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2025 Miller Research Potato Pest Management Seminar
Potato All Locations
Posted on: February 6, 2025 by Jeff Miller
Come to the Miller Research Potato Pest Management Meeting Tuesday, Feb. 18 from 9:00 to 1:00 at the Wilson Theater in Rupert. The cost to attend is $35 and 3 ISDA and 3 CCA IPM credits are available. Lunch will be provided. After covering meeting costs, the remaining funds will be donated to the 4-H program. Contact Cheryn Suarez at cheryn@millerresearch.com if you have any questions.
More information can be found at the attached link.
Reminder! Take up Annual Survey 2024
All Crops All Locations
Survey Reminder
Posted on: November 22, 2024 by Jemila Chellappa
Reminder!
Take the 2024 Pest Alert Network Annual Survey and Win
Crops and Small Farms Subscribers: https://uidaho.co1.qualtrics.com/jfe/form/SV_6M7izVGWJ1pDGKy
Landscape and Gardens Subscribers:
https://uidaho.co1.qualtrics.com/jfe/form/SV_7af2iQJTcXSVZMq
We’re inviting you to participate in the 2024 Pest Alert Network Annual Survey focused on pest management. Your valuable input will help us understand pest trends and control methods and improve the Pest Alert Network!
Why Participate?
• Share your experience in pest control & management
• Help improve our pest alert services
• 3 lucky participants will be randomly selected to win a $50 gift card as a token of appreciation!
Who Should Take the Survey: PNW Pest Alert Network Subscribers
Time: Only 5-8 minutes to complete
Thank you for making pest management more effective and sustainable.
Pesticide Applicator Recertification Seminar
All Crops All Locations
Posted on: November 1, 2024 by Jeff Miller
The University of Idaho is hosting the Pesticide Applicator Recertification Seminar on December 4 in Burley (Burley Best Western) and on December 5 in Twin Falls (Herrett Center, CSI).
Morning session: registration begins at 7:45 and the program runs from 8:30 to 12:00 pm (3 credits).
Afternoon session: registration at 12:30 and the program runs from 1:00 to 4:30 pm (3 credits).
The cost to attend is $35 (cash, card, or check) whether you attend the whole or half day.
Contact Linsy at the Jerome Extension office (208-324-7578, lin...@uidaho.edu) to RSVP.
Topics include:
Management of Russian Olive
Managing vole infestations in agriculture
Pesticide safety: Best practices for applicators
Environmental impacts of pesticides
Impacts of pesticide overuse
Beneficial insects for pest management
Manure and weed seeds
Pasture and range plants that endanger livestock
ISDA pesticide applicator program updates
Top applicator violations in Idaho
Tricounty/Cassia County weed control programs
Increasing efficiency of applications and reducing overapplication
2024 Idaho Association of Plant Protection Annual Meeting
All Crops All Locations
Posted on: October 11, 2024 by Jeff Miller
All are invited to the 2024 annual meeting of the Idaho Association of Plant Protection November 6-7 at the Herrett Center in Twin Falls! The cost to attend is $30 ($20 for students). Wed. credits = 2 ISDA, 4 CCA IPM. Thurs. credits = 2 ISDA, 3.5 CCA IPM. The agenda is attached and more information can be found at: https://millerresearch.com/event/2024-idaho-association-of-plant-protection/
» https://millerresearch.com/event/2024-idaho-association-of-plant-protection/
final report of the 2024 potato psyllid / Lso monitoring season.
Potato All Locations
potato psyllid
Posted on: September 12, 2024 by Tasha Stanzak
This is the
final report of the 2024 potato psyllid / Lso monitoring season.
One psyllid
from last week’s samples tested positive for Lso, the bacterium associated with
zebra chip disease (ZC).
About 4% of all
psyllids tested positive for Lso this year compared to about 6% last year and around
1% in most recent years (with the exception of 2022 in which 22% were positive).
It was another
interesting year with moderately high Lso incidence, but relatively low overall
psyllid captures. Captures were only slightly higher than last year. Thus, the
risk of ZC likely was mitigated somewhat by low psyllid captures despite
relatively high Lso.
Please remember
that our research with Russet Burbank shows that ZC can develop during storage
if infection occurs as late as two weeks before vine kill. Please maintain your
IPM programs, especially in areas with higher captures of Lso-positive
psyllids.
Thanks again to
all of our cooperators who helped to deploy and retrieve so very many yellow
sticky traps! And thanks to the growers who let us use their fields for this
work!
More information on management can be
found here:
Management: https://www.uidaho.edu/cals/potatoes/news/psyllid-management
To view the
weekly data by site in the old spreadsheet format: https://tinyurl.com/potatopsyllid
Please visit
the Idaho Pest Monitoring Dashboard, for graphical summaries of our psyllid
captures and an archive of blog posts for this season: https://idahopestmonitoring.org/
Psyllid captures increase a bit; no new Lso positives
Potato All Locations
potato psyllid
Posted on: September 5, 2024 by Tasha Stanzak
• This week we received traps from 52 of the 58 fields that we are monitoring.
• We captured a total of 40 psyllids across 11 fields.
• Captures were from the following counties: Payette, Canyon, Owyhee, Elmore, and Twin Falls.
• None of the psyllids collected last week tested positive for Lso.
Psyllid captures increased this week to their highest level overall this season; however, captures are still relatively low and similar to the season-long totals from last year. Thankfully, no new Lso-positive psyllids were collected last week. Although psyllid captures have been relatively low this season, Lso incidence was slightly higher than in most recent years, which may slightly elevate risk of ZC. Please maintain you IPM programs, especially in areas with higher captures of Lso-positive psyllids.
This is our last week of retrieving traps from the field and reporting on captures. Next week we will report on Lso testing results from the psyllids collected this week and wrap up the season.
Please maintain your IPM programs. More information on management can be found here:
https://www.uidaho.edu/extension/ipm/ag-pests/arthropods/psyllids
To view the weekly data by site in the old spreadsheet format: https://tinyurl.com/potatopsyllid
Please visit the Idaho Pest Monitoring Dashboard, for graphical summaries of our psyllid captures from 2020 through 2024 as well as an archive of this year’s weekly summaries: https://idahopestmonitoring.org/
Psyllid captures still low; one new Lso positive
Potato All Locations
potato psyllid
Posted on: August 29, 2024 by Erik Wenninger
• This week we received traps from 53 of the 58 fields that we are monitoring; 5 sites are finished for the season.
• We captured a total of 19 psyllids across 5 fields.
• Captures were from the following counties: Payette, Canyon, and Twin Falls.
• One of the psyllids collected last week tested positive for Lso.
Psyllid captures continue to be relatively low overall—slightly lower than last week and similar to the low captures we saw over the last two years at this time. We did find another Lso-positive psyllid last week so—despite the low captures—we are seeing some positives, which may slightly elevate the risk of ZC. A psyllid from a set of sticky traps that arrived late to us could not be tested, so we will have those results by next week. As we get into vine kill, remember that our research with Russet Burbank shows that ZC can develop during storage if infection occurs as late as two weeks before vine kill.
Please maintain your IPM programs. More information on management can be found here: https://www.uidaho.edu/extension/ipm/ag-pests/arthropods/psyllids
To view the weekly data by site in the old spreadsheet format: https://tinyurl.com/potatopsyllid
Please visit the Idaho Pest Monitoring Dashboard, for graphical summaries of our psyllid captures from 2020 through 2024 as well as an archive of this year’s weekly summaries: https://idahopestmonitoring.org/
2024 ISDA Pesticide Disposal Program
All Crops All Locations
Posted on: August 24, 2024 by Jeff Miller
From the ISDA website:
Homeowners, growers, dealers, and professional applicators storing unusable or unwanted pesticides will have a safe and free opportunity to dispose of them at an ISDA pesticide disposal site.
ISDA pesticide disposal sites will take most pesticides including herbicides, insecticides, fungicides, rodenticides or anything ending with “cide.” No high-pressure canisters, fertilizer, micronutrients, paint, solvents, motor oil, or rinsates other than seed treat rinsates will be accepted. Loads exceeding 1,000 pounds must be pre-registered.
- Idaho Falls / Bonneville County Transfer Station – August 27th 9:00 a.m. to 1:00 p.m.
2455 Hemmert Ave, Idaho Falls, ID 83401 - Twin Falls / Twin Falls County Highway District – August 28th 9:00 a.m. to 1:00 p.m.
3208 E 3700 N, Twin Falls, ID 83301 - American Falls / Power County Transfer Station – Sept. 10th 9:00 a.m. to 1:00 p.m.
2950 Landfill Rd, American Falls, ID 83211 - Burley / Bureau of Land Management Field Office – Sept. 11th 9:00 a.m. to 1:00 p.m.
3630 Overland Rd, Burley, ID 83318
More information can be found at the ISDA website.
» https://agri.idaho.gov/pesticides/pesticide-disposal-program/
Psyllid captures still low; no new Lso-positives
All Crops All Locations
potato psyllid
Posted on: August 23, 2024 by Tasha Stanzak
·
This week we received traps from 57 of the 58
fields that we are monitoring
·
We captured a total of 30 psyllids across 14 fields.
Four of these psyllids were from traps that were in the field for two weeks.
·
Captures were from the following counties:
Payette, Canyon, Owyhee, Jerome, and Twin Falls.
·
None of the psyllids collected last week tested
positive for Lso.
Psyllid
captures ticked up relative to last week but were still relatively low compared
to recent years. Thankfully, we found zero Lso-positive psyllids last week. This
season’s low overall psyllid captures and moderate Lso incidence (in previous
weeks) suggests low to moderate risk for ZC. We still suggest maintaining your
IPM programs. Our research has shown that ZC can develop during storage if
infection occurs as late as two weeks before vine kill.
Please have your
IPM programs in place. More information on management can be found here:
https://www.uidaho.edu/extension/ipm/ag-pests/arthropods/psyllids
To view the
weekly data by site in the old spreadsheet format: https://tinyurl.com/potatopsyllid
Please visit
the Idaho Pest Monitoring Dashboard, for graphical summaries of our psyllid
captures from 2020 through 2024 as well as an archive of this year’s weekly
summaries: https://idahopestmonitoring.org/
Psyllid captures remain relatively low; one more Lso positive
Potato All Locations
potato psyllid
Posted on: August 15, 2024 by Erik Wenninger
• This week we received traps from 38 of the 58 fields that we are monitoring; two of our crop consultant collaborators were not able to get to their fields this week but we expect to get those traps next week.
• We captured a total of 16 psyllids across 5 fields.
• Captures were from the following counties: Payette, Canyon, Owyhee, and Twin Falls.
• One of the psyllids collected last week tested positive for Lso.
Psyllid captures were relatively low again this week and similar to the captures observed at this time during the last two years. Of course, we did not receive traps from several fields, but last week most of those fields showed zero psyllid captures (and a few had one capture), so we may expect to see only a slight increase in the total captures when we get those trap captures added to the tallies. One Lso-positive psyllid from last week was from Payette County. We continue to see a smattering of Lso-positives psyllids over this season; however, the relatively low psyllid captures overall should mitigate risk of ZC.
Please have your IPM programs in place. More information on management can be found here: https://www.uidaho.edu/extension/ipm/ag-pests/arthropods/psyllids
To view the weekly data by site in the old spreadsheet format: https://tinyurl.com/potatopsyllid
Please visit the Idaho Pest Monitoring Dashboard, for graphical summaries of our psyllid captures from 2020 through 2024 as well as an archive of this year’s weekly summaries: https://idahopestmonitoring.org/
4 Lso-positive psyllids; overall captures still moderately low
Potato All Locations
potato psyllid
Posted on: August 8, 2024 by Erik Wenninger
- This week we received traps from 58 of the 58 fields that we are monitoring.
- We captured a total of 21 psyllids across 11 fields.
- Captures were from the following counties: Payette, Canyon, Owyhee, and Twin Falls.
- Four of the psyllids collected last week tested positive for Lso.
Psyllid captures declined this week relative to last week. Captures overall continue to be moderately low and similar to the last two years. One Lso-positive psyllid was from Payette County, one from Elmore County, and two from Twin Falls County. Incidence of Lso usually diminishes over the season, though it is not unheard of to see a few positive psyllids in July to August. Thankfully overall captures have been relatively low this year, which should mitigate risk of ZC even with slightly higher Lso incidence in psyllids.
We urge growers to have their IPM programs in place. More information on management can be found here: https://www.uidaho.edu/extension/ipm/ag-pests/arthropods/psyllids
To view the weekly data by site in the old spreadsheet format: https://tinyurl.com/potatopsyllid
Please visit the Idaho Pest Monitoring Dashboard, for graphical summaries of our psyllid captures from 2020 through 2024 as well as an archive of this year’s weekly summaries: https://idahopestmonitoring.org/
3 Lso positive psyllids; captures tick up only slightly
Potato All Locations
potato psyllid
Posted on: August 1, 2024 by Tasha Stanzak
• This week we received traps from ¬¬58 of the 58 fields that we are monitoring.
• We captured a total of 38 psyllids across 16 fields.
• Captures were from the following counties: Payette, Canyon, Owyhee, Elmore, Twin Falls, and Minidoka.
• Three of the psyllids collected last week tested positive for Lso.
Psyllid captures ticked up only slightly this week relative to last week. Captures overall continue to be moderate and similar to last year. One Lso-positive psyllid was from Payette County and two from Twin Falls County. Incidence of Lso usually diminishes over the season, though it is not unheard of to see a few positive psyllids in July to August. Thankfully overall captures have been moderate this year, which should mitigate risk of ZC even with slightly higher Lso incidence in psyllids.
Nevertheless, we urge growers to have their IPM programs in place. More information on management can be found here: https://www.uidaho.edu/extension/ipm/ag-pests/arthropods/psyllids
To view the weekly data by site in the old spreadsheet format: https://tinyurl.com/potatopsyllid
Please visit the Idaho Pest Monitoring Dashboard, for graphical summaries of our psyllid captures from 2020 through 2024 as well as an archive of this year’s weekly summaries: https://idahopestmonitoring.org/
psyllid captures continue to be moderate; no new Lso positives
Potato All Locations
potato psyllid
Posted on: July 25, 2024 by Tasha Stanzak
• This week we received traps from 58 of the 58 fields that we are monitoring.
• We captured a total of 30 psyllids across 14 fields.
• Captures were from the following counties: Payette, Canyon, Gooding, Twin Falls, Minidoka, and Bingham.
• None of the psyllids collected last week tested positive for Lso.
Psyllid captures continue to be moderate. Captures this week were only slightly higher than what we found at this time over the last two years. Captures in the Treasure Valley and Upper Snake were similar to last week; captures in the Magic Valley ticked up only slightly relative to last week. We have captured a total of only 3 Lso-positive psyllids so far, which is lower than the Lso incidence we found at this time over the last few years. Typically we find the highest incidence of Lso in psyllids early during the season, so this low incidence so far is a good sign that overall Lso incidence for this season may be low.
Nevertheless, we urge growers across the state to have their IPM programs in place. More information on management can be found here:
https://www.uidaho.edu/extension/ipm/ag-pests/arthropods/psyllids
To view the weekly data by site in the old spreadsheet format: https://tinyurl.com/potatopsyllid
Please visit the Idaho Pest Monitoring Dashboard, for graphical summaries of our psyllid captures from 2020 through 2024 as well as an archive of this year’s weekly summaries: https://idahopestmonitoring.org/
psyllid captures tick down; one more Lso-positive psyllid
Potato All Locations
potato psyllid
Posted on: July 18, 2024 by Tasha Stanzak
• This week we received traps from 57 of the 58 fields that we are monitoring.
• We captured a total of 14 psyllids across 11 fields.
• Captures were from the following counties: Canyon (2 fields), Owyhee, Jerome (2 fields), Twin Falls (4 fields), Cassia, and Bingham.
• One more psyllid collected last week in Twin Falls County tested positive for Lso.
Psyllid captures have been ticking down slightly over the last two weeks. Captures this week were similar to what we found at this time over the last two years. So, after seeing moderately high captures at the start of the monitoring season, we are now seeing relatively low captures. We have captured a total of 3 Lso-positive psyllids so far, which is lower than the Lso incidence we found at this time over the last few years.
Nevertheless, we urge growers across the state to have their IPM programs in place. More information on management can be found here: https://www.uidaho.edu/extension/ipm/ag-pests/arthropods/psyllids
To view the weekly data by site in the old spreadsheet format: https://tinyurl.com/potatopsyllid
Please visit the Idaho Pest Monitoring Dashboard, for graphical summaries of our psyllid captures from 2020 through 2024 as well as an archive of this year’s weekly summaries: https://idahopestmonitoring.org/
Yellow rust (stripe rust), Bacterial leaf streak / black chaff, FHB, frost damage in wheat, barley
All Crops All Locations
Yellow (stripe) rust, Bacterial leaf streak, FHB
Posted on: July 17, 2024 by Juliet Marshall
The early season for Idaho was cool and unusually rainy. The weather was good for growth of winter and spring cereals. Stripe rust started developing in winter wheat (LCS Jet in production south of American Falls.) The season was mostly quiet until June 18th – 19th when there were significant frosts and freezing conditions throughout eastern Idaho.
As a result, bacterial infections took off, significantly damaging durum (Tiburon) and spring wheat.
Stripe rust started to show up at very low levels at the end of June, around heading of spring wheat. Initially the hard red spring wheat WB9707 was the first to show infection. Within 2 weeks, WB7696 (hard white spring), WB7313 (hard white spring), and now Holmes (hard red spring wheat) are also showing significant symptoms in production fields. Many other varieties are showing infections and will be rated soon in the Extension Variety Trials. Spring wheat is currently in early grain fill.
There is some BLS in spring barley as well, although it (black chaff) seems much more severe in spring wheat.
Some FHB has been collected in production fields of winter barley. Low levels of FHB are starting to show in spring wheat production fields around Idaho Falls. Night time temperatures and humidity are higher than usual due to cloud cover. Skies are hazy due to smoke from western fires. I am keeping an eye out for the development of additional FHB.
2024 Miller Research Potato Pest Management Field Day
Potato All Locations
Posted on: July 17, 2024 by Jeff Miller
Miller Research will be holding its annual potato pest
management field day on Wednesday, August 21 from 10:00 AM to 12:00 PM. The cost to attend is $20. Two ISDA and two CCA (PM) credits are available. More information can be found by following the attached link.
» https://millerresearch.com/event/2024-miller-research-potato-pest-management-field-day/
psyllid captures similar across the state
Potato All Locations
potato psyllid
Posted on: July 12, 2024 by Tasha Stanzak
• This week we received traps from all 58 fields that we are monitoring.
• We captured a total of 34 psyllids across 15 fields.
• Captures were from the following counties: Canyon (4 fields), Owyhee, Twin Falls (6 fields), Gooding, Jerome, Bannock, and Bingham.
• One more psyllid collected from the Kimberly Research & Extension Center last week tested positive for Lso.
• None of the other psyllids collected last week tested positive for Lso. We are still waiting on results from 4 psyllids that were delivered to us late last week.
Psyllid captures this week were higher than at this time in the last two years; however, captures have not been as high as 2020-2021. It is noteworthy that we are now seeing similar numbers of psyllids per field across the state. We typically see higher captures in the Treasure Valley before captures increase across the rest of the state, so these observations are unusual. Thankfully we did not see an uptick in Lso-positive psyllid captures this week.
We urge growers across the state to have their IPM programs in place. More information on management can be found here: https://www.uidaho.edu/extension/ipm/ag-pests/arthropods/psyllids
To view the weekly data by site in the old spreadsheet format: https://tinyurl.com/potatopsyllid
Please visit the Idaho Pest Monitoring Dashboard, for graphical summaries of our psyllid captures from 2020 through 2024 as well as an archive of this year’s weekly summaries: https://idahopestmonitoring.org/
Cercospora Leaf Spot in Sugarbeet
Sugarbeets All Locations
Cercospor Leaf Spot
Posted on: July 12, 2024 by Oliver Never
Sugarbeets - Treasure Valley, Western Magic Valley
University of Idaho and Amalgamated Sugar Company personnel have identified Cercospora leaf spot in fields near Parma ID, Wilder ID, and Glenns Ferry ID. Incidence is still low, however, most fields have closed rows, Cercospora spores have been detected in spore traps deployed in the Treasure Valley, and environmental conditions have been conducive for infection for a couple of weeks now.
If fungicide applications have not yet occurred, we strongly encourage everyone to start spraying against Cercospora leaf spot.
Several fungicides are available but be aware of multiple fungicide-resistant strains of Cercospora. Depending on the disease pressure and chemistry used, applications with different chemistries should be repeated every 14 days. Using a protectant such as copper products, EBDCs, or hydrogen peroxide with every spray is strongly recommended.[https://www.srcoop.com/articles/2024_Fungicide_Recommendations.pdf ]
Contact your crop consultant from the Amalgamated Sugar Company to discuss suitable fungicides for your area, to report a loss of fungicide efficacy, or if you have any questions.
Click on the link below for the Cercospora leaf spot pages in the PNW Plant Disease Management Handbooks.
https://pnwhandbooks.org/plantdisease/host-disease/sugar-beet-beta-vulgaris-cercospora-leaf-spot
2024 Potato psyllid monitoring program underway in Idaho
Potato All Locations
potato psyllid
Posted on: July 4, 2024 by Erik Wenninger
The University of Idaho and our crop consultant collaborators across the state are once again monitoring for potato psyllids, zebra chip disease (ZC), and liberibacter (Lso), the bacterium associated with ZC. The monitoring program covers commercial potato fields throughout southern Idaho and is funded in part by the Idaho Potato Commission and generous in-kind contributions by our cooperators.
Our official monitoring season began with wide deployment of traps last week and will continue for at least 10 weeks. We have 58 fields across the state this year, using 4 sticky traps per field at all sites.
• This week we received traps from all 58 fields that we are monitoring.
• We captured a total of 53 psyllids across 19 fields.
• Captures were from the following counties: Payette, Canyon (3 fields), Owyhee, Twin Falls (10 fields), Jerome, Cassia, Minidoka, and Bingham.
• Sites in Twin Falls County had a total of 43 psyllids.
• We also captured 1 psyllid from the Kimberly Research & Extension Center last week that tested positive for Lso.
• For psyllids captured this week, we expect to have results on Lso incidence next week.
Psyllid captures this week were higher than at this time in the last two years. It is noteworthy that most of the captures came from the Magic Valley, and most of those from one field (though captures in Twin Falls County were widespread). We typically see higher captures in the Treasure Valley before the Magic Valley, so these observations are unusual. It is not uncommon to see a few Lso-positive psyllids early in the season and fewer as the season progresses. However, if we continue to see relatively high captures in addition to more Lso-positives, this will represent higher ZC risk.
Given the potentially higher ZC risk, we strongly urge growers to have their IPM programs in place. More information on management can be found here:
https://www.uidaho.edu/cals/potatoes/pest-management/psyllid-management
To view the weekly data by site in the old spreadsheet format: https://tinyurl.com/potatopsyllid
Please visit the Idaho Pest Monitoring Dashboard, for graphical summaries of our psyllid captures from 2020 through 2024: https://idahopestmonitoring.org/
» https://www.uidaho.edu/cals/potatoes/pest-management/psyllid-management
Pest Alert: Western cherry fruit fly in Idaho
Cherry All Locations
Western Cherry Fruit Fly
Posted on: June 10, 2024 by Jemila Chellappa
Crop: Cherry
Problem Description:
The first Western cherry fruit fly has been found in an Idaho State Department of Agriculture Western cherry fruit fly trap in Western Idaho. If treatment for the Western cherry fruit fly is not already underway, it should begin now.
Contact for further Information: vene.stewart@isda.idaho.gov
» https://pnwhandbooks.org/insect/tree-fruit/cherry/cherry-western-cherry-fruit-fly
2024 Snake River Weed Research Tour at the Malheur Experiment Station, Ontario, OR.
All Crops All Locations
Posted on: June 10, 2024 by Jemila Chellappa
Please join us this Thursday, June 13, 2024, for the 2024 Snake River Weed Research Tour at the Malheur Experiment Station, Ontario, OR.
Where: Malheur Experiment Station, Ontario, OR 97914
When: Thursday, June 13, 2024
Registration: 8:00 to 8:30 AM
Tour: 8:30 to 12:00 Noon
Complimentary lunch will be provided at 12:05 PM upon completion of the tour.
The tour will feature a session to correctly identify newly identified invasive weeds in the PNW region, Palmer amaranth and waterhemp, with live potted samples.
Studies for weed control in potato, onion, and sugar beet.
We have approval for pesticide application license recertification credits, and one must attend all parts of the tour to receive credits.
Oregon: 3 credits (2 core and 1 other)
Idaho: 3 credits.
The tour is open to the public!
For more information, please contact Joel Felix at joel.felix@oregonstate.edu or janet.jones@oregonstate.edu
2024 University of Idaho Snake River Weed Management Tour - JUNE 25 - Aberdeen R&E Center
All Crops All Locations
UI Snake River Weed Mgt Tour and Field Day Aberdeen R&E Center June 25
Posted on: June 10, 2024 by Pamela Hutchinson
University of Idaho Snake River Weed Management Tour and Field Day
Aberdeen R&E Center
Tuesday June 25, 2024
Registration: 8 to 9a
Tour: 9a to noon
Sponsored Lunch noon to 1p
Pesticide Applicator Recertification Credits offered: 4
No RSVP needed
2- and 3-way Tank Mixtures for Weed Control in Potatoes
Anthem Flex - Preemergence Tank Mixtures
Simulated Excess Rainfall Effect on Crop Injury and Weed Control
IR-4 Quinoa Herbicide Tolerance Trials
ISDA Specialty Crop Block Grant: Herbicide Tolerance in Condiment Mustard
Pest Management Research and Extension Updates
See attached agenda for more specific information about the Tour
phutch@uidaho.edu
» Agenda June 25 UI Snake River Weed Mgt Tour Aberdeen R&E Center
2024 Miller Research Potato Pest Management Seminar Handouts
Potato All Locations
Posted on: April 15, 2024 by Jeff Miller
The 2024 Miller Research Potato Pest Management Seminar was held on February 21 at the Historic Wilson Theater in Rupert, ID. Handouts from the presentations are now available at the attached link.
» https://millerresearch.com/2024/04/2024-miller-research-potato-pest-management-meeting/
2024 Ag Talk Tuesday sessions to resume
All Crops All Locations
General announcement - all crops
Posted on: April 4, 2024 by Kasia Duellman
The University of Idaho Ag Talk Tuesday sessions will resume once again in 2024. Join us for our 7th season of these live Zoom sessions held every first and third Tuesday, May through August. The sessions start at 11:00 AM (MDT) and typically conclude by Noon (MDT).
Registration is required to attend. The registration link is available on our website: https://www.uidaho.edu/ag-talk
During each Ag Talk Tuesday session, we invite contributions regarding timely information on crops in Idaho and the Pacific Northwest. These Crop Updates are then followed by a Featured Topic with Guest Speakers for deep dives into ag-related topics of interest.
Below is our current 2024 (Draft) Agenda for Featured Topics (subject to change):
- May 7: Water Update (Keith Esplin, Eastern Idaho Water Rights Coalition) and Ag Outlook (Josh Huff, Ag West Farm Credit)
- May 21: Soil arthropods and soil health: Belowground partners in PNW wheat systems (Dane Elquist and Sanford Eigenbrode*, University of Idaho) (*presenter)
- June 4: To be confirmed
- June 18: Family farms and corporate farms - what is the Idaho landscape? (Brett Wilder, University of Idaho)
- July 2: Entomology at Parma REC (Dr. Armando Falcon-Brindis, University of Idaho)
- July 16: Nematodes (Dr. Pooria Ensafi, University of Idaho)
- Aug 6: Annual alfalfa as a source of nitrogen for subsequent small grain crops (Reed Findlay*, Dr. Jared Spackman, Joseph Sagers, Justin Hatch, Tom Jacobsen, Jared Gibbons; University of Idaho) (*presenter)
- Aug 20: Idaho crop profitability outlook (Dr. Pat Hatzenbuehler, University of Idaho)
Looking forward to seeing you at Ag Talk Tuesday!
Sincerely,
Your Ag Talk Tuesday Organizers:
- Kasia Duellman (kduellman@uidaho.edu)
- Doug Finkelnburg (dougf@uidaho.edu)
- Pam Hutchinson (phutch@uidaho.edu)
- Juliet Marshall (jmarshall@uidaho.edu)
Cereal Schools Flyer and Agenda
Small Grains All Locations
Cereal Diseases and Agronomics
Posted on: January 19, 2024 by Juliet Marshall
This is a reminder that our 2024 Cereal Schools are coming soon!
See the attached files for the schedule. We hope to see you there!
Also, the Cereal Schools are the same dates EVERY YEAR: the first full week in February.
2025 Cereal Schools will be scheduled for Feb 4 – 7, Tuesday through Friday in the same order.
Cheers!
Juliet
-- Juliet M. Marshall, Ph.D.
Plant Sciences Department Head
Endowed Research Professor, Cereals Pathology and Agronomy
Idaho Falls R&E Center
1776 Science Center Drive Suite 205
Idaho Falls, ID 83402
208-529-8376 office
208-390-4859 cell
Pesticide recertification seminars at the Western Idaho Ag Show
Announcements All Locations
Posted on: January 11, 2024 by Ronda Hirnyck
Six pesticide recertification credits offered at the Ag Show. Location: "The Center at the Fair", Canyon County Fairgrounds, Caldwell, ID.
WESTERN IDAHO AG SHOW –JANUARY 23-24, 2024
Pesticide Seminars for Recertification Credit
Day 1—January 23, 2023-Tuesday.
WESTERN IDAHO AG SHOW – JANUARY 24-25, 2023
Day 2 – January 24, 2024 --Wednesday
ICIA Seed Seminar - January 16, 2024 - Red Lion Hotel - Pocatello, Idaho
Potato All Locations
General announcement
Posted on: January 10, 2024 by Kasia Duellman
Dear All:
I have been remiss in passing on this information regarding the Annual ICIA Seed Seminar that precedes the Idaho Potato Conference, sponsored by the Idaho Crop Improvement Association. Please forgive me - the deadline for early registration has passed, but you can register at the door on the day of the event.
Date: January 16, 2024
Time: Seed Seminar - 11:30AM to 3:45PM (a closed PAC meeting follows, from 3:45PM to 5:00PM)
Location: Red Lion Hotel, 1555 Pocatello Creek Road, Pocatello, Idaho
For questions, please contact Ruby Hall at ICIA via email (rhall@idahocrop.com) or phone (208-522-9198).
Please see attached the registration form and the agenda.
Sincerely,
Kasia
Job announcement - Farm Assistant II, UI Kimberly REC
All Crops All Locations
General announcement - all crops
Posted on: December 14, 2023 by Kasia Duellman
All:
The University of Idaho Kimberly Research & Extension Center is advertising a full-time position with benefits. Please forward to anyone who may be interested in applying.
This position will operate tractors and other field equipment, plant, fertilize, cultivate, spray, and harvest in support of research and non-research related crops. Perform routine maintenance on machinery and equipment. Irrigate some weekends. Perform backup facilities maintenance at the Kimberly R&E Center. Contribute to team effort by creating a work environment that emphasizes teamwork and safety.
Here is the link to the position: https://uidaho.peopleadmin.com/postings/43031
Need Pesticide Credits for 2023?
Announcements All Locations
Posted on: November 7, 2023 by Kimberly Tate
Enroll in the University of Idaho (UI) Extension Pesticide Safety Education Program (PSEP) for the 2023 Fall Recertification Webinar Series (held via Zoom; no camera/no account required). Attend for $10 per applicator/per webinar. Completed webinar(s) receive one Idaho State Department of Agriculture pesticide credit(s)*. Note: ALL webinars are held at Mountain Time (MT).
- Nov. 14 from 2–3 p.m. (MT) — Ronda Hirnyck: Changes to pesticide regulations; What the applicator needs to know!
- Nov. 21 from 2–3 p.m. (MT) — Doug Finkelnburg: Avoiding herbicide residual issues in cropping systems
- Nov. 28 from 2–3 p.m. (MT) — Albert Adjesiwor, Ph.D.: Palmer Amaranth and Waterhemp, the Troublesome Pigweeds: Identification, early detection, and rapid response
- Dec. 5 from 2–3 p.m. (MT) — Ariel Agenbroad: Assessing beneficial insect habitat on your farm or property
- Dec. 12 from 2–3 p.m. (MT) — Tom Jacobsen: Minimizing pesticide resistance
- Dec. 19 from 2–3 p.m. (MT) — Brad Stokes: Overview of invasive organisms in Idaho and their treatment options
Registration will close at noon (MT) on the day of the webinar.
*For pesticide credit: Pesticide applicators must answer questions within the webinar session. This requires individual computer and internet access for each user. Answers will be collected to confirm attendance was maintained for the entire webinar. The Zoom platform does not recognize multiple users connected with the same email address. Be sure to utilize different identifying information.
Register Today: https://marketplace.uidaho.edu/C20272_ustores/web/store_main.jsp?STOREID=53&SINGLESTORE=true
Need more information? Contact Kimberly Tate, UI Extension Pest Management Instructor by phone (208) 364-4581 or email ktate@uidaho.edu.
University of Idaho Potato Storage Open House
Potato All Locations
Posted on: November 6, 2023 by Gustavo Teixeira
Potato Enthusiasts -- Get ready for an extraordinary experience! You are warmly
invited to the inaugural University of Idaho Potato Storage Open House taking
place at the state-of-the-art Potato Storage Facility at the Kimberly Research
and Extension Center on December 5th, from 9:00 am to noon.
What's in Store for You? At this event, we're bridging the gap
between industry and cutting-edge U of I storage research, and we've packed the
morning with exciting activities:
Explore the Future: Witness the latest breakthroughs and
advancements in potato storage through captivating research posters and live
demonstrations.
Behind the Scenes: Step inside the innovative Potato Storage
Facility and see where the magic happens. Discover how this facility supports
our industry-related research and extension projects, contributing to your
economic growth.
Knowledge Exchange: Join our U of I researchers in lively
discussions about the most current potato research practices and industry
trends.
But that's not all! Your participation at the Open House will
not only be highly appreciated but also incredibly insightful and
rewarding.
Event Details:
Date: December 5th
Time: 9:00 am - noon
Location: Potato Storage Facility, Kimberly Research and
Extension Center
Don't miss out on this unique opportunity to connect, learn, and be a
part of the future of potato storage.
2023 Idaho Association of Plant Protection Meeting
All Crops All Locations
Posted on: October 11, 2023 by Jeff Miller
The program is set for the 2023 Idaho Association of Plant Protection on November 1-2 at the Univsersity of Idaho Extension office in Rupert (McGregor Building, 85 East Baseline, Rupert, Idaho, 83350).
Program details are available in the attached announcement. Please share with any interested individuals.
» https://millerresearch.com/event/2023-idaho-assocation-of-plant-protection/
Ag Talk Report Newsletter - Issue 5 Number 1
All Crops All Locations
General announcement - all crops
Posted on: September 28, 2023 by Kasia Duellman
Greetings! The first issue of the Ag Talk Report for 2023 is now available. Ag Talk Report is a newsletter for Idaho crops and a venue to provide more insight from our Ag Talk Tuesday sessions. It contains information far beyond what is heard on the Ag Talk Tuesday sessions. It is now available for your reading pleasure at the following link: http://www.uidaho.edu/ag-talk
In this issue, learn about how hemp might be used in a potato rotation, gain insight into the economic outlook and costs of return for various crops, and find out how the 2023 southeast Idaho aphid monitoring efforts compared to other years.
final report of the 2023 potato psyllid / Lso monitoring season.
Potato All Locations
potato psyllid
Posted on: September 21, 2023 by Tasha Stanzak
This is the final report of the 2023 potato psyllid / Lso monitoring season.
All of the psyllids tested last week were negative for Lso, the bacterium associated with zebra chip disease (ZC).
About 6% of all psyllids tested positive for Lso this year compared to around 1% in most recent years (and 22% last year).
It was another interesting year with somewhat high Lso incidence, but relatively low overall psyllid captures. Captures were only slightly higher than last year, which was among our lowest years ever. Thus, the risk of ZC likely was mitigated somewhat by low psyllid captures despite relatively high Lso.
Thanks again to all of our cooperators who helped to deploy and retrieve so very many yellow sticky traps! And thanks to the growers who let us use their fields for this work!
More information on management can be found here: https://www.uidaho.edu/cals/potatoes/news/psyllid-management
To view the weekly data by site in the old spreadsheet format: https://tinyurl.com/potatopsyllid
Please visit the Idaho Pest Monitoring Dashboard, for graphical summaries of our psyllid captures and an archive of blog posts for this season: https://idahopestmonitoring.org/
Psyllid trapping wrap up
Potato All Locations
potato psyllid
Posted on: September 14, 2023 by Tasha Stanzak
We officially ended the monitoring season last week, but we received a bonus week of sticky traps from two fields in Canyon County this week. We captured a total of 12 psyllids across these 2 fields.
None of the six psyllids captured last week was positive for Lso, the bacterium associated with zebra chip disease (ZC). Next week we will report Lso results for the 12 psyllids submitted this week and provide an end-of-season wrap up.
About 7% of all psyllids tested positive for Lso this year compared to around 1% in most recent years (and 22% last year). It is too soon to tell what this low psyllid / somewhat high Lso season means for ZC in tubers at harvest. Our studies in Russet Burbank showed that ZC can develop during storage if infection occurs as late as two weeks before vine kill. Please consider this in your late-season IPM programs. Risk could be mitigated by processing tubers from fields at higher risk sooner rather than later.
More information on management can be found here: https://www.uidaho.edu/cals/potatoes/news/psyllid-management
To view the weekly data by site in the old spreadsheet format: https://tinyurl.com/potatopsyllid
Please visit the Idaho Pest Monitoring Dashboard, for graphical summaries of our psyllid captures and an archive of blog posts for this season: https://idahopestmonitoring.org/
Psyllid trapping ends for the season.
Potato All Locations
potato psyllid
Posted on: September 7, 2023 by Tasha Stanzak
This week we received traps from 20 of the 55 fields that we are monitoring. Thirty-three fields have been vine killed or are senescing and are no longer being monitored. We captured a total of 6 psyllids across 3 fields. The three fields were in Canyon, Elmore, and Twin Falls counties.
This is our last week of actively trapping psyllids. We will post the final results next week to finish out the monitoring season.
One psyllid tested from last week’s Canyon County captures was positive for Lso, the bacterium associated with zebra chip disease (ZC); the rest of the psyllids captured last week were negative for Lso. This is the first Lso positive we have detected since early July.
With harvest season upon us, it is worth remembering that our studies in Russet Burbank showed that ZC can develop during storage if infection occurs as late as two weeks before vine kill. Please consider this in your late-season IPM programs. More information on management can be found here: https://www.uidaho.edu/cals/potatoes/news/psyllid-management
To view the weekly data by site in the old spreadsheet format: https://tinyurl.com/potatopsyllid
Please visit the Idaho Pest Monitoring Dashboard, for graphical summaries of our psyllid captures and an archive of blog posts for this season: https://idahopestmonitoring.org/
Psyllid captures dropped this week
Potato All Locations
potato psyllid
Posted on: September 1, 2023 by Erik Wenninger
This week we received traps from 31 of the 55 fields that we are monitoring. Twenty-two fields have been vine killed or are senescing and are no longer being monitored. We captured a total of 15 psyllids across 7 fields. Five of the fields were in Canyon County, and the other two fields were in Elmore and Twin Falls counties.
Total psyllid captures dropped notably from last week. The slightly cooler temperatures and precipitation likely contributed to lower captures.
All psyllids tested from last week’s captures were negative for Lso, the bacterium associated with zebra chip disease (ZC); however, the results from the psyllids that arrived to us late are still pending. Interestingly, we still have not had a positive psyllid since early July.
With harvest season upon us, it is worth remembering that our studies in Russet Burbank showed that ZC can develop during storage if infection occurs as late as two weeks before vine kill. Please consider this in your late-season IPM programs. More information on management can be found here: https://www.uidaho.edu/cals/potatoes/news/psyllid-management
To view the weekly data by site in the old spreadsheet format: https://tinyurl.com/potatopsyllid
Please visit the Idaho Pest Monitoring Dashboard, for graphical summaries of our psyllid captures and an archive of blog posts for this season: https://idahopestmonitoring.org/
Psyllid captures per field similar to last week
Potato All Locations
potato psyllid
Posted on: August 25, 2023 by Tasha Stanzak
This week we received traps from 35 of the 55 fields that we are monitoring. One field was vine killed and we are still waiting on traps from 19 sites. Many of these fields could not be entered earlier in the week so traps were shipped to us late. We captured a total of 30 psyllids across 10 fields. Four of the fields were in Canyon County; the remaining 6 fields were in Elmore, Gooding, and Twin Falls counties.
Total psyllid captures per field were similar to last week, though several of the fields still unaccounted for are sites where we’ve seen relatively high captures this season. Updated results will be posted on the sites (below) early next week, and we’ll send out another alert if anything unexpected is observed.
All psyllids tested from last week’s captures were negative for Lso, the bacterium associated with zebra chip disease (ZC). We have not had a positive psyllid since early July.
Nevertheless, we urge growers to have their IPM programs in place. More information on management can be found here: https://www.uidaho.edu/cals/potatoes/news/psyllid-management
To view the weekly data by site in the old spreadsheet format: https://tinyurl.com/potatopsyllid
Please visit the Idaho Pest Monitoring Dashboard, for graphical summaries of our psyllid captures and an archive of blog posts for this season: https://idahopestmonitoring.org/
Psyllid captures tick up slightly, but still relatively low
Potato All Locations
potato psyllid
Posted on: August 17, 2023 by Erik Wenninger
This week we received traps from 49 of the 55 fields that we are monitoring. We captured a total of 44 psyllids across 14 fields. Ten of the fields were in Canyon County; the remaining 4 fields were in Payette, Elmore, and Twin Falls counties.
Total psyllid captures ticked up slightly, at least in the Treasure Valley; however, captures were still relatively low compared to previous years. This is the time of year that we typically see captures increase, so this uptick is not surprising.
All psyllids tested from last week’s captures were negative for Lso, the bacterium associated with zebra chip disease (ZC); results are pending for seven psyllids that were shipped late. Although we saw relatively high prevalence of Lso in early samples, we have not had a positive psyllid since early July.
Nevertheless, we urge growers to have their IPM programs in place. More information on management can be found here: https://www.uidaho.edu/cals/potatoes/news/psyllid-management
To view the weekly data by site in the old spreadsheet format: https://tinyurl.com/potatopsyllid
Please visit the Idaho Pest Monitoring Dashboard, for graphical summaries of our psyllid captures and an archive of blog posts for this season: https://idahopestmonitoring.org/
Final Ag Talk Tuesday session for 2023 - August 15
All Crops All Locations
General announcement - all crops
Posted on: August 14, 2023 by Kasia Duellman
The final Ag Talk Tuesday session will be held tomorrow, August 15, at 11:00 AM (MT) - via Zoom.
Topics:
- Economics Outlook — Pat Hatzenbuehler
- Crop Insurance 101 — Bryan C. Ayers, Program Analyst, Risk Management Agency Education Division, USDA)
Registration is required. You can register here: https://uidaho.zoom.us/meeting/register/tZwoceuqpzgrHtcuo-JwYrywKfEBP_jNgMcE#/registration
More information on Ag Talk Tuesdays can be found on our website: https://www.uidaho.edu/extension/news/ag-talk-tuesday
» https://www.uidaho.edu/extension/news/ag-talk-tuesday
» https://uidaho.zoom.us/meeting/register/tZwoceuqpzgrHtcuo-JwYrywKfEBP_jNgMcE#/registration
2023 Idaho Association of Plant Protection
All Crops All Locations
Posted on: August 10, 2023 by Jeff Miller
Anybody interested in learning about plant diseases and pests important in Idaho is invited to the 2023 Idaho Association of Plant Protection annual meeting, November 1-2 in Rupert, ID.
Attached is the first announcement and call for participation in the IAPP. See details on the attached page. If you have any questions, please contact the chairs for this year:
Albert Adjesiwor, aadjesiwor@uidaho.edu
John Snelling, jsnelling@rogueseedproduction.com
Please share with any who may be interested.
Psyllid captures remain low; no new positives
Potato All Locations
potato psyllid
Posted on: August 10, 2023 by Erik Wenninger
This week we received traps from 50 of the 55 fields that we are monitoring. We captured a total of 30 psyllids across 12 fields. Seven of the fields were in Canyon County, the remaining 5 fields were in Payette, Owyhee, Elmore, and Twin Falls counties.
Total psyllid captures were similar to last week, and we continue to see quite low numbers this season.
All of the psyllids captured last week were negative for Lso, the bacterium associated with zebra chip disease (ZC). We still urge growers to have their IPM programs in place given the prevalence of Lso earlier in the season. More information on management can be found here: https://www.uidaho.edu/cals/potatoes/news/psyllid-management
To view the weekly data by site in the old spreadsheet format: https://tinyurl.com/potatopsyllid
Please visit the Idaho Pest Monitoring Dashboard, for graphical summaries of our psyllid captures and an archive of blog posts for this season: https://idahopestmonitoring.org/
IPM Field Days - Aberdeen and Parma
All Crops All Locations
General announcement - all crops
Posted on: August 9, 2023 by Kasia Duellman
Join us at the Aberdeen Research & Extension Center for a Potato IPM Field Day on Wednesday August 16, 2023. Registration begins at 8:30 AM. The tour starts at 9:00 AM and ends at Noon. Attendees are eligible for 1 ISDA pesticide credit and 3 CCA credits. A free lunch will be provided at the tour's conclusion.
Location:
University of Idaho - Aberdeen REC
1693 S 2700 W
Aberdeen, ID 83210
Following the Aberdeen Potato IPM Field Day, head over to Parma and Join University of Idaho Extension Specialists and Researchers on Thursday August 17, 2023 for IPM Field Day at Parma with registration beginning at 7:15 a.m. and Field Tour starting promptly at 8:00 a.m. until 10:30 a.m.
Location:
University of Idaho - Parma REC
29603 U of I Lane
Parma, ID 83660-6699
» https://webpages.uidaho.edu/extension-seed-potato/events.html
Psyllid captures still relatively low
Potato All Locations
potato psyllid
Posted on: August 3, 2023 by Tasha Stanzak
This week we received traps from 46 of the 55 fields that we are monitoring. We captured a total of 29 psyllids across 13 fields. Nine of the fields were in Canyon County, the remaining 4 fields were in Payette, Owyhee, Gooding, and Twin Falls counties.
Total psyllid captures were slightly higher than last week, but we continue to see quite low numbers this season.
All of the psyllids captured last week were negative for Lso, the bacterium associated with zebra chip disease (ZC). This is good news considering the prevalence of positive psyllids during early July, but we still urge growers to have their IPM programs in place. More information on management can be found here: https://www.uidaho.edu/cals/potatoes/news/psyllid-management
To view the weekly data by site in the old spreadsheet format: https://tinyurl.com/potatopsyllid
No new positive psyllids this week
Potato All Locations
potato psyllid
Posted on: July 28, 2023 by Erik Wenninger
This week we received traps from 53 of the 55 fields that we are monitoring. We captured a total of 21 psyllids across 9 fields. Six of the fields were in Canyon County, the remaining 3 fields were in Payette, Owyhee, and Twin Falls counties.
Total psyllid captures were slightly higher than last week, but we continue to see quite low numbers this season.
All of the psyllids captured last week were negative for Lso, the bacterium associated with zebra chip disease (ZC). This is good news considering the prevalence of positive psyllids the last two weeks, but we still urge growers to have their IPM programs in place. More information on management can be found here: https://www.uidaho.edu/cals/potatoes/news/psyllid-management
Please visit the Idaho Pest Monitoring Dashboard, for graphical summaries of our psyllid captures and an archive of blog posts for this season: https://idahopestmonitoring.org/
To view the weekly data by site in the old spreadsheet format: https://tinyurl.com/potatopsyllid
More Lso-positive psyllids
Potato All Locations
potato psyllid
Posted on: July 20, 2023 by Tasha Stanzak
This week we received traps from 46 of the 55 fields that we are monitoring. We captured a total of 10 psyllids across 4 fields. Three of the fields were in Canyon County and one was in Twin Falls County.
Total psyllid captures were similar to last week, and we continue to see relatively low numbers this season.
However, 12 of the 14 psyllids we captured last week were positive for Lso, the bacterium associated with zebra chip disease (ZC). In addition, one of the three psyllids from the previous week that was shipped late also tested positive. Thus, 15 of the 19 psyllids tested this season have been positive.
It is not unusual to see more Lso-positive psyllids early in the season, but this level of Lso is higher than we typically see. It is fortunate that psyllid numbers are quite low, but the high prevalence of Lso suggests that we should be vigilant. We strongly urge growers to have their IPM programs in place. More information on management can be found here: https://www.uidaho.edu/cals/potatoes/news/psyllid-management
Please visit the Idaho Pest Monitoring Dashboard, for graphical summaries of our psyllid captures and an archive of blog posts for this season: https://idahopestmonitoring.org/
To view the weekly data by site in the old spreadsheet format: https://tinyurl.com/potatopsyllid
Ag Talk Tuesday July 18 "Rocks and Spuds"
All Crops All Locations
Ag Talk Tuesday July 18, 2023
Posted on: July 17, 2023 by Pamela Hutchinson
Featured Topic:
July 18 — Rocks
and Spuds — Kamren
Koompin, Idaho grower/producer — Pamela J.S. Hutchinson (moderator)
Welcome
to the 2023 season of Ag Talk Tuesday, presented by University of
Idaho Extension every first and third Tuesday May-August, 11:00 AM to Noon (via Zoom).
Tomorrow's session will
feature Idaho grower Kamren Koompin's talk "Rocks and Spuds" following the usual crop updates.
Registration is required. For
more information and the registration link, please check out the Ag Talk Tuesday website:
https://www.uidaho.edu/extension/news/ag-talk-tuesday
You can also register for Ag Talk Tuesday by following this link:
https://uidaho.zoom.us/meeting/register/tZwoceuqpzgrHtcuo-JwYrywKfEBP_jNgMcE#/registration
If you miss the live sessions, videos are available on the University of Idaho College of Ag/Life Sciences YouTube channel: https://www.youtube.com/playlist?list=PL6g6ZYcM47s85ASnhBlMHbFMD-x-zAGt6
Remaining
Session Featured Topics and dates:
Aug. 1 — CALS Update
(speaker: Dean Michael Parrella)
Aug. 15 — Economics
Outlook (speaker: Pat Hatzenbuehler)
Hope you can attend
these live, online sessions (via Zoom).
» https://www.uidaho.edu/extension/news/ag-talk-tuesday
» https://uidaho.zoom.us/meeting/register/tZwoceuqpzgrHtcuo-JwYrywKfEBP_jNgMcE#/registration
First Lso-positive psyllid of the season
Potato All Locations
potato psyllid
Posted on: July 15, 2023 by Erik Wenninger
Apologies! This alert was posted on Friday, but an alert was not sent.
This week we received traps from all 55 fields that we are monitoring. We captured a total of 14 psyllids across 10 fields. Seven of the fields were in Canyon County; the remaining 3 fields were in Owyhee, Twin Falls, and Minidoka counties.
One of the psyllids we collected last week from Canyon County was positive for Lso, the bacterium associated with zebra chip disease (ZC). The other psyllids from last week were shipped to us late, so results are expected by Monday (and will be posted to the Idaho Pest Monitoring Dashboard, below). A positive psyllid this early in the season is somewhat concerning. ZC risk is in part a function of psyllid numbers and Lso incidence, so it is fortunate the psyllid numbers have been low so far. Nevertheless, we urge growers to watch psyllid captures closely and to have their IPM programs in place. More information on management can be found here: https://www.uidaho.edu/cals/potatoes/news/psyllid-management
Please visit our new site, the Idaho Pest Monitoring Dashboard, for graphical summaries of our psyllid captures for this season and the previous three seasons: https://idahopestmonitoring.org/
We will be posting and archiving our weekly updates on this site. In addition to the graphical summaries, you will be able to look back on all the weekly “blog” summaries for this year and easily compare captures among counties, regions, and years over 2020 to 2023.
To view the weekly data by site in the old spreadsheet format: https://tinyurl.com/potatopsyllid
» https://idahopestmonitoring.org/
» https://www.uidaho.edu/cals/potatoes/news/psyllid-management
2023 Miller Research Potato Pest Management Field Day
Potato All Locations
Posted on: July 11, 2023 by Jeff Miller
» https://millerresearch.com/event/2023-miller-research-potato-pest-management-field-day/
Want Pesticide Credits?
All Crops All Locations
Pesticide Credits
Posted on: July 10, 2023 by Kimberly Tate
Enroll in the University of Idaho (UI) Extension Pesticide Safety Education Program (PSEP) for the 2023 Summer Series Webinars (via Zoom; no camera/no account required). Each webinar is $10 per applicator. Completed webinar(s) receive multi-state pesticide credit(s). ISDA, ODA & WSDA credits available for completed webinar*. Note: ALL webinars are held at Mountain Daylight Time (MDT).
- Aug. 8 at 2 p.m. to 3 p.m. (MDT) — Desireè Wickwar: Turf insect management
- Aug. 15 at 2 p.m. to 3 p.m. (MDT) — Doug Finkelnburg: Seed bank dynamics for grassy weed control in agricultural systems
- Aug. 22 at 2 p.m. to 3 p.m. (MDT) — Dr. Pam Hutchinson & Dr. Albert Adjesiwor: Weather conditions and herbicide performance
*For pesticide credit: Pesticide applicators must answer questions within the webinar session. This requires individual computer and internet access for each user. Answers will be collected to confirm attendance was maintained for the entire webinar. Idaho State Department of Agriculture (ISDA), Oregon Department of Agriculture (ODA) and Washington State Department of Agriculture (WSDA) credits approved. Please register with your state license number(s).
Register Today: https://marketplace.uidaho.edu/C20272_ustores/web/store_main.jsp?STOREID=53&SINGLESTORE=true
Need more information? Contact Kimberly Tate, University of Idaho Extension PSEP Sr. Instructor by phone (208) 364-4581 or email ktate@uidaho.edu.
» UI Extension Pesticide Safety Education Summer Series Poster
2023 Potato psyllid monitoring program underway in Idaho
Potato All Locations
potato psyllid
Posted on: July 7, 2023 by Tasha Stanzak
The University of Idaho and our crop consultant collaborators across the state are once again monitoring for potato psyllids, zebra chip disease (ZC), and liberibacter (Lso), the bacterium associated with ZC. The monitoring program covers commercial potato fields throughout southern Idaho and is funded in part by the Idaho Potato Commission and generous in-kind contributions by our cooperators.
Our official monitoring season began with wide deployment of traps last week and will continue for 10 to 12 weeks. We have 55 fields across the state this year, using 4 sticky traps per field at all sites.
This week we received traps from 52 of the 55 fields that we are monitoring. We captured a total of four psyllids across three fields, all in Canyon County. In addition, a limited number of fields was monitored prior to the official start of the monitoring program. We captured one psyllid in a field in Canyon County last week and zero so far over four weeks of monitoring at the Kimberly Research & Extension Center.
It is still early, but thus far we are seeing relatively low numbers of psyllids, similar to the numbers we observed in 2022.
We expect to have results on Lso incidence next week.
Please visit our new site, the Idaho Pest Monitoring Dashboard, for graphical summaries of our psyllid captures for this season and the previous three seasons: https://idahopestmonitoring.org/
We will be posting and archiving our weekly updates on this site. So in addition to the graphical summaries, you will be able to look back on all the weekly “blog” summaries and easily compare this year’s captures to previous years.
Ag Talk Tuesday - June 20, 2023 session
All Crops All Locations
General announcment - all crops
Posted on: June 19, 2023 by Juliet Marshall
The ATT is very pleased to announce that tomorrow’s special guests include commission members of the Idaho Wine Commission! Join us for Mark Pasculli and Jake Cragin’s perspective on grape production in Idaho and the role the Idaho Wine Commission plays in the grape and wine industries!
The Ag Talk Tuesday format starts with crop updates from extension specialists and industry partners at 11 AM Mountain (10 AM Pacific) lasting 20-30 minutes, followed by an introduction to our highlighted speakers. By that time, the irrigation pipes should have been moved, the cows fed, and morning chores complete - perfect timing to jump online prior to lunch!
More information can be found on the Ag Talk Tuesday website: https://www.uidaho.edu/extension/news/ag-talk-tuesday
Registration is required. To register, copy and paste this link in your web browser: https://uidaho.zoom.us/meeting/register/tZwoceuqpzgrHtcuo-JwYrywKfEBP_jNgMcE#/registration
See you June 20 - 11:00 AM!
Courtesy of your Ag Talk Tuesday coordinators:
Juliet Marshall
Kasia Duellman
Doug Finkelnburg
Pamela J.S. Hutchinson
Olga Walsh
» https://www.uidaho.edu/extension/news/ag-talk-tuesday
» https://uidaho.zoom.us/meeting/register/tZwoceuqpzgrHtcuo-JwYrywKfEBP_jNgMcE#/registration
2023 Ag Talk Tuesday - June 6 session
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Posted on: June 5, 2023 by Kasia Duellman
Welcome to the 2023 season of Ag Talk Tuesday, presented by University of Idaho Extension every first and third Tuesday May-August, 11:00 AM to Noon (via Zoom).
» https://www.uidaho.edu/extension/news/ag-talk-tuesday
» https://www.youtube.com/playlist?list=PL6g6ZYcM47s85ASnhBlMHbFMD-x-zAGt6
2023 Parma Field Day Tour
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all
Posted on: May 31, 2023 by Ronda Hirnyck
The Agricultural Field Day Tour will be held at the University of Idaho Parma Research and Extension Center Wednesday June 21, 2023.
Registration: 8:00 AM
Field Tour and Speaker Presentations: 8:30 AM - 11:15 AM
Tour includes: Soilborne diseases of crops, cover crops, cereal nurseries, straw mulch, temperature/irrigation on onion bulb rots and the new experimental hop yard.
Pesticide recertification credits have been applied for with ISDA, ODA and CCA.
For further information please contact:
James Woodhall jwoodhall@uidaho.edu
Olga Walsh owalsh@uidaho.edu
Brad Stokes bstokes@uidaho.edu
REMINDER! 2023 Snake River Weed Control Tour--Malheur Experiment Station
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Weeds
Posted on: May 31, 2023 by Ronda Hirnyck
It is that time of the year when we embark on field tours to learn
about research studies being conducted to advance our knowledge of weed control
in various crops. The 2023 Snake River Weed Research Tour at the Malheur
Experiment Station, Ontario, OR is planned as follows.
Date: June 15, 2023
Event: The 2023 Snake River Weed
Control Research Tour - Malheur Experiment Station
Venue: Malheur Experiment
Station, 595 Onion Ave, Ontario, OR 97914
Registration: 8:00 to 8:30AM
Tour: 8:30 to 12:00 PM MT
Complementary lunch will
follow as soon as tour is completed.
Pesticide Recertification Credits
Idaho
– 3 credits
Oregon
– 3 credits
Featured Weed Studies
First Stop:
1.
Herbicides for weed control in
dry bulb onion
Second Stop:
1.
Herbicides for weed control in
potato
2.
Evaluation of adjuvants used
with Roundup (glyphosate) to manage weeds in sugar beet
3.
Timing of first irrigation to
activate Sequence and Nortron herbicides for effective management of weeds in
sugar beet
4.
Herbicides for wild oats and
kochia control in winter wheat
Please save a date and share this notice with those on your
mailing list. We look forward to seeing you on Thursday, June 15, 2023 at the Malheur Experiment Station.
Joel Felix
Forecast is for cloddy with a chance of weeds
Potato All Locations
Weed control in cloddy fields
Posted on: May 19, 2023 by Pamela Hutchinson
All will agree that weather conditions spring 2023 have been
unusual: wide ranging snow cover, snow melt runoff and water pooling in fields,
and short bursts of intense wind and rain. One of the impacts on soil conditions
after potato growers were finally able to get into the fields for tillage and planting
has been the formation of clods.
What happens: Some preemergence herbicides applied
and sprinkler incorporated, or even chemigated, might not get below the clods,
resulting in patches of weeds emerging though the untreated soil.
What can be done: Questions have arisen about what
can be done proactively and the answer can be keeping herbicide solubility in
mind when designing a tank mixture. A more soluble herbicide might move through
and/or around ending up below clods resulting in better coverage. than a
herbicide with relatively less solubility.
What you need to know: In general, with the medium-
to coarse-textured, moderate organic matter content, neutral to high pH soils
in the PNW, potato herbicide solubility ranging from high to low: Matrix (rimsulfuron)
>> metribuzin, Outlook (dimethenamid-p) > Dual Magnum (s-metolachlor),
Eptam (EPTC) >> Linex (linuron), Reflex (fomesafen), Zidua
(pyroxasulfone) >> Chateau (flumioxazin), Sonalan (ethalfluralin),
Treflan (trifluralin), and Prowl H2O (pendimethalin). NOTE: Sulfentrazone
solubility is similar to that of Outlook unless soil pH is above 7.5, then it
is more soluble than the any of the other herbicides. Use of Trade Names is
not an endorsement for one product over another with the same active ingredient.
Put it together: Design a tank mixture for the weed
species in a field with inclusion of soluble herbicides that can move below the
clods for the best coverage possible.
Example: Control hairy nightshade, common
lambsquarters, and green foxtail in a cloddy field. Tank mix soluble Matrix or
Outlook for h. nightshade + soluble metribuzin for c. lambsquarters + moderately
soluble Linex for both** of the broadleaves. All provide green foxtail control.
Get out the crystal ball and the umbrella: If “unusual”
amounts of rainfall occur within 1 or 2 weeks after application and incorporation,
the “soluble” herbicides could move too far below the weed seed germination
zone.
Bulletin 950 https://www.uidaho.edu/extension/publications/bul/bul950
of Action (SOA) controlling the same weed species (“overlapping” control) is highly
recommended for herbicide resistance management. In the example given, Matrix, Outlook,
metribuzin, and Linex all have different SOAs. Without Linex, there is no
overlapping SOA for hairy nightshade and no overlapping SOA for common
lambsquarters. Linex as the third partner in the mix controls c. lambsquarters and has activity on h. nightshade. As a
result, there is more than one SOA on both weeds. The overlap is necessary for
herbicide resistance management. That one-in-a-million plant in the population naturally
tolerant to one SOA does not survive because the other SOA in the tank mixture will
provide control. If the tolerant plant survives and produces seeds because
overlapping herbicide SOA are not tank mixed and/or not rotated, then resistance
in the population could develop over time if only the one herbicide SOA is used.
Examples of Potato
Herbicide Sites of Action and weeds controlled - herbicides within [ ]
have the same SOA:
Hairy nightshade - Matrix, [Outlook/Dual Magnum/Zidua],
Eptam, [Reflex/Chateau], Linex;
Common lambsquarters – metribuzin, [Prowl H2O/Sonalan/Treflan],
Linex;
Redroot pigweed – all of these herbicides except metribuzin
when the population in a field is resistant to metribuzin;
Green foxtail – all of these herbicides.
then getting satisfactory SOA overlap is challenging. Linex seems to be the
only herbicide in that situation that can provide overlapping SOA for hairy
nightshade AND overlapping SOA for common lambsquarters.
Ag Talk Tuesdays resume in 2023
All Crops All Locations
Posted on: April 17, 2023 by Kasia Duellman
Mark your calendars for every first and third Tuesday in May, June, July and August, 11:00 AM to Noon for Ag Talk Tuesday - live, online sessions (via Zoom).
Presented by University of Idaho Extension, the 2023 sessions of Ag Talk Tuesday continue with the second session of the season, this Tuesday, May 16. Sessions start at 11:00 AM with crop updates (everyone is invited to contribute). Following crop updates, enjoy a Featured Topic presented by a Guest Speaker. For this second session, we have invited Albert Adjesiwor with University of Idaho to discuss the Pacific Northwest Herbicide Resistance
Initiative and Idaho.
» https://www.uidaho.edu/extension/news/ag-talk-tuesday
» https://uidaho.zoom.us/meeting/register/tZwoceuqpzgrHtcuo-JwYrywKfEBP_jNgMcE#/registration
Lions and Tigers and Bears? Not quite, but Snow mold, dwarf smut and voles...
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Snow molds, dwarf bunt and voles
Posted on: March 30, 2023 by Juliet Marshall
Spring is…. Here? According to the calendar, yes. But
looking out at additional snow this morning in southeast Idaho and reviewing
the extended forecast, mother nature has stubbornly dug in her heels on winter.
The implications are that winter cereals are likely to be at
risk for damage and spring grain will never get planted. Or maybe it just seems
that way.
The extra moisture we are receiving with these consistent
spring snows and rain events makes so many of us relieved and happy. Our
subsoil moisture has been replenished and the reservoir system is recharging.
What a stroke of fortune!
Some areas in southeast Idaho haven’t seen bare ground since
early November. A mild fall facilitated the establishment and early growth of
winter wheat until cold temperatures rapidly shut down the season. However, what
is the outlook for the crop health of winter grain given how long we’ve had
snow cover?
Like any “good scientist”, I will say – That depends. When
we have long periods of time where snow covers the ground, two diseases can
become a major problem: snow mold and dwarf bunt. Snow can insulate the ground,
keeping the surface moist, preventing the soil from freezing and allowing these
cold-tolerant fungi to infect and grow on winter wheat. While difenoconazole seed
treatments are effective against dwarf bunt on susceptible varieties, there is
very little fungicide protection that is effective for snow mold when the snow
coverage exceeds three months – or in this year, up to five months!
Several years ago, I participated in a study that examined
the genetics of snow mold resistance up at the University of Idaho Tetonia
R&E Center. There were varieties that had a much higher tolerance for
fungal attack based on their genetic traits – the varieties that accumulated
more complex carbohydrates were less susceptible to being killed by snow mold
fungi. That meant that varieties when planted early enough to establish a
strong crown and high carbohydrate reserves survived long periods of time under
snow where there is very little sunlight. That was quite a while ago, and those
tolerant varieties are no longer grown.
Snow mold fungi feed off leaves, slowly depleting the
carbohydrates (or complex sugars) that plants need to survive – kind of like a
slow death by a thousand paper cuts. The longer the time spent under the snow,
the less the likelihood that the plants can survive. One of the stories I used
to hear was that growers would have fly ash flown on the fields to increase
rapid melting of the snow. That would require sunny days without additional
snow accumulation. That hasn’t happened this year. However, wheat can make a
recovery as long as the crown survives. After snow melt, check to see if the
crowns are white and firm. If they are soft and brown, then the plant is dead.
To add insult to injury, a healthy wheat stand under long
periods of snow cover allows voles to proliferate like mad! While worse in alfalfa,
stands can be significantly reduced in winter wheat as well. See the Feb 8
article written for “Catching up with CALS” with strategies and advice by
Danielle Gunn and Joseph Sagers: https://www.uidaho.edu/news/news-articles/colleges/cals/2023/020823-vexed-voles
As I head further south from Idaho Falls, I see large areas
of water ponding in low areas of the fields. The freeze-thawing cycles that
occur with substantial water saturation reduces plant survival as plants suffer
from frost-heaving, which rips and severs roots, and from anoxia – no oxygen
under flooded areas.
My best advice for spring grain, is to plant as soon as you
can (and not to bury the tractor in the low spots!) and to be sure the spring
grain is protected with fungicides that are effective against Pythium. These
fungal-like pathogens love cool and wet conditions and require specialized
“fungicides” that include metalaxyl. With the prevalence of metalaxyl-resistant
Pythium in the area, you may also need to consider the relatively new products
ethaboxam (Intego from Valent) and picarbutrazox (Vayantis from Syngenta).
In the meantime, we sit and wait. Good luck.
» https://www.uidaho.edu/extension/cereals/scseidaho
» https://www.uidaho.edu/news/news-articles/colleges/cals/2023/020823-vexed-voles
Need to study for a pesticide exam?
All Crops All Locations
Posted on: March 23, 2023 by Kimberly Tate
The UI Extension Pesticide Safety Education Program will be offering pre-license trainings ONLINE, via Zoom. This 4-day class is designed to be both with live instructors and work on your own, at your own pace. Students are required to have a computer or smart tablet with internet access. You will learn core pesticide safety practices and prepare for the following Idaho State Department of Agriculture pesticide exams; Private Applicator, Professional Applicator: Core Competency; Agricultural Herbicide; Agricultural Insecticide; Ornamental Herbicide; Ornamental Insecticide; General Pest; Right of Way; Rodent Control; and Chemigation.
Classes meet twice daily Monday through Thursday. Our next training session is scheduled for April 3-7, 2023, from 9-11:30 am (MST) and 1:30-4 pm (MST). Registration closes, April 3, 2023 at 8 am (MST).
Enrollment includes access to 12-eLearning modules and educational materials until May 15, 2023. The class fee $50 per student.
To register, visit our Marketplace website link.
» https://marketplace.uidaho.edu/C20272_ustores/web/store_main.jsp?STOREID=53&SINGLESTORE=true
The Second Annual Organic Agriculture Workshop Thursday, March 2nd
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Posted on: February 28, 2023 by Ariel Agenbroad
The Second Annual Organic Agriculture Workshop
hosted by the University of Idaho on Thursday, March 2nd from
10:00-1:30 PM MST.
Registration (and lunch) are free! If
you are planning to attend in person, please register by February 28th.
You can register at: https://uidaho.co1.qualtrics.com/jfe/form/SV_0ApO2kf6L7Iozbw
This is an IN-PERSON workshop at the University of Idaho
Caldwell Research and Extension Center (1904 E. Chicago Street, Suite AB
Caldwell, ID 83605).
There is also an option to attend virtually. Those
attending in-person will receive a free lunch. There is also an opportunity to
tour Peaceful Belly Farm, which is located about 15 minutes from the meeting
location, and hear about the ways that they are honoring and fostering a
collaboration with nature to build ecological resilience and community on their
farm.
Workshop
Details:
- Hear
important updates from ISDA and learn about the exciting new national
Transition to Organics Partnership Program (TOPP) - Learn
more about the cryptic and amazing world of soil biology - Learn
more about how your management practices influence earthworms and
nematodes - Share
experiences and knowledge to better understand the challenges and
opportunities with soil fauna assessments
Registration (and lunch) are free! If
you are planning to attend in person, please register by February 28th.
You can register at: https://uidaho.co1.qualtrics.com/jfe/form/SV_0ApO2kf6L7Iozbw
» https://uidaho.co1.qualtrics.com/jfe/form/SV_0ApO2kf6L7Iozbw
Miller Research Winter 2023 Potato Disease Management Seminar
Potato All Locations
Posted on: January 12, 2023 by Jeff Miller
Miller Research will be holding its annual Potato Pest
Management Meeting in person on February 16, 2023, at the Historic Wilson
Theater in Rupert, ID. The meeting will run from 9:00 am to 12:15 pm with a 15-minute
break at 10:30 am. CCA credits and ID, WA, and OR pesticide recertification
credits have been requested for the meeting.
For those not able to attend in person, a virtual option
will be available. If you want to participate by Zoom, contact Cheryn Suarez
(cheryn@millerresearch.com) after registration and she will
send you the link to attend. Virtual attendees will need to answer questions on
Zoom to verify participation. Thus, each person desiring credits needs to be
logged in and stay logged in for the duration of the meeting. Contact us if you
need to make other arrangements.
Registration is $20 to cover the cost of the meeting.
Additional proceeds will be donated to the local 4-H program.
The agenda is in the attached file.
» https://millerresearch.com/event/miller-research-winter-2023-potato-disease-management-seminar/
PNW Pest Alert Network Survey
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PNW Pest Alert Network Survey
Posted on: December 20, 2022 by Ruth Givens
Ruth Givens and Ronda Hirnyck from the University of Idaho Extension are conducting a research study. The purpose of the research is to evaluate the effectiveness of the PNW Pest Alert Network. You are being asked to participate in this study because you are a subscriber to thePNW Pest Alert Network alerts.
Your participation will involve completing a voluntary survey which will provide feedback to the principal investigators. The survey should take about 3 minutes to complete. The survey includes questions such as indicate how you have used the information in the past year? How did you access the PNW Pest Alert Network alerts? How useful were the landscape and garden alerts? Your involvement in the study is voluntary, and you may choose not to participate. You can refuse to answer any of the questions at any time. There are no names or identifying information associated with your responses. There are no known risks in this study, but some individuals may experience discomfort or loss of privacy when answering questions. Data will be housed on a password protected server and deleted upon completion of the study.
The findings from this project will provide information on providing better outreach programming to control landscape and garden pests. If published, results will be presented in summary form only.
Special Incentive: Surveys completed by January 17 will be entered into a drawing for one of three $75 certificates to Texas Roadhouse. Three lucky winners will be announced on the website and the gift cards will be sent out later in January.
If you have any questions about this research project, please feel free to call Ruth Givens at 208-459-6003. By submitting this survey, you certify that you are at least 18 years of age and agree to participate in the above described research study.
Start Survey Here
UI Extension PSEP Recertification Webinar Series
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Posted on: October 26, 2022 by Kimberly Tate
Need Pesticide Credits?
Join the University of Idaho (UI) Extension Pesticide Safety Education Program for the 2022 Fall Recertification Webinar Series via Zoom (no account/camera needed). Each webinar is $10 per applicator. Completed webinars receive 1 Idaho Department of Agriculture pesticide credit.
Mark your calendar for the following webinar topics and their corresponding dates/times:
- Nov. 1 from 10–11 a.m. (MST): Control of Commensal Rodents on Farms and Ranches in Idaho
- Nov. 8 from 10–11 a.m. (MST): Pesticide Labels: What to know for successful pesticide applications
- Nov. 15 from 10–11 a.m. (MST): Russian Olive Management
- Nov. 29 from 10–11 a.m. (MST): Using UI Extension Tools for Pest Management
- Dec. 6 from 10–11 a.m. (MST): Herbicide Resistant Weeds in Idaho
- Dec. 13 from 10–11 a.m. (MST): Recent Invasive Insects in Idaho
For more information contact UI Extension Instructor, Kimberly Tate at (208) 364-4581 or email ktate@uidaho.edu.
» https://marketplace.uidaho.edu/C20272_ustores/web/store_main.jsp?STOREID=53&SINGLESTORE=true
» UI Extension PSEP 2022 Fall Recertification Webinar Series Poster
Ag Talk Report newsletter - October 2022 issue now available
All Crops All Locations
Posted on: October 20, 2022 by Kasia Duellman
The October 2022 issue of the Ag Talk Report newsletter is now available as an attached PDF file.
This issue will soon be available online at our website, where you can also find archived issues: https://www.uidaho.edu/extension/news/ag-talk-tuesday
Idaho Association of Plant Protection 2022 Annual Meeting
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Posted on: October 19, 2022 by Jeff Miller
You are invited to attend the 2022 annual meeting of
the Idaho Association of Plant Protection in Burley, ID, at the Best Western
Inn & Convention Center. The conference will cover all aspects of plant
protection including entomology, nematology, weed science, and plant pathology. The agenda is attached. A total of 6 Certified Crop Advisor (CCA, 5 PM and 1 CM) and 6 Pesticide Recertification credits (ISDA) have been awarded.
Registration begins at 12:30 p.m. on Wednesday and the
program will begin at 1:00 p.m. Registration costs $30.00 and can be made by check or cash at
the door. Credit card payments will be accepted at
the door but will be assessed a 6% processing fee. If you need to pay by credit card ahead of time, please contact Jeff Miller at jeff@millerresearch.com. Online registrations will
close Tuesday, November 1.
Hotel reservations must be made on your own. Special
hotel rates have been negotiated for the participants: $82.00 per night for the Burley Inn (www.burleyinn.com
or 208-678-3501) and $62.00 for the Budget Motel nearby (www.burleybudgetmotel.com
or 208-678-2200).
If you have questions, please contact the co-chairs
for this year: Bill Buhrig (william.buhrig@simplot.com, 208-954-0576) or Albert Adjesiwor (aadjesiwor@uidaho.edu, 208-423-6616).
» https://millerresearch.com/event/2022-idaho-association-of-plant-protection/
final report of 2022 Idaho potato psyllid monitoring
Potato All Locations
potato psyllid
Posted on: September 16, 2022 by Erik Wenninger
This is the final report of the 2022 potato psyllid / Lso monitoring season.
The two psyllids captured last week tested negative for Lso, the bacterium associated with zebra chip disease (ZC).
It was an interesting year with very low psyllid captures overall, but relatively high incidence of Lso. About 22% of all psyllids tested positive for Lso compared to around 1% in most recent years. It is too soon to tell what this low psyllid / high Lso season means for ZC in tubers at harvest. Our studies in Russet Burbank showed that ZC can develop during storage if infection occurs as late as two weeks before vine kill. Please consider this in your late-season IPM programs. Risk could be mitigated by processing tubers from fields at higher risk sooner rather than later.
Thanks again to all of our cooperators!
With the monitoring season behind us, we urge you to kick the proverbial tires of our new Idaho Pest Monitoring site: https://idahopestmonitoring.org/
Please check it out and send us any feedback that we may use to improve the site. Our eventual goal is to make this a one-stop shop for all Idaho pest monitoring programs, but this is obviously still a work in progress.
More information can be found here: http://www.uidaho.edu/cals/potatoes/news
--Click on the link under “Updated weekly reports” for details on trap captures.
--Click on the “Psyllid Management” link on the left panel for information on psyllid and zebra chip biology and management.
To view contour maps that illustrate relative psyllid abundance across the landscape, you can set up a free account here: https://potatoes.decisionaid.systems/ Updated maps will be generated every Friday morning.
2022 Idaho Association of Plant Protection - Call for Presentations
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Posted on: September 13, 2022 by Jeff Miller
This is an invitation and call for papers for the 2022 annual meeting of the Idaho Association of Plant Protection in Burley, ID, at the Best Western Inn & Convention Center. The conference will cover all aspects of plant protection including entomology, nematology, weed science, and plant pathology.
Please consider contributing research results, observations, unusual pest and disease occurrences and topics which could be discussed as a group, etc. to the meeting. Each presentation will be allotted at least a 20-minute time slot. A final program will be advertised in October. Registration begins at 12:30 p.m. on Wednesday and the program will begin at 1:00 p.m. Registration costs $30.00 and can be made by check or cash. Credit card payments will be available online or will be accepted at the door but will be assessed a 6% processing fee. Online registrations will close Tuesday, November 1. Certified Crop Advisor (CCA) and Pesticide Recertification credits (ISDA) will be available.
Hotel reservations must be made on your own. Special hotel rates have been negotiated for the participants: $82.00 per night for the Burley Inn (www.burleyinn.com or 208-678-3501) and $62.00 for the Budget Motel nearby (www.burleybudgetmotel.com or 208-678-2200).
Please reply by email or complete and return the attached sheet. If you are not attending this meeting but would like to be notified of future meetings, please send us your updated contact information. Responses can be sent to:
Bill Buhrig (william.buhrig@simplot.com)
Albert Adjesiwor (aadjesiwor@uidaho.edu)
psyllid monitoring update - 8 Sep 2022
All Crops All Locations
potato psyllid
Posted on: September 8, 2022 by Erik Wenninger
This week we received traps from 37 of the 72 fields that we had been monitoring this year. Thirteen fields have been vine killed and were not monitored. We found a total of only 2 psyllids in 1 (3%) of the 37 fields. Traps from several fields have yet to be returned to us and these results will be added to the detailed spreadsheet when we receive them.
The two psyllids captured this week were from a field in Canyon County.
None of the psyllids collected last week tested positive for Lso, the bacterium associated with zebra chip disease (ZC).
Psyllid captures continue to be especially low this week, and thankfully we’ve been seeing less and less Lso in recent weeks.
This week’s collection of traps represents the end of the official monitoring season. Next week we will post Lso results as well as a season wrap up.
In addition to the regular links (below) with details on trap captures over the season, we are developing a new Idaho Pest Monitoring site that includes graphical summaries of our psyllid captures for this season and the previous two seasons: https://idahopestmonitoring.org/
Please click around on the Potato Psyllid / Zebra Chip Monitoring link and send us any feedback that we may use to improve the site. Our eventual goal is to make this a one-stop shop for all Idaho pest monitoring programs, but you can see that this is still a work in progress.
More information can be found here: http://www.uidaho.edu/cals/potatoes/news
--Click on the link under “Updated weekly reports” for details on trap captures.
--Click on the “Psyllid Management” link on the left panel for information on psyllid and zebra chip biology and management.
psyllid monitoring update - 1 Sep 2022
Potato All Locations
potato psyllid
Posted on: September 1, 2022 by Erik Wenninger
This week we received traps from 57 of the 72 fields that we are monitoring this year. Four fields have been vine killed and were not monitored. We found a total of only 5 psyllids across 5 (9%) of the 57 fields observed.
Psyllids were captured in the following counties: Canyon (2 fields), Elmore (1 field), and Twin Falls (2 fields).
None of the psyllids collected last week tested positive for Lso, the bacterium associated with zebra chip disease (ZC).
Psyllid captures were especially low this week, and thankfully we’ve been seeing less and less Lso in recent weeks. With harvest season upon us, it is worth remembering that our studies in Russet Burbank showed that ZC can develop during storage if infection occurs as late as two weeks before vine kill. Please consider this in your late-season IPM programs. Risk could be mitigated by processing tubers from fields at higher risk sooner rather than later.
In addition to the regular links (below) with details on trap captures over the season, we are developing a new Idaho Pest Monitoring site that includes graphical summaries of our psyllid captures for this season and the previous two seasons: https://idahopestmonitoring.org/
Please click around on the Potato Psyllid / Zebra Chip Monitoring link and send us any feedback that we may use to improve the site. Our eventual goal is to make this a one-stop shop for all Idaho pest monitoring programs, but you can see that this is still a work in progress.
More information can be found here: http://www.uidaho.edu/cals/potatoes/news
--Click on the link under “Updated weekly reports” for details on trap captures.
--Click on the “Psyllid Management” link on the left panel for information on psyllid and zebra chip biology and management.
To view contour maps that illustrate relative psyllid abundance across the landscape, you can set up a free account here: https://potatoes.decisionaid.systems/ Updated maps will be generated every Friday morning.
» https://idahopestmonitoring.org/
psyllid monitoring update, 26th Aug 2022
Potato All Locations
potato psyllid
Posted on: August 26, 2022 by Erik Wenninger
This week we received traps from 61 of the 72 fields that we are monitoring this year. Two fields have been vine killed and were not monitored; we are still waiting to receive traps from 9 fields in the Treasure Valley. We found a total of 16 psyllids across 10 (16%) of the 61 fields observed.
Psyllids were captured in the following counties: Canyon (2 fields), Gooding (1 field), Twin Falls (3 fields), Cassia (2 fields), and Minidoka (2 fields).
Two of the psyllids collected last week tested positive for Lso, the bacterium associated with zebra chip disease (ZC). One was from a field in Canyon County and one from a field in Minidoka County.
We continue to see very low captures of psyllids relative to previous years and numbers are perhaps even lower this week than last week. However, we have also seen relatively high incidence of Lso, especially during previous weeks. With harvest season upon us, it is worth remembering that our studies in Russet Burbank showed that ZC can develop during storage if infection occurs as late as two weeks before vine kill. Please consider this in your late-season IPM programs. Risk could be mitigated by processing tuber from fields at higher risk sooner rather than later.
In addition to the regular links (below) with details on trap captures over the season, we are developing a new Idaho Pest Monitoring site that includes graphical summaries of our psyllid captures for this season and the previous two seasons: https://idahopestmonitoring.org/
Please click around on the Potato Psyllid / Zebra Chip Monitoring link and send us any feedback that we may use to improve the site. Our eventual goal is to make this a one-stop shop for all Idaho pest monitoring programs, but you can see that this is still a work in progress.
More information can be found here: http://www.uidaho.edu/cals/potatoes/news
--Click on the link under “Updated weekly reports” for details on trap captures.
--Click on the “Psyllid Management” link on the left panel for information on psyllid and zebra chip biology and management.
To view contour maps that illustrate relative psyllid abundance across the landscape, you can set up a free account here: https://potatoes.decisionaid.systems/ Updated maps will be generated every Friday morning.
psyllid monitoring update, Aug 18, 2022
Potato All Locations
potato psyllid
Posted on: August 18, 2022 by Erik Wenninger
This week we received traps from 68 of the 72 fields that we are monitoring this year. We found a total of 35 psyllids across 18 (27%) of the 68 fields observed.
Psyllids were captured in the following counties: Canyon (4 fields), Payette (1 field), Gooding (1 field), Twin Falls (4 fields), Cassia (5 fields), and Minidoka (3 fields).
Thankfully, none of the psyllids collected last week tested positive for Lso, the bacterium associated with zebra chip disease (ZC).
Psyllid captures are increasing as they always seem to do late in the season, though we continue to see very low captures of psyllids relative to previous years. However, we have also seen relatively high incidence of Lso during previous weeks. Most captures this week were from the eastern Magic Valley and western Treasure Valley, with no captures recorded this week from eastern Idaho. We urge growers to watch psyllid captures and Lso incidence closely and to have their IPM programs in place.
In addition to the regular links (below) with details on trap captures over the season, we are developing a new Idaho Pest Monitoring site that includes graphical summaries of our psyllid captures for this season and the previous two seasons: https://idahopestmonitoring.org/
Please click around on the Potato Psyllid / Zebra Chip Monitoring link and send us any feedback that we may use to improve the site. Our eventual goal is to make this a one-stop shop for all Idaho pest monitoring programs, but you can see that this is still a work in progress.
More information can be found here: http://www.uidaho.edu/cals/potatoes/news
--Click on the link under “Updated weekly reports” for details on trap captures.
--Click on the “Psyllid Management” link on the left panel for information on psyllid and zebra chip biology and management.
To view contour maps that illustrate relative psyllid abundance across the landscape, you can set up a free account here: https://potatoes.decisionaid.systems/ Updated maps will be generated every Friday morning.
Farm Input Cost Update from Xiaoli Etienne and Pat Hatzenbuehler - You Missed a Great Ag Talk Tuesday!
All Crops All Locations
Input Costs, Inflation and Interest Rates - Lions and Tigers and Bears - OH MY!
Posted on: August 16, 2022 by Juliet Marshall
Aug. 16 — Farm input cost update: A review of global, national and Idaho data —
U of I Patrick Hatzenbuehler, Assistant Professor & Extension
specialist and Xiaoli Etienne, Associate Professor & Idaho Wheat
Commission Endowed Chair in Commodity Risk Management, presented at
today's Ag Talk Tuesday, the last ATT of the 2022 Season.
To see recordings of this and previous Ag Talk Tuesday sessions, visit our page: https://www.uidaho.edu/extension/news/ag-talk-tuesday
And click on the Ag Talk Tuesday Video Playlist
https://www.youtube.com/playlist?list=PL6g6ZYcM47s85ASnhBlMHbFMD-x-zAGt6
» https://www.uidaho.edu/extension/news/ag-talk-tuesday
» https://www.youtube.com/playlist?list=PL6g6ZYcM47s85ASnhBlMHbFMD-x-zAGt6
Psyllid Captures
Potato All Locations
potato psyllid
Posted on: August 11, 2022 by Tasha Stanzak
This week we received traps from 70 of the 72 fields that we are monitoring this year. We found a total of 29 psyllids across 14 (20%) of the 70 fields observed.
Psyllids were captured in the following counties: Canyon (4 fields), Payette (1 field), Elmore (1 field), Jerome (1 field), Twin Falls (3 fields), Cassia (1 field), and Minidoka (3 fields).
Interestingly, 9 of the 18 psyllids collected last week tested positive for Lso, the bacterium associated with zebra chip disease (ZC). Those positive psyllids were found in Canyon, Power, Cassia, and Twin Falls counties.
We continue to see low captures of psyllids this season, but relatively high incidence of Lso. We urge growers to watch psyllid captures and Lso incidence closely and to have their IPM programs in place.
More information can be found here: http://www.uidaho.edu/cals/potatoes/news
--Click on the link under “Updated weekly reports” for details on trap captures.
--Click on the “Psyllid Management” link on the left panel for information on psyllid and zebra chip biology and management.
To view contour maps that illustrate relative psyllid abundance across the landscape, you can set up a free account here: https://potatoes.decisionaid.systems/ Updated maps will be generated every Friday morning.
University of Idaho, Parma R and E Center Field Day
All Crops All Locations
Posted on: August 5, 2022 by Jerry Neufeld
The University of Idaho Parma Research and Extension Center
is hosting a Field Day on August 18 in the morning. Click on the pdf below for more information.
more Lso-positive psyllids found
Potato All Locations
potato psyllid
Posted on: August 4, 2022 by Erik Wenninger
This week we received traps from 68 of the 72 fields that we are monitoring this year. We found a total of 18 psyllids across 12 (18%) of the 68 fields observed.
Psyllids were captured in the following counties: Canyon (5 fields), Payette (1 field), Jerome (2 fields), Twin Falls (1 field), Cassia (1 field), Minidoka (1 field), and Power (1 field).
Interestingly, 14 of the 17 psyllids collected last week tested positive for Lso, the bacterium associated with zebra chip disease (ZC). Positive psyllids were found in all counties in which we recorded psyllid captures last week.
We continue to see low captures of psyllids this season, but relatively high incidence of Lso. We urge growers to watch psyllid captures and Lso incidence closely and to have their IPM programs in place.
More information can be found here: http://www.uidaho.edu/cals/potatoes/news
--Click on the link under “Updated weekly reports” for details on trap captures.
--Click on the “Psyllid Management” link on the left panel for information on psyllid and zebra chip biology and management.
To view contour maps that illustrate relative psyllid abundance across the landscape, you can set up a free account here: https://potatoes.decisionaid.systems/ Updated maps will be generated every Friday morning.
Ag Talk Tuesday - August 2
All Crops All Locations
General announcment - all crops
Posted on: August 1, 2022 by Kasia Duellman
Please join us for the next Ag Talk Tuesday session, August 2, 2022 (tomorrow) at 11:00 AM (MT).
Registration is required (you only need to register once for the whole season). Register here:
https://uidaho.zoom.us/meeting/register/tZElce6uqTwpH9CuQSsCTa_7B01HC8gfuGXn
Share or listen to crop updates, then enjoy our featured topic:
How Maximum Residue Levels (MRL) are set for potato products and Potato variety acceptance for French fries by quick service restaurants (QSR); Presenters: Tom Salaiz and Paul Watson, McCain Foods
This is our second to last session for 2022. The final session will be August 16.
Check out our website for more information: https://www.uidaho.edu/extension/news/ag-talk-tuesday
» https://uidaho.zoom.us/meeting/register/tZElce6uqTwpH9CuQSsCTa_7B01HC8gfuGXn
Psyllid Update July 28, 2022
Potato All Locations
potato psyllid
Posted on: July 29, 2022 by Tasha Stanzak
This week we received traps from 66 of the 72 fields that we are monitoring this year. We found a total of 17 psyllids across 11 (17%) of the 66 fields observed. Psyllids were captured from three fields in Canyon County on traps that had been deployed for two weeks.
Psyllids were captured in the following counties: Canyon (5 fields), Jerome (1 field), Twin Falls (3 fields), Cassia (1 field), and Minidoka (1 field).
Thankfully, none of the psyllids collected last week tested positive for Lso, the bacterium associated with zebra chip disease (ZC).
Psyllid numbers this week ticked up a bit from last week’s very low count, but overall captures continue to lag far behind the total captures that we observed by this time last year.
Despite the low psyllid captures, given the incidence of Lso observed in previous weeks, we urge growers to watch psyllid captures closely and to have their IPM programs in place.
As promised last week, we can share one of the figure summaries of psyllid captures over the season compared among years. Visit our site, below, to see one such figure illustrating this year’s low captures relative to the last two years. We hope to be able to show you more in the coming weeks as we work out the “bugs” on our new psyllid monitoring page.
More information can be found here: http://www.uidaho.edu/cals/potatoes/news
--Click on the link under “Updated weekly reports” for details on trap captures.
--Click on the “Psyllid Management” link on the left panel for information on psyllid and zebra chip biology and management.
Also, to view contour maps that illustrate relative psyllid abundance across the landscape, you can set up a free account here: https://potatoes.decisionaid.systems/ Updated maps will be generated every Friday morning.
» psyllid_capture_comparison_by_week_2020_2021_to_26_july_2022.pdf
July 21, 2022 psyllid update
All Crops All Locations
Posted on: July 22, 2022 by Erik Wenninger
This week we had traps deployed in 64 of the 72 fields that we are monitoring this year, though traps from two fields were not submitted. We found a total of 12 psyllids across 10 (16%) of the 62 fields observed.
Psyllids were captured in the following counties: Canyon (2 fields), Jerome (1 field), Twin Falls (2 fields), Cassia (2 fields), Minidoka (2 fields), and Power (1 field).
Three of the four psyllids collected last week tested positive for Lso, the bacterium associated with zebra chip disease (ZC). Positive psyllids were collected from both of the fields in which we found psyllids last week (in Canyon and Bingham counties).
Psyllid numbers this week ticked up a bit from last week’s very low count, but overall captures remain far behind the 100+ psyllids that we were capturing each week by this time last year.
Despite the low psyllid captures, given the incidence of Lso observed over the last two weeks, we urge growers to watch psyllid captures closely and to have their IPM programs in place.
In other news, we have a new site in development that allows you to explore our psyllid captures by county and region in Idaho over time and to compare this year’s captures with those from recent years. It’s still in the testing phase, but we expect to be able to share at least part of that functionality next week.
More information can be found here: http://www.uidaho.edu/cals/potatoes/news
--Click on the link under “Updated weekly reports” for details on trap captures.
--Click on the “Psyllid Management” link on the left panel for information on psyllid and zebra chip biology and management.
Black Bean Aphids in Sugarbeets near Twin Falls
All Crops All Locations
Posted on: July 18, 2022 by Jerry Neufeld
The Amalgamated Sugar Company field consultants are reporting that Black Bean Aphids have been found in sugarbeet fields near Twin Falls, Idaho. Amalgamated Sugar asks that you contact your crop consultant if you have any application questions. Click on the link below for more information about Black Bean Aphid in the Pacific Northwest Insect Management Handbook.
» https://pnwhandbooks.org/insect/agronomic/sugar-beet/sugar-beet-aphid
First Lso-positive psyllids of the 2022 season
Potato All Locations
potato psyllid
Posted on: July 15, 2022 by Erik Wenninger
This week we had traps deployed in 64 of the 72 fields that we are monitoring this year. We found a total of only 4 psyllids across 2 (3%) of the 64 fields.
Psyllids were captured in the following counties: Canyon (1 field) and Bingham (1 field).
5 of the 12 psyllids collected last week tested positive for Lso, the bacterium associated with zebra chip disease (ZC). Positive psyllids were collected from fields in Canyon, Owyhee, Twin Falls, and Cassia counties.
So far this has been a quiet season for psyllid captures in Idaho; by this time last year we were trapping well over 100 psyllids per week. However, the incidence of Lso observed last week is somewhat concerning. Risk of ZC is a function of both psyllid numbers and Lso incidence, so it is fortunate that psyllid numbers have been low thus far. In all of the fields in which a positive psyllid was found last week, no psyllids at all were found this week.
To view contour maps that illustrate relative psyllid abundance across the landscape, you can set up a free account here: https://potatoes.decisionaid.systems/ Updated maps will be generated every Friday morning.
More information can be found here: http://www.uidaho.edu/cals/potatoes/news
--Click on the link under “Updated weekly reports” for details on trap captures.
--Click on the “Psyllid Management” link on the left panel for information on psyllid and zebra chip biology and management.
Need Pesticide Credits?
All Crops All Locations
Posted on: July 12, 2022 by Jerry Neufeld
The University of Idaho Pesticide Safety Education Program will be offering a three credit webinar recertification series on August 2, 9, and 16. Click on the pdf below for more information.
2022 Miller Research Potato Pest Management Field Day
All Crops All Locations
Posted on: July 8, 2022 by Jeff Miller
Miller Research will be holding its annual potato pest
management field day on Wednesday, August 17. The event is open to the public
and there is no cost to attend but
please RSVP so we can plan appropriately for the event. This can be
done on our website or by responding to cheryn@millerresearch.com or (208)
431-4420.
The field day will begin at the field located at the main
office at Miller Research at 422 E 200 N in Rupert (42.649075 N, -113.585594
E).
A detailed agenda and additional information can be found at the link provided here.
» https://millerresearch.com/event/2022-miller-research-potato-pest-management-field-day/
2022 Potato psyllid monitoring program underway in Idaho
Potato All Locations
potato psyllid
Posted on: July 7, 2022 by Erik Wenninger
The University of Idaho and our crop consultant collaborators across the state are once again monitoring for potato psyllids, zebra chip disease (ZC), and liberibacter (Lso), the bacterium associated with ZC. The monitoring program covers commercial potato fields throughout southern Idaho and is funded in part by the Idaho Potato Commission and generous in-kind contributions by our cooperators.
Our official monitoring season began with wide deployment of traps last week and will continue for 10 to 12 weeks. We have 72 fields across the state this year, using 4 sticky traps per field at all sites.
This week we had traps deployed in 64 fields, though we are still waiting for traps to come in from three fields. We found a total of 12 psyllids across 7 (11%) of the fields for which we have data. We have been monitoring three fields at the Kimberly Research & Extension Center since mid-May, and, interestingly, this week is the first that we have found potato psyllids. In previous years we nearly always captured psyllids here before the end of May.
Psyllids were captured in the following counties: Canyon (3 fields), Owyhee (1 field), Twin Falls (2 fields), and Minidoka (1 field).
We expect to have results on Lso incidence next week in addition to “heat maps” and additional details.
More information on psyllid monitoring and management can be found here:
https://www.uidaho.edu/cals/potatoes/news/psyllid-management
Details on weekly trap captures can be found here:
https://docs.google.com/spreadsheets/d/1av-jeEKrbDfYis-eS9nB-ZcKzazXyMWmz7NSAiyt3Go/edit?usp=sharing
» https://www.uidaho.edu/cals/potatoes/news/psyllid-management
» https://docs.google.com/spreadsheets/d/1av-jeEKrbDfYis-eS9nB-ZcKzazXyMWmz7NSAiyt3Go/edit?usp=sharing
Powdery Mildew and Cercospora in Sugarbeets
Sugarbeets All Locations
powdery mildew and cercospora
Posted on: June 30, 2022 by Jerry Neufeld
Powdery mildew and Cercospora leaf spot have been found by Amalgamated Sugar Company Crop Consultants in sugarbeet fields in the western Treasure Valley. There are several fungicides available for use to treat these diseases. Depending on the disease pressure and chemistry used, applications with different chemistries should be repeated every 14-21 days. Please be advised that strobilurins could show reduced efficacy due to fungicide resistance in powdery mildew. Always tankmix with at least 5 lbs of sulfur for resistance management purposes when treating against powdery mildew. For the same reason, use a copper product as tank mix partner when treating against Cercospora. DO NOT MIX COPPER AND GLYPHOSATE. Contact your Crop Consultant from The Amalgamated Sugar Company LLC if you have any questions.
Click on the links below for the powdery mildew and cercospora pages in the PNW Plant Disease Management Handbooks.
» https://pnwhandbooks.org/plantdisease/host-disease/sugar-beet-beta-vulgaris-powdery-mildew
» https://pnwhandbooks.org/plantdisease/host-disease/sugar-beet-beta-vulgaris-cercospora-leaf-spot
Ag Talk Tuesday - next session July 5
All Crops All Locations
General announcement - all crops
Posted on: June 29, 2022 by Kasia Duellman
The next session of the University of Idaho's Ag Talk Tuesday series features Travis Youngberg (NRCS), who will present on "Sustainable, regenerative and other buzz words." The session starts at 11:00 AM (MT) and registration is required to attend (register once to attend all 2022 sessions).
Current season crop updates precede the featured presentation, and all ag-related (soil, water, nutrient, pest, weed, disease) issues for all crops large or small (throughout Idaho and the region and even the world!) may be represented in these engaging, interactive round-table discussions.
Join us July 5 at 11:00 AM (MT).
Registration information is available by following this link: https://www.uidaho.edu/extension/news/ag-talk-tuesday
Ag Talk Tuesday - June 21, 2022
All Crops All Locations
Posted on: June 17, 2022 by Kasia Duellman
Olga Walsh (owalsh@uidaho.edu)
TOUR DATE CHANGED to JUNE 28TH - Aberdeen Snake River Weed Mg Tour and Field day
All Crops All Locations
Posted on: June 17, 2022 by Pamela Hutchinson
CHANGE THE DATE OF THE Aberdeen Snake
River Weed Mg Tour and Field day
Tuesday JUNE 28TH
instead of June 21st.
Please pass the word
- Registration
8:30 to 9aTour
9a to noon - Followed
by a sponsored lunch. - You
do not need to Pre-register / RSVP
Three
Idaho pesticide recertification credits will be available.
Kimberly does NOT change – will still be held Wednesday June 22nd.
Featured
on the Aberdeen R&E Center Tour Tuesday June 28th
- Herbicide tank mixtures for use in potatoes; Potato variety herbicide tolerance; Simulated Excess
Rainfall Effects on Herbicides and Potato Crop Safety; Herbicide site of action
demonstration. - Weed control in quinoa; Herbicide management in Litchi tomato; Fiber hemp herbicide tolerance.
- In
addition - Updates from: USDA/University of Idaho potato breeding, Potato disease management, Seed potatoes, Barley and Wheat production and varieties.
Stripe (Yellow) rust found in Filer / Buhl area
All Crops All Locations
Stripe rust (yellow rust) in wheat
Posted on: June 17, 2022 by Juliet Marshall
With the spring weather perfect for small grain production, it is no surprise that stripe rust was finally confirmed in southern Idaho. Thanks and a free lunch goes to Trenton Stanger, Westbred, for the first reported sighting in breeding plots near Buhl. The breeding line was significantly infected, but isolated (that is, infections were not widespread in the field). Most of the plots were just past flowering, and there is a long way to go for the winter crop to finish. We are about 10-14 days behind the previous years according to growing degree day estimates. (Be sure to check plant growth stage prior to shutting off irrigation. You don't want to shut off irrigation too soon or too late - remember the general rule of thumb of "Full soil profile of moisture at soft dough before water shut off.")
We are past the window of application for fungicides for winter wheat, and the stripe rust disease pressure is low.
The greatest threat will be for susceptible spring wheat varieties. Scout spring wheat fields for infection, and report infections to University personnel in order for us to track and report new occurrences. Fungicide applications will likely not be required for moderately resistant and resistant varieties. Fungicides on the market are equally effective as stripe rust protectants, but as the flag leaves emerge, do not use strobilurin fungicides as that increases risk for DON contamination in grain from FHB or scab infection.
Remember to read and follow all label directions.
The Ag Talk Report and the next Ag Talk Tuesday session
All Crops All Locations
General announcement - all crops
Posted on: June 1, 2022 by Kasia Duellman
The first issue of 2022 for the Ag Talk Report, a newsletter that supplements the Ag Talk Tuesday series, is now available. Previous issues are available online at the Ag Talk Tuesday website: www.uidaho.edu/ag-talk
The next Ag Talk Tuesday session is Tuesday, June 7. Join us for a panel discussion on herbicide resistant weeds in Idaho. Registration is required (one time registration allows you to attend all sessions in 2022). Find the link to register on the Ag Talk Tuesday website.
Agronomic Soil Testing Class - Online
All Crops All Locations
Posted on: May 31, 2022 by Stuart Reitz
This online course is designed for crop advisors, agronomists, and others testing soil on farms or in laboratories. The course is led by Oregon State University Extension Soil Fertility Specialist, Dr. Amber Moore.
Lecturers: Various OSU Extension Agronomists and Soil Scientists
Time commitment: 1-3 hours per week for 6 weeks. The 19 lecture modules can be accessed at your convenience.
Cost: $495 (+$60 registration fee)
CCA Continuing Education Units: Six Nutrient Management CEUs
Course topics include:
• Choosing a Soil Testing Lab
• Soil pH and Buffer pH
• Extractable Cations
• Nitrate and Mineralizable Nitrogen
• Phosphorus, Potassium, and Sulfate
• Micronutrients
• Salts (Electrical Conductivity)
• Organic Matter & Carbon
• Soil Health Indicators
Registration Link:
https://workspace.oregonstate.edu/course/agronomic-soil-testing
» https://workspace.oregonstate.edu/course/agronomic-soil-testing
Ag Talk Tuesday - May 17th at 11:00 AM Mountain
All Crops All Locations
Ag Talk Tuesdays
Posted on: May 16, 2022 by Juliet Marshall
May 17 — FSA programs and policies — Matt Gellings, Ben Thiel — Doug Finkelnburg (host)
Olga Walsh (owalsh@uidaho.edu)
| KASIA M. DUELLMAN, Ph.D. Assistant Professor of Plant Pathology and Extension Specialist College of Agricultural and Life Sciences Entomology, Plant Pathology and Nematology kduellman@uidaho.edu webpages.uidaho.edu/extension-seed-potato/ 208-757-5476 | 701-793-9456 (Cell) U of I Idaho Falls | 1776 Science Center Drive, Suite 205 | Idaho Falls ID 83402 | United States |
Grain production worldwide in dire straights
Small Grains All Locations
Cereal Production 2022
Posted on: May 4, 2022 by Juliet Marshall
All - I usually do not send pest alerts out like this with scary titles as I do not believe in “saber rattling”. But there are several situations occurring worldwide that are concerning to me in regards to wheat production.
1) The war in Ukraine - beyond the obvious disruption to everyday activities associated with agricultural production, the destruction of port cities and export infrastructure in addition to targeted destruction of grain and shipping facilities in Ukraine, and shipping of grain stores to Russia will reduce worldwide supplies. https://phys.org/news/2022-04-india-wheat-crop-snags-export.html
2) Heat wave in India - https://stories.app.goo.gl/6Gjk Temperatures above 110 degrees F in central India (46.5 degrees Celsius (114.08 Fahrenheit) have reduced grain production in some areas by as much as 50%.
3) Reduced production in China - https://www.reuters.com/business/china-ensure-agricultural-product-supplies-including-grains-2022-03-05/
BEIJING, March 5 (Reuters) - The condition of China's winter wheat crop could be the "worst in history", the agriculture minister said on Saturday, raising concerns about grain supplies in the world's biggest wheat consumer.
4) US production projections are for lower than average. From the Idaho Wheat Commission Newsletter on 4/29/22: Chicago wheat futures rebounded on Tuesday as the worst U.S. winter crop rating since 1989 put attention back on global supply already strained by the war in Ukraine.
Current conditions in Idaho and the PNW are favorable to winter wheat production with the greatest constraint associated with dry conditions. In fact, the extremely cool weather has delayed plant maturity, increasing the potential for heavy stooling of the wheat crop. Looking at data from the UI potato website, growing degree days are far behind previous years:
While data from Aberdeen is not available on Agrimet (https://www.usbr.gov/gp/agrimet/agrimet_station_list.html) comparing data from Kimberly and Parma show a rather surprising lag in GDD throughout southern Idaho.
WHAT DOES THIS MEAN FOR THIS YEAR’S GRAIN PRODUCTION IN IDAHO?
Heavy stooling increases yield potential for winter wheat and winter barley. While the weather is unpredictable, if the conditions stay favorable to grain growth, consider applications of plant growth hormones to reduce lodging. (If it is not too late in your area.)
Take advantage of the extra (and localized) rain events to increase subsoil moisture storage while irrigation is available. Yes, if you have irrigation, use it to increase soil storage capacity for later season moisture shortages, especially beneficial if prediction for hot and dry late spring and summer weather actually occurs.
Control yield-robbing weeds.
Scout for diseases. Stripe rust literally can annihilate wheat and barley production. The Good news is that we usually have low barley stripe rust disease pressure and wheat stripe rust forecasts from Dr. Xianming Chen are for low to moderate disease pressure in the Washington and Palouse areas. "Recommendations for the eastern Pacific Northwest - As stripe rust has not been found and the disease is likely to have a late start, fungicide application is not recommended in the early growth season at the time of herbicide application for winter wheat, unless stripe rust is observed in the fields.” Dr. Chen, 3/7/22 email.
Due to enduring drought conditions throughout the west (including CA and NV, downwind of southern Idaho production), I expect low disease pressure from stripe rust. I also do not recommend fungicide application at herbicide timing for stripe rust control, even in susceptible varieties. Always scout, and if sound, report stripe rust infections to me ASAP so I can get the word out.
Even if planted early, spring grains has gotten a delayed start due to cool conditions and emergence has been slow. If expected hot dry conditions develop in May through July, yield potential can be reduced with heat at flowering. A lot depends on (obviously) the temperatures as the season progresses.
Pay close attention to conditions at flowering for scab (Fusarium head blight) and potential mycotoxin contamination from DON.
When crops are harvest ready, get them out of the field ASAP to reduce the likelihood of sprout damage from August rains.
This year may be one of the most profitable years for grain production so PAY ATTENTION to the details.
Wishing everyone the best for the upcoming season!
Cheers,
Juliet
Plant Sciences Department Head, Endowed Research Professor, Cereals Pathology and Agronomy
Idaho Falls R&E Center
1776 Science Center Drive Suite 205
Idaho Falls, ID 83402
208-529-8376 office
http://www.uidaho.edu/extension/cereals/scseidaho/
“We shouldn’t be looking for certainty. Instead, we should be saying to ourselves ‘When do we have enough evidence to make good decisions.’” Cailin O’Connor UC Irvine
Growing Degree Days for Potatoes
Potato All Locations
Posted on: April 28, 2022 by Nora Olsen and Mike Thornton
<p class="MsoNormal"><span style="font-size:12.0pt;line-height:107%">Snow, hail,
rain, sunshine, and wind appear to be interchangeable this April. To focus on
the temperatures so far, calculating growing degree days (GDD) or heat units is
one method to look at the effect of temperature on the potato crop. Plant
growth and development is greatly influenced by temperature, and we use GDD to
get an idea of how the plant is developing throughout the season. It also gives
a great snapshot on how the current season compares to previous seasons. Daily
GDD is calculated by adding the maximum temperature and the minimum
temperature, dividing by 2 and subtracting a base temperature. The base
temperature is used to define the temperature at which potato growth is
diminished. <o:p></o:p></span></p><p class="MsoNormal"><span style="font-size:12.0pt;line-height:107%">To quantify this
period of cold temperatures, we collated the cumulative GDDs for Parma,
Kimberly and Aberdeen. The source of the GDD was AgriMet (www.usbr.gov/pn/agrimet/wxdata.html)
weather stations located at the three sites. The AgriMet calculation of GDD
uses 50F as a minimum and 86F as a maximum. There are limitations to the use of
these minimum and maximums since potatoes will grow outside of this range, but
these calculations can still provide a reasonable prediction of the temperatures
impacting potato growth. The GDD these past weeks is quite a contrast to the
GDD from 2021 and the 11-year average.<o:p></o:p></span></p><p>
</p><p class="MsoNormal"><span style="font-size:12.0pt;line-height:107%">To help
provide a picture of the relationship between temperature and plant
development, we will continue to update the GDD graphs weekly for the three
locations and post at </span><a href="http://www.uidaho.edu/cals/potatoes/storage"><span style="font-size:12.0pt;
line-height:107%">www.uidaho.edu/cals/potatoes/storage</span></a><span style="font-size:12.0pt;line-height:107%">. Aberdeen GDD was not available at
this time but will be posted on the website when available.<o:p></o:p></span></p>
Ag Talk Tuesdays resume for 2022
All Crops All Locations
General announcment
Posted on: April 19, 2022 by Kasia Duellman
We are excited to announce that the University of Idaho Extension's Ag Talk Tuesday sessions resume May 3 for the 2022 season.
Each session starts at 11:00 AM (MDT) on the first and third Tuesdays, May through August.
These live events begin with crop updates where all participants are invited to contribute, followed by a featured presentation. You can find a schedule of featured topics and speakers (subject to change) and more information on our website:
https://www.uidaho.edu/ag-talk
Registration is required to attend. You only need to register once to attend all sessions. Once you register, information on how to attend via Zoom or by calling in by phone will be sent to you in a separate email.
To register, click this link (or copy and paste the following into your web browser):
https://uidaho.zoom.us/meeting/register/tZElce6uqTwpH9CuQSsCTa_7B01HC8gfuGXn
Please join us starting May 3 at 11:00 AM (MDT) for these live, online sessions that focus on agriculture - current season issues related to pests, diseases, weeds, diagnostics, soil health, irrigation/water, agronomy & more along with featured topics and guest speakers.
For questions, please contact one of the organizers:
Kasia Duellman (kduellman@uidaho.edu)
Doug Finkelnburg (dougf@uidaho.edu)
Pam Hutchinson (phutch@uidaho.edu)
Juliet Marshall (jmarshall@uidaho.edu)
Olga Walsh (owalsh@uidaho.edu)
Seeking help for a research project
Potato All Locations
Posted on: April 7, 2022 by Jeff Miller
A research project funded by the tri-state (ID, WA, and OR) research consortium is looking for some help (see below). If you are able and interested, please contact David Wheeler (contact info below).
Good luck with planting!
Jeff
A team of scientists at Washington State University, Oregon State University and USDA-ARS received a second year of funding from the Northwest Potato Research Consortium to characterize so called “virgin” soils that have never been planted with potato. Growers have long observed yield increases (14-26%) when planting potato in virgin soils compared to nearby non-virgin soils that have been planted in potato. Our short term goal is to document the properties (e.g. biological, physical, and chemical) in the soil associated with these yield increases. Long term we want to use this information to reproduce these yield increases in commercial fields. To do this we need your help!
Can you please reach out to us if you know any pairs of potato fields that will be planted with potato this year and were either (i) planted with potatoes within the past 5 years (non-virgin fields) or (ii) never planted with potato (virgin fields)? With your permission we can then visit each field, sample soil from each field before planting, and sample soil from nearby “native soil” that has never been planted with any crop. Once we have these three types of samples we will characterize the soil pathogen loads, nematode diversity and abundance, and soil biological, physical, and chemical properties. Lastly, we will bring the soils to a common location and plant potatoes in each soil to quantify potato performance in each soil type.
Please contact David Wheeler via email (David.wheeler@wsu.edu) or mobile (215-880-3024). Thank you all in advance for your time and attention. We look forward to working together this year.
David Wheeler, Cynthia Gleason, Ken Frost, Deirdre Griffin LaHue, and Tim Paulitz
Potato soil health survey - your help is requested!
Potato All Locations
Posted on: February 18, 2022 by Jeff Miller
Researchers from the University of Idaho, Montana State University, and the University of Minnesota would like your feedback on potato production and soil health. The results of this survey will influence the important research done by these teams. They'll ask questions about crop rotations, soil health management practices, and fumigation in this brief survey. As a token of their appreciation, you'll be eligible to enter into a drawing for a $100 Cabela's (or equivalent) gift card after you've completed the survey. If you have any questions, please contact Alex Maas at alexmaas@uidaho.edu.
» https://uidaho.co1.qualtrics.com/jfe/form/SV_8bQye9iBZ5UHI0K
UI Extension Pesticide Safety Education Program
All Crops All Locations
Posted on: February 2, 2022 by Jerry Neufeld
The UI Extension Pesticide Safety Education Program will be offering pre-license trainings ONLINE, via Zoom. This 4-day class is designed to be both with live instructors and work on your own, at your own pace. Students are required to have a computer or smart tablet with internet access. You will learn core pesticide safety practices and prepare for the following Idaho State Department of Agriculture pesticide exams; Private Applicator, Professional Applicator: Law and Safety; Agricultural Herbicide; Agricultural Insecticide; Ornamental Herbicide; Ornamental Insecticide; General Pest; Right of Way; and Chemigation.
Classes meet twice daily Monday through Thursday. Choose one of the following weeklong sessions:
1. March 14-17, 2022, from 9-11:30 am (MST) and 1:30-4 pm (MST). Registration closes, March 9, 2022.
2. March 28-31, 2022, from 9-11:30 am (MST) and 1:30-4 pm (MST). Registration closes, March 23, 2022.
Click on the pdf below for more information.
2022 Miller Research Potato Pest Management Meeting Final Notice
Potato All Locations
Posted on: January 31, 2022 by Jeff Miller
Miller Research will be holding its annual Potato Pest Management Meeting in person on February 10, 2022, at the Historic Wilson Theater in Rupert, ID. The meeting will run from 8:30 am to 12:00 pm with a 30-minute break at 10:00 am. Three credits have been awarded for CCA (integrated pest management), Idaho, Oregon, and Washington pesticide recertification.
For those not able to attend in person, a virtual option will be available. If you want to participate by Zoom, contact Cheryn Suarez (cheryn@millerresearch.com) after registration and she will send you the link to attend. Virtual attendees will need to answer questions on Zoom to verify participation. Thus, each person desiring credits needs to be logged in. Contact us if you need to make other arrangements.
Registration is $20 to cover the cost of the meeting. After covering meeting costs, additional proceeds will be donated to the 4-H program.
Meeting agenda:
8:00 am – 8:30 am: Registration
8:30 am – 9:00 am: Seed treatments for Fusarium dry rot management
9:00 am – 9:30 am: The impact of anastomosis group on Rhizoctonia canker management
9:30 am – 10:00 am: Verticillium wilt control
10:00 am – 10:30 am: Break
10:30 am – 11:00 am: Control options for powdery scab and potato mop-top virus
11:00 am – 11:30 am: PVY and Seed Health (Dr. Jonathan Whitworth, USDA)
11:30 am – 12:00 pm: Managing pesticide resistance
» https://millerresearch.com/event/2022-miller-research-potato-pest-management-meeting/
Treasure Valley Virtual IPM Meeting
All Crops All Locations
Posted on: January 25, 2022 by Jerry Neufeld
The Treasure Valley Virtual IPM Meeting is being held on Tuesday February 8th at 9 am. After registering (only requires name and email) you will receive information about joining the meeting. The meeting is free to attend and two ISDA credits, two ODA (core) credits and two CCA IPM Credits are available. Click on the pdf below for the registration link and more program information.
Idaho Potato Conference
Potato All Locations
Posted on: January 13, 2022 by Nora Olsen and Mike Thornton
Early
registration ends tomorrow Friday January 14th. Register Now!
The 54th
annual Idaho Potato Conference and Eastern Idaho Ag Expo presented by the
University of Idaho and Spectra Productions will be live and in-person in 2022.
Set your calendars to attend the 2022 Idaho Potato Conference January 19 and 20
in Pocatello, ID. Attend your choice of educational presentations and workshops
from three concurrent sessions over the one and half-day conference and take
some time to visit the adjoining trade show that features over 70 booths and
displays highlighting agricultural products and services.
2022 highlights of the Idaho Potato
Conference:
· There
will be several seminars and workshops on the impact of the 2021 season
including heat impact on potatoes, soil health, storage losses, and irrigation
efficiency.
· Invited
speaker Dr. Carrie Wohleb from Washington State University will present on the Impacts
of Wildfire Smoke on Potatoes.
· Current
outlooks on water, economics, labor and sustainability from industry leaders
will bring us up to date on major topics for the potato industry.
· Special
guests from the National Potato Council, Potatoes USA, Idaho Potato Commission
will provide industry updates.
· Multiple
pest protection presentations and workshops including tank mixing
considerations, rotational crops and herbicide carryover issues, pollinators
and potatoes, Fusarium dry rot aggressiveness, managing Rhizoctonia, diagnosing
crop injury, pesticide resistance management, alternatives to fumigation,
rotation and potato cyst nematode control, and comprehensive disease and weed
management workshops.
· Economists
will present a workshop on the profitability implications of fertilizer cost
increases in addition to a discussion on the seasonality of retail rejections.
The latter discussion will dovetail with a one-hour workshop on the impact of
bruise on quality.
· A
workshop dedicated to ‘Everything you wanted to know about potato viruses, but
were afraid to ask.’ Come with questions to ask a panel of experts on the topic
of tuber necrotic diseases.
· Seminars
and workshops in Spanish will be held both days and include a wide variety of
topics from beneficial insect identification to farm safety discussions.
· Earn
CCA (CEU) and pesticide recertification credits at seminars and workshops
throughout the in-person conference.
· Select
theater presentations will be recorded and available at the conference website
after the conference. Registration for the conference will be required to gain
access to the recorded presentations.
·
Cost for
pre-registration is $40 per person. Pre-registration will close at 5 pm MT on
January 14. After that time, please plan to register in-person at the
conference (cost increase to $50). We strongly encourage everyone to
pre-register and avoid the lines at the conference. Additional details
regarding the agenda, topics, and registration can be found at https://www.uidaho.edu/cals/potatoes/news/idaho-potato-conference.
» https://www.uidaho.edu/cals/potatoes/news/idaho-potato-conference.
2022 Idaho Potato Conference
Potato All Locations
Posted on: January 6, 2022 by Nora Olsen and Mike Thornton
Register
Now!
The 54th
annual Idaho Potato Conference and Eastern Idaho Ag Expo presented by the
University of Idaho and Spectra Productions will be live and in-person in 2022.
Set your calendars to attend the 2022 Idaho Potato Conference January 19 and 20
in Pocatello, ID. Attend your choice of educational presentations and workshops
from three concurrent sessions over the one and half-day conference and take
some time to visit the adjoining trade show that features over 70 booths and
displays highlighting agricultural products and services.
2022 highlights of the Idaho Potato
Conference:
· There
will be several seminars and workshops on the impact of the 2021 season
including effect of the weather on soil fertility, heat impact on potatoes,
soil health, storage losses, and irrigation efficiency.
· Invited
speaker Dr. Carrie Wohleb from Washington State University will present on the Impacts
of Wildfire Smoke on Potatoes.
· Current
outlooks on water, economics, labor and sustainability from industry leaders
will bring us up to date on major topics for the potato industry.
· Special
guests from the National Potato Council, Potatoes USA, Idaho Potato Commission
will provide industry updates.
· Multiple
pest protection presentations and workshops including tank mixing
considerations, rotational crops and herbicide carryover issues, pollinators
and potatoes, Fusarium dry rot aggressiveness, managing Rhizoctonia, diagnosing
crop injury, pesticide resistance management, alternatives to fumigation, rotation
and potato cyst nematode control, and comprehensive disease and weed management
workshops.
·
Economists will present a workshop on
the profitability implications of fertilizer cost increases in addition to a
discussion on the seasonality of retail rejections. The latter discussion will
dovetail with a one-hour workshop on the impact of bruise on quality.
·
A workshop dedicated to ‘Everything
you wanted to know about potato viruses, but were afraid to ask.’ Come with
questions to ask a panel of experts on the topic of tuber necrotic diseases.
·
Seminars and workshops in Spanish will
be held both days and include a wide variety of topics from beneficial insect
identification to farm safety discussions.
Earn CCA (CEU) and pesticide
recertification credits at seminars and workshops throughout the in-person
conference.
Select presentations will be recorded
and available at the conference website after the conference. Registration for the
conference will be required to gain access to the recorded presentations.
Cost for pre-registration is $40 per person ($50 at the
door). We strongly encourage everyone to pre-register and avoid the lines at
the conference. Additional details regarding the agenda, topics, and
registration can be found at https://www.uidaho.edu/cals/potatoes/news/idaho-potato-conference.
» https://www.uidaho.edu/cals/potatoes/news/idaho-potato-conference
2022 Pre-License Training for Ornamental Pesticide Applicators
All Crops All Locations
Posted on: December 20, 2021 by Nic Usabel & Kimberly Tate
The UI Extension Pesticide Safety Education Program will be offering pre-license training during the 2022 Idaho Horticulture Expo in Boise. This training will be in-person with a two-day agenda. Focus will be on the following categories: Ornamental Insecticide (OI), Ornamental Herbicide (OH), General Pest (GP), and Core (CO).
Registration includes access to eLearning modules and study materials housed on the National Extension Foundation website. These materials prepare students for the 2-day class and the statewide exams. ALL materials will be available to each registered student with continued access until three weeks after the training. January 20 – 21, 2022, daily at 9am – 4pm MST (limit 45 students) Boise Centre, 850 W Front St., Boise 83702
This educational training is funded through an ISDA grant. There will be no cost to the student. COVID-19 restrictions will be determined by the instructors. Registered students will be notified of the current guidelines. To register, visit our website https://www.uidaho.edu/extension/ipm
For questions contact:
- Ronda Hirnyck | rhirnyck@uidaho.edu | 208-364-4046
- Kimberly Tate | ktate@uidaho.edu | 208-364-4581
2022 Miller Research Potato Pest Management Meeting
Potato All Locations
Posted on: December 17, 2021 by Jeff Miller
After meeting virtually in 2021, Miller Research will be
holding its annual Potato Pest Management Meeting in person on February 10,
2022, at the Historic Wilson Theater in Rupert, ID. The meeting will run from
8:30 am to 12:00 pm with a 30-minute break at 10:00 am. Three CCA (integrated
pest management) credits and three ISDA pesticide recertification credits have
been awarded for the meeting. Oregon and Washington credits have been requested.
We are working on making a virtual option available. If this
works, virtual attendees will still need to pay the registration fee and answer
questions during the presentation as proof of attendance.
Registration is $20 to cover the cost of the meeting.
Additional proceeds will be donated to the 4-H program.
Meeting agenda:
8:00 am – 8:30 am: Registration
8:30 am – 9:00 am: Seed treatments for Fusarium dry rot
management
9:00 am – 9:30 am: The impact of anastomosis group on
Rhizoctonia canker management
9:30 am – 10:00 am: Verticillium wilt control
10:00 am – 10:30 am: Break
10:30 am – 11:00 am: Control options for powdery scab and
potato mop-top virus
11:00 am – 11:30 am: PVY and Seed Health (Dr. Jonathan
Whitworth, USDA)
11:30 am – 12:00 pm: Managing pesticide resistance
» https://millerresearch.com/event/2022-miller-research-potato-pest-management-meeting/
2021 Annual Survey Winners
All Crops All Locations
Posted on: December 10, 2021 by Jerry Neufeld
Thanks to everyone that completed a 2021 annual survey for the PNWPestAlert.net website. The winners of the Texas Roadhouse gift cards are Ron Y, Mike M, and Kevin K.
Register for the in-person 2022 Idaho Potato Conference
Potato All Locations
Posted on: November 29, 2021 by Nora Olsen and Mike Thornton
Registration
is now OPEN!
The 54th
annual Idaho Potato Conference and Eastern Idaho Ag Expo presented by the
University of Idaho and Spectra Productions will be live and in-person in 2022.
Set your calendars to attend the 2022 Idaho Potato Conference January 19 and 20
in Pocatello, ID. Attend your choice of educational presentations and workshops
from three concurrent sessions over the one and half-day conference and take
some time to visit the adjoining trade show that features over 70 booths and
displays highlighting agricultural products and services.
Seminars and workshops in Spanish will
be held both days and include a wide variety of topics from beneficial insect
identification to farm safety discussions.
Earn CCA (CEU) and pesticide
recertification credits at seminars and workshops throughout the in-person
conference.
Select presentations will be recorded
and available at the conference website after the conference. Registration for the
conference will be required to gain access to the recorded presentations.
Cost for pre-registration is $40 per person ($50 at the
door). We strongly encourage everyone to pre-register and avoid the lines at
the conference. Additional details regarding the agenda, topics, and
registration can be found at https://www.uidaho.edu/cals/potatoes/news/idaho-potato-conference.
2021 Idaho Association of Plant Protection registration now available online
All Crops All Locations
Posted on: October 25, 2021 by Jeff Miller
The agenda has been set and registration is now available for the 2021 Annual Idaho Association of Plant Protection (IAPP) annual meeting.
For those who want to attend by Zoom, you must register for the Zoom meeting (a separate registration for each day) and then you must also register at the following link:
https://millerresearch.com/event/2021-idaho-association-of-plant-protection/
After registering at the link, you will receive an email allowing you to pay online via PayPal. Registration in person will be available at 12:30 pm on Wednesday and can be paid by check or cash.
Three ISDA pesticide recertification credits and 3.5 CCA Pest Management credits are available each day. The $15 registration fee covers both days and the cost is the same if you attend one or both days.
» https://millerresearch.com/event/2021-idaho-association-of-plant-protection/
2021 Pesticide Fall Recertification Webinar Series
Landscape & Garden All Locations
Posted on: October 22, 2021 by Nic Usabel
The UI Extension Pesticide Safety Education Program (PSEP) will be conducting 6-webinars on Tuesdays from Nov. 2 - Dec. 14. Completed webinars receive one-pesticide credit*. These webinars are synchronous and held from 10 AM - 11:15 AM (MST). The cost is $10 per applicator/webinar. Enroll now on our UI Marketplace HERE. Check out the details in the attached UIPSEP Fall Recertification Webinars poster. For more information, contact Kimberly Tate at ktate@uidaho.edu.
*For pesticide credit: Pesticide applicators must answer questions throughout the webinar session. This requires individual computer and internet access for each user. Answers will be collected to confirm attendance was maintained for the entire webinar.
Pesticide Fall Recertification Webinar Series
All Crops All Locations
Posted on: October 22, 2021 by Kimberly Tate
The UI Extension Pesticide Safety Education Program (PSEP) will be conducting 6-webinars on Tuesdays from Nov. 2 - Dec. 14. Completed webinars receive one-pesticide credit*. These webinars are synchronous and held from 10 AM - 11:15 AM (MST). The cost is $10 per applicator/webinar. Enroll now on our UI Marketplace HERE. Check out the details in the attached UIPSEP Fall Recertification Webinars poster. For more information, contact Kimberly Tate at ktate@uidaho.edu.
*For pesticide credit: Pesticide applicators must answer questions throughout the webinar session. This requires individual computer and internet access for each user. Answers will be collected to confirm attendance was maintained for the entire webinar.
Bird cherry-oat aphids on the move; time to inspect fields
Small Grains All Locations
Bird Cherry Oat Aphids
Posted on: October 8, 2021 by Jerry Neufeld
The winged from of bird cherry-oat aphids has been observed in winter wheat in Twin Falls County, Idaho; the wheat was planted in late-September.
The observed aphid numbers were relatively low (averaging one per young seedling), but it indicates that the aphids are on the move, and that the numbers could increase, if the mild weather continues.
Although bird cherry-oat aphids rarely cause significant damage to small grains by direct feeding, they are efficient vectors of Barley yellow dwarf virus (BYDV).
See below publication for more information on BYDV symptoms and the aphid vectors.
» https://www.extension.uidaho.edu/publishing/pdf/CIS/CIS1210.pdf
Artificial Intelligence for Insect Identification
All Crops All Locations
Posted on: September 30, 2021 by Jerry Neufeld
As a component of a USDA-funded project, Harnessing
artificial intelligence for implementing integrated pest management in
small-grain production systems, the University of Idaho is developing a system
to automatically identify insects in wheat and other crops based on submitted
cellphone images.
To develop this system, we need your help with collecting a
large number of photographs of pests and beneficial insects observed in cereal
cropping systems
(cereals and rotation crops) throughout the region. To date,
we have received more than 1300 insect photos- Thank you for your continuing
support!
We will need thousands of photos to train our computer
algorithm to enable the system to generate the most accurate identifications of
unknown samples.
To help us develop this tool, please upload insect
photographs through this link: https://cerealpestaid.net/
2021 Idaho Association of Plant Protection Agenda - Nov. 3-4, Burley Best Western
All Crops All Locations
Posted on: September 28, 2021 by Jeff Miller
The agenda has now been posted for the 2021 Idaho Association of Plant Protection annual meeting on Nov. 3-4 in Burley, ID. See the attached files for more information. ISDA pesticide recertification credit and CCA Pest Management credits have been requested.
» https://millerresearch.com/event/2021-idaho-association-of-plant-protection/
Psyllid Update September 17, 2021
Potato All Locations
potato psyllid
Posted on: September 17, 2021 by Erik Wenninger
This is the final report of the 2021 Idaho psyllid monitoring program.
From our samples from last week, we found our first Lso-positive psyllid of the season, on a site in Owyhee County. All other psyllids tested from last week were negative for Lso, the bacterium associated with zebra chip disease (ZC). The total percent positive among all sites for the season was 0.08%, which is the lowest incidence of Lso we have observed during the past decade.
During mid- to late July, it appeared that overall psyllid captures would be relatively high this year; however, captures were lower during August, which is the time of year that our psyllid captures are often highest. It is possible that the high temperatures during June to July contributed to higher captures and the more moderate temperatures in August contributed to more modest captures. In the end, overall captures across the season were relatively modest compared to other seasons, and similar to overall captures last year.
Greater abundance of psyllids earlier during the season should generally contribute to greater risk of ZC disease development over the season. However, risk of ZC is a function of both psyllid abundance over the season and Lso incidence. The extremely low incidence of Lso observed in psyllids coupled with relatively modest captures overall, suggests relatively low risk of ZC in the crop this season.
To dive more deeply into the capture data over the season, you can view contour maps that illustrate relative psyllid abundance across the landscape each week here: https://potatoes.decisionaid.systems/
More details can also be found here: http://www.uidaho.edu/cals/potatoes/news
--Click on the links under “Updated weekly reports” for details on trap captures.
--Click on the “Psyllid Management” link on the left panel for information on psyllid and zebra chip biology and management.
Psyllid Update September 9, 2021
Potato All Locations
potato psyllid
Posted on: September 9, 2021 by Erik Wenninger
This week we had traps deployed in 48 fields, though we are still waiting for traps from one Treasure Valley field. We found a total of 66 psyllids across 15 (32%) of the 47 fields for which we have data. With many fields undergoing vine kill, this is our last week of retrieving sticky traps. We will, however, report on Lso results and a season recap next week.
Overall psyllid captures this week were similar to the last two weeks, with considerably lower captures than for most recent weeks. We recorded moderate captures in parts of the Treasure Valley and Owyhee to Elmore counties as well as near Twin Falls. We recorded low captures elsewhere.
Psyllids were captured in the following counties: Canyon (3 fields), Owyhee (3 fields), Elmore (1 field), Twin Falls (5 fields), Minidoka (2 fields), and Cassia (1 field).
All psyllids tested from last week were negative for Lso, the bacterium associated with zebra chip disease (ZC). Testing of late-arriving psyllids from one field in Canyon County is pending. Thus far, all of our psyllid samples have been negative.
With harvest season upon us, it is worth remembering that our studies in Russet Burbank showed that ZC can develop during storage if infection occurs as late as two weeks before vine kill. Please consider this in your late-season IPM programs.
To view contour maps that illustrate relative psyllid abundance across the landscape, set up a free account here: https://potatoes.decisionaid.systems/
More information can be found here: http://www.uidaho.edu/cals/potatoes/news
--Click on the links under “Updated weekly reports” for details on trap captures.
--Click on the “Psyllid Management” link on the left panel for information on psyllid and zebra chip biology and management.
Psyllid Update September 2, 2021
Potato All Locations
potato psyllid
Posted on: September 3, 2021 by Erik Wenninger
This week we had traps deployed in 58 fields, though we are still waiting for traps from one Treasure Valley field. We found a total of 72 psyllids across 13 (23%) of the 57 fields for which we have data. Many fields have undergone vine kill and will no longer be sampled.
Overall psyllid captures this week and last week have been considerably lower than for recent weeks. Contour maps (see links below) graphically reflect relatively high abundance of psyllids collected in Elmore County. We recorded moderate to low captures in other parts of the state and zero captures in eastern Idaho.
Psyllids were captured in the following counties: Canyon (3 fields), Owyhee (3 fields), Elmore (2 fields), Gooding (1 field), and Twin Falls (4 fields).
We expect to get Lso results tomorrow, and we will post them on our sites (below) as soon as they are available. Thus far, all of our previous psyllid samples have been negative for Lso, the bacterium associated with zebra chip disease (ZC).
With harvest season upon us, it is worth remembering that our studies in Russet Burbank showed that ZC can develop during storage if infection occurs as late as two weeks before vine kill. Please consider this in your late-season IPM programs.
To view contour maps in more detail, set up a free account here: https://potatoes.decisionaid.systems/
More information can be found here: http://www.uidaho.edu/cals/potatoes/news
--Click on the links under “Updated weekly reports” for details on trap captures.
--Click on the “Psyllid Management” link on the left panel for information on psyllid and zebra chip biology and management.
2022 Idaho Potato Conference Call for Topics
Potato All Locations
Posted on: August 31, 2021 by Nora Olsen and Mike Thornton
This the first call for
topics for the 2022 Idaho Potato Conference that will take place in Pocatello,
ID on January 19th and 20th. Please provide your ideas for potential
workshops and presentations for this year's conference to Nora Olsen (norao@uidaho.edu) or Mike Thornton (miket@uidaho.edu) by September 30th so that we can put together
a preliminary list for the program planning meeting. Please also suggest
a speaker if you have someone in mind that would do a good job of covering the
topic.
Psyllid Update August 26, 2021
All Crops All Locations
potato psyllid
Posted on: August 26, 2021 by Erik Wenninger
This week we had traps deployed in all 73 fields, though we are still waiting for traps from two fields in eastern Idaho. We found a total of 64 psyllids across 22 (31%) fields.
Overall psyllid captures were considerably lower than for recent weeks. Contour maps (see links below) graphically reflect relatively high abundance of psyllids collected in some fields in the western Treasure Valley and in Elmore County, but this abundance is markedly lower than in previous weeks. Moderate to low captures were recorded in the Magic Valley and very few captures were recorded east of the Magic Valley.
Psyllids were collected on sticky traps in potato in the following counties: Canyon (9 fields), Payette (1 field), Owyhee (2 fields), Elmore (2 fields), Twin Falls (6 fields), Cassia (1 field), and Bingham (1 field).
Once again, all psyllids tested from last week were negative for Lso, though testing of a single psyllid from last week is still pending. We have yet to find any Lso-positive psyllids this season.
With harvest season upon us, it is worth remembering that our studies in Russet Burbank showed that ZC can develop during storage if infection occurs about two weeks before vine kill. Please consider this in your late-season IPM programs
To view contour maps in more detail, set up a free account here: https://potatoes.decisionaid.systems/
More information can be found here: http://www.uidaho.edu/cals/potatoes/news
--Click on the links under “Updated weekly reports” for details on trap captures
-Click on the “Psyllid Management” link on the left panel for information on psyllid and zebra chip biology and management.
» https://potatoes.decisionaid.systems/
2021 Idaho Association of Plant Protection - Nov. 3-4, Burley Best Western
All Crops All Locations
Posted on: August 25, 2021 by Jeff Miller
The 2021 Idaho Association of Plant Protection Annual Meeting will be held Wednesday, November 3 at 1:00 pm to Thursday, November 4 at 1:00 pm at the Best Western Inn & Convention Center, Burley, Idaho. Registration will begin at 12:30 PM on Wednesday. The conference will cover all aspects of plant protection including entomology, nematology, weed science, and plant pathology.
Please consider contributing to the meeting research results, observations, unusual pest and disease occurrences, and topics that could be discussed as a group. Each presentation will be allotted a 20-minute time slot. A final program will be advertised in October. Registration begins at 12:30 p.m. on Wednesday and the program will begin at 1:00 p.m. Registration costs $15.00 and can only be made by check or cash. Certified Crop Advisor (CCA) and Pesticide Recertification credits (ISDA) will be available.
Hotel reservations must be made on your own. Special hotel rates have been negotiated for the participants: $89.00 per night for the Burley Inn (www.burleyinn.com or 208-678-3501) and $65.00 for the Budget Motel nearby (www.burleybudgetmotel.com or 208-678-2200). Please refer to the attached hotel flyer.
Please complete the attached form if you want to participate and reply by email to Alexander Karasev (akarasev@uidaho.edu). If you are not attending this meeting but would like to be notified of future meetings, please send us your updated contact information. Responses can be sent to:
Alexander Karasev: akarasev@uidaho.edu
University of Idaho, Dept. of EPPN
Moscow, ID 83844-2329
(208) 885-2350
Please respond by September 17th, 2021. Also, please share with any who may have an interest.
» https://millerresearch.com/event/2021-idaho-association-of-plant-protection/
Psyllid Update August 19, 2021
Potato All Locations
potato psyllid
Posted on: August 19, 2021 by Erik Wenninger
This week we had traps deployed in all 73 fields, though we are still waiting for traps from one field. We found a total of 115 psyllids across 25 (35%) fields.
Overall psyllid captures were slightly lower than last week. Contour maps (see links below) still graphically reflect relatively high abundance of psyllids collected in some fields in the western Treasure Valley. The Elmore County “hot spot” is slightly diminished. Moderate to low captures were recorded in the Magic Valley. We captured two psyllids in Cassia County, but recorded no psyllid captures further east.
Psyllids were collected on sticky traps in potato in the following counties: Canyon (7 fields), Payette (1 field), Gem (1 field), Owyhee (2 fields), Elmore (2 fields), Gooding (1 field), Jerome (2 fields), Twin Falls (7 fields), Cassia (2 fields), and Power (1 field).
Once again, all psyllids tested from last week were negative for Lso, though tests of psyllids from six fields in the western Treasure Valley that arrived late to us last week are still pending. We have yet to find any Lso-positive psyllids this season.
Nevertheless, we urge growers to watch psyllid numbers closely during the coming weeks and to have their IPM programs in place.
More information can be found here: http://www.uidaho.edu/cals/potatoes/news
--Click on the links under “Updated weekly reports” for details on trap captures.
--Click on the “Psyllid Management” link on the left panel for information on psyllid and zebra chip biology and management.
--To view contour maps in more detail, set up a free account here: https://potatoes.decisionaid.systems/
UI Ag Talk Tuesday August 17 11:00 AM- last one for 2021
All Crops All Locations
General announcment
Posted on: August 16, 2021 by Kasia Duellman, Pam Hutchinson, Juliet Marshall
The final University of Idaho Ag Talk Tuesday session is Tuesday, August 17 at 11 AM (MT).
Join and listen to or actively participate in round table crop updates, followed by featured topics.
The Featured topics and presenters for the 8/17 session are:
Seed potato germplasm update — Jenny Durrin, Director, Seed Potato Germplasm Program
Fungicide resistance management and fungicide resistance in Fusarium species — Kasia Duellman, Christy Christian
Registration is required. Please visit our website for more information and to register: www.uidaho.edu/ag-talk
» https://www.uidaho.edu/extension/news/ag-talk-tuesday
» https://uidaho.zoom.us/meeting/register/tZ0pd-ugrzktHdEEbqB3aHk3rlJLgCeSkCLz
2021 Miller Research Potato Pest Management Field Day this Thursday
All Crops All Locations
Posted on: August 16, 2021 by Jeff Miller
The Miller Research Potato Pest Management Field Day will be on Thursday, August 19 from 10:00 am to 12:00 noon. Details can be found at the link below. Two ISDA and two CCA credits are available.
» https://millerresearch.com/event/2021-miller-research-potato-pest-management-field-day/
Psyllid Update August 12, 2021
Potato All Locations
potato psyllid
Posted on: August 12, 2021 by Erik Wenninger
This week we had traps deployed in all 73 fields. However, we are still waiting to receive traps from 8 fields in the Treasure Valley (mostly in Canyon County). Of the 65 fields included in this update, we found a total of 93 psyllids across 19 (29%) fields. Updated data from the 8 missing fields will be added to our sites as soon as possible; almost certainly the overall psyllid tally for the week and especially for Canyon County will tick up a bit.
Overall psyllid captures were similar to last week. Contour maps (see links below) still graphically reflect relatively high abundance of psyllids collected in some fields in Elmore County (though slightly lower than in recent weeks) and the western Treasure Valley, but a small “hot spot” is also developing near Twin Falls. Otherwise, modest captures were recorded elsewhere in the Magic Valley, and we continue to see very few psyllids in the Upper Snake region.
Psyllids were collected on sticky traps in potato in the following counties: Canyon (2 fields), Owyhee (3 fields), Elmore (2 fields), Gooding (1 field), Jerome (2 fields), Twin Falls (7 fields), Cassia (1 field), and Power (1 field).
Once again, all psyllids tested from last week were negative for Lso. We have yet to find any Lso-positive psyllids this season.
Nevertheless, we urge growers to watch psyllid numbers closely during the coming weeks and to have their IPM programs in place.
Contour maps or “heat maps” are included on the UI website (see link below). These maps describe predicted psyllid densities across the landscape, based on our trap counts and on predictive models developed in collaboration with colleagues at Washington State University from our many years of data on psyllids in Idaho. We include just a screenshot of the contour maps on our site, so we encourage stakeholders to visit the Decision Aid Systems site and create a free account to view each week’s maps and other pest data in more detail: https://potatoes.decisionaid.systems/
More information can be found here: http://www.uidaho.edu/cals/potatoes/news
--Click on the links under “Updated weekly reports” for details on trap captures.
--Click on the “Psyllid Management” link on the left panel for information on psyllid and zebra chip biology and management.
Psyllid Update August 5, 2021
Potato All Locations
potato psyllid
Posted on: August 5, 2021 by Erik Wenninger
This week we had traps deployed in all 73 fields monitored this year. We found a total of 94 psyllids across 30 (42%) of the 73 fields.
Overall psyllid captures declined again from last week. Contour maps (see links below) still graphically reflect relatively high abundance of psyllids collected in some fields in Elmore County and the western Treasure Valley, but at least in the Treasure Valley tend to show more moderate incidence of psyllids than last week. Modest captures were recorded in the Magic Valley, and we continue to see very few psyllids in the Upper Snake region.
Psyllids were collected on sticky traps in potato in the following counties: Canyon (9 fields), Owyhee (3 fields), Elmore (2 fields), Gem (1 field), Gooding (2 fields), Jerome (4 fields), Twin Falls (6 fields), Cassia (1 field), Minidoka (1 field), and Bingham (1 field).
All of the psyllids tested from last week and all previous weeks have been negative for Lso.
Nevertheless, we urge growers to watch psyllid numbers closely during the coming weeks and to have their IPM programs in place.
Contour maps or “heat maps” are included on the UI website (see link below). These maps describe predicted psyllid densities across the landscape, based on our trap counts and on predictive models developed in collaboration with colleagues at Washington State University from our many years of data on psyllids in Idaho. We include just a screenshot of the contour maps on our site, so we encourage stakeholders to visit the Decision Aid Systems site and create a free account to view each week’s maps and other pest data in more detail: https://potatoes.decisionaid.systems/
More information can be found here: http://www.uidaho.edu/cals/potatoes/news
--Click on the links under “Updated weekly reports” for details on trap captures.
--Click on the “Psyllid Management” link on the left panel for information on psyllid and zebra chip biology and management.
UI Ag Talk Tuesday August 3 11:00 AM (MT)
All Crops All Locations
General announcment
Posted on: August 3, 2021 by Kasia Duellman
The next University of Idaho Ag Talk Tuesday session is Tuesday, August 3 at 11 AM (MT).
Join and listen to or actively participate in round table crop updates, followed by featured topics.
The Featured topics and presenters for the 8/3 session are:
Teff: benefits, production practices, and current market situation — Ms Ritika Lamichhane, MS student (advised by Olga Walsh, Extension Cropping Systems Agronomy)
Potato cropping systems trials at Aberdeen R&E Center - Pam Hutchinson (Extension Specialist — Potato Cropping Systems Weed Scientist
Selected research projects aimed at managing tuber-borne diseases - Kasia Duellman, seed potato specialist
Registration is required. Please visit our website for more information and to register: www.uidaho.edu/ag-talk
Psyllid Update July 29, 2021
Potato All Locations
Potato Psyllid
Posted on: July 29, 2021 by Lucy Standley
This week we
had traps deployed in all 73 fields monitored this year. We found a total of 126
psyllids across 36 (49%) of the 73 fields.
Psyllids were
collected on sticky traps in potato in the following counties: Canyon (11
fields), Owyhee (2 fields), Elmore (2 fields), Payette (1 field), Gem (1
field), Gooding (2 fields), Jerome (4 fields), Twin Falls (6 fields), Cassia (2
fields), Minidoka (3 field), and Power (2 fields).
Psyllid
captures overall declined a bit from last week. Contour maps (see links below)
still graphically reflect relatively high abundance of psyllids collected in
some fields in the western Treasure Valley and Elmore County, but both areas
show more moderate incidence of psyllids than last week. Moderate captures were
recorded in the Magic Valley, and we continue to see very few psyllids in the
Upper Snake region.
All of the
psyllids tested from previous weeks have been negative for Lso. Samples tested
from last week so far show no evidence of Lso; however, we only have results
from one of the two primers used to test for Lso. Results from the first primer
were all negative, which was sufficient to confirm a negative result in almost all
of our tests during that past ten years. We should have results from the second
primer tomorrow to confirm these results, and we will post another update if
any samples are positive.
We urge growers
to watch psyllid numbers closely during the coming weeks and to have their IPM
programs in place.
Contour maps or
“heat maps” are included on the UI website (see link below). These maps
describe predicted psyllid densities across the landscape, based on our trap
counts and on predictive models developed in collaboration with colleagues at
Washington State University from our many years of data on psyllids in Idaho.
We include just a screenshot of the contour maps on our site, so we encourage
stakeholders to visit the Decision Aid Systems site and create a free account
to view each week’s maps and other pest data in more detail: https://potatoes.decisionaid.systems/
More information
can be found here: http://www.uidaho.edu/cals/potatoes/news
--Click on the
links under “Updated weekly reports” for details on trap captures.
--Click on the
“Psyllid Management” link on the left panel for information on psyllid and
zebra chip biology and management.
Psyllid Update July 22, 2021
Potato All Locations
Potato Psyllid
Posted on: July 22, 2021 by Lucy Standley
This week we
had traps deployed in all 73 fields monitored this year. We found a total of
191 psyllids across 31 (42%) of the 73 fields.
Psyllids were
collected on sticky traps in potato in the following counties: Canyon (11
fields), Owyhee (3 fields), Elmore (2 fields), Payette (1 field), Gem (1
field), Gooding (1 field), Jerome (3 fields), Twin Falls (7 fields), Minidoka
(1 field), and Power (1 field).
All of the
psyllids tested from previous weeks have been negative for Lso, though we are
waiting for results from 32 psyllids from six fields that arrived to us late.
We continue to have issues with shipping times being slower than in previous
years.
Psyllid
captures overall ticked up slightly from last week. Contour maps (see links
below) graphically reflect the relatively high abundance of psyllids collected
in some fields in the western Treasure Valley during the past three weeks, as
well as a “hot spot” that has been growing each week in Elmore County. A small
area west of Twin Falls showed relatively high captures this week as well. Very
few psyllids have been detected in the Upper Snake region thus far.
We urge growers
to watch psyllid numbers closely during the coming weeks and to have their IPM
programs in place.
Contour maps or
“heat maps” are included on the UI website (see link below). These maps
describe predicted psyllid densities across the landscape, based on our trap
counts and on predictive models developed in collaboration with colleagues at
Washington State University from our many years of data on psyllids in Idaho. We
include just a screenshot of the contour maps on our site, so we encourage
stakeholders to visit the Decision Aid Systems site and create a free account
to view each week’s maps and other pest data in more detail: https://potatoes.decisionaid.systems/
More information
can be found here: http://www.uidaho.edu/cals/potatoes/news
--Click on the
links under “Updated weekly reports” for details on trap captures.
--Click on the
“Psyllid Management” link on the left panel for information on psyllid and
zebra chip biology and management.
2021 Miller Research Potato Pest Management Field Day
Potato All Locations
Posted on: July 20, 2021 by Jeff Miller
Miller Research will be holding its annual potato pest
management field day on Thursday, August 19. The event is open to the public
and there is no cost to attend but
please RSVP so we can plan appropriately for the event. This can be
done on our website or by responding to jeff@millerresearch.com or (208)
431-4420. More details can be found by following the attached link.
» https://millerresearch.com/event/2021-miller-research-potato-pest-management-field-day/
UofI Ag Talk Tuesday 2021
All Crops All Locations
General announcment
Posted on: July 19, 2021 by Kasia Duellman
The next Ag Talk Tuesday session is July 20 at 11 AM.
Registration is required (register one time to access all sessions). Click on this link to register: Registration Link
For more information, please visit the Ag Talk Tuesday website:
http://www.uidaho.edu/ag-talk
This week's featured topics and speakers:
- Federal crop insurance 101 — Ben Thiel, Regional Director, USDA-RMA
- Field projects of cropping systems in eastern Idaho — Xi Liang, Associate Professor, Cropping Systems Agronomy
Psyllid Update July 15, 2021
Potato All Locations
potato psyllid
Posted on: July 15, 2021 by Erik Wenninger
This week we
had traps deployed in all 76 fields monitored this year (though we are waiting
to receive traps from 11 sites). We found a total of 76 psyllids across 18 (28%)
of the 65 fields for which we have data. Several of the fields for which we are
waiting for traps are from fields in and near Canyon County in which we found relatively
high numbers of psyllids last week, thus we would expect these figures to tick
up when these data are added.
Psyllids were
collected on sticky traps in potato in the following counties: Canyon (6
fields), Owyhee (2 fields), Elmore (2 fields), Gooding (1 field), Jerome (2
fields), Twin Falls (5 fields), and Bingham (1 field).
All of the
psyllids tested from previous weeks have been negative for Lso, though we are
waiting for results from two individual psyllids from two fields from last week
(the other psyllids tested from those fields were negative).
Psyllid
captures overall are similar to last week. We urge growers to watch psyllid
numbers closely during the coming weeks and to have their IPM programs in place.
Contour maps or
“heat maps” of this week’s and the previous week’s results are included on the
UI website (see link below). These maps describe predicted psyllid densities
across the landscape, based on our trap counts and on predictive models developed
in collaboration with colleagues at Washington State University from our many
years of data on psyllids in Idaho. The maps graphically reflect the relatively
high abundance of psyllids collected in some fields in the western Treasure
Valley during the past two weeks, as well as a “hot spot” in Elmore County.
Abundance of psyllids remains moderate to low in the Magic Valley and very few
psyllids have been detected in the Upper Snake region.
We include just
a screenshot of the contour maps on our site, so we encourage stakeholders to
visit the Decision Aid Systems site and create a free account to view these and
other data in more detail: https://potatoes.decisionaid.systems/
More information
can be found here: http://www.uidaho.edu/cals/potatoes/news
--Click on the
links under “Updated weekly reports” for details on trap captures.
--Click on the
“Psyllid Management” link on the left panel for information on psyllid and
zebra chip biology and management.
Pesticide Credits for Recertification - August 2021
All Crops All Locations
Posted on: July 13, 2021 by Kimberly Tate
The University of Idaho (UI) Extension Pesticide Safety Education Program is offering online webinars for pesticide recertification credit via Zoom video conferencing.
Tuesday, Aug. 3 at 10 AM MDT – Daniel Sandoval, Idaho State Department of Agriculture (ISDA) Pesticide Training Specialist: New ISDA Pesticide and Chemigation Rules
Tuesday, Aug. 17 at 10 AM MDT – Brad Stokes, UI Extension Educator Elmore County: Toxicity and Non-Target Effects of Pesticides to Idaho Pollinators and Beneficial Insects
Each webinar is $10 per applicator. Completed webinars receive one pesticide credit and great information! Note: Enrollment will close 8 AM (Mountain Time) on the day of the webinar.
How to enroll for the webinar(s):
1. Visit our website: https://www.uidaho.edu/extension/ipm.
2. Be prepared to provide your email and applicator license number.
Note: From cals-ipm@uidaho.edu we will send instructions on how to access Zoom (no camera or account required).
For questions or comments, contact Kimberly Tate, UI Extension at ktate@uidaho.edu or (208) 364-4581.
Upcoming Cereal Field Days - Rupert / Minidoka
Small Grains All Locations
Cereals Field Days
Posted on: July 11, 2021 by Juliet Marshall
Upcoming field day this week - Rupert Minidoka!
9:00 AM
Thursday, July 15th
Starting at Winter trials: intersection of 400 E and 900 N. Spring trials: 2 miles east of winter plots on 600 E, 900 N
Hope to see you there!
Cheers,
Juliet
» https://www.uidaho.edu/extension/cereals/scseidaho
» UI_Extension_2021_Cereals_Field_Days_For_Southern_Eastern_ID2.pdf
Psyllid Update July 8, 2021
Potato All Locations
Potato Psyllid
Posted on: July 8, 2021 by Lucy Standley
This week we
had traps deployed in 73 of the 76 fields (96%) monitored this year and we
found a total of 139 psyllids across 30 (41%) of the 73 fields. We are waiting
to receive cards from 9 more sites.
Psyllids were
collected on sticky traps in potato in the following counties: Payette (1
field), Canyon (12 fields), Gem (1 field), Owyhee (3 fields), Elmore (2
fields), Gooding (1 field), Jerome (2 fields), Twin Falls (5 fields), Minidoka
(2 fields), and Power (1 field).
Lso results are
still pending due to shipping delays, but results will be posted on our site
(below) once results are in.
Thus far,
psyllid captures are tending to be a bit higher than they were at this time the
last two years. We urge growers to watch psyllid numbers closely during the
coming weeks and to have their IPM programs in place.
More information
can be found here: http://www.uidaho.edu/cals/potatoes/news
--Click on the
links under “Updated weekly reports” for details on trap captures.
--Click on the
“Psyllid Management” link on the left panel for information on psyllid and
zebra chip biology and management.
Powdery Mildew in Sugarbeets - 2021
Sugarbeets All Locations
Powdery Mildew
Posted on: July 2, 2021 by Jerry Neufeld
Powdery mildew has been found by
The Amalgamated Sugar Company LLC Crop Consultants in sugarbeet fields in the Nyssa, OR area near the
Snake River. There are several
fungicides available for use to treat powdery mildew. Depending on the disease
pressure and chemistry used, applications with different chemistries should be
repeated every 14-21 days. Please be advised that strobilurins could show reduced efficacy due to fungicide
resistance. Always tankmix with at least 5 lbs of sulfur for resistance
management purposes. Contact your Crop Consultant from The
Amalgamated Sugar Company LLC if you have any
questions.
Click on
the link below for the powdery mildew pages in the PNW Plant Disease Management
Handbooks.
» https://pnwhandbooks.org/plantdisease/host-disease/sugar-beet-beta-vulgaris-powdery-mildew
2021 Potato psyllid monitoring program in Idaho
Potato All Locations
potato psyllid
Posted on: July 2, 2021 by Erik Wenninger
The University
of Idaho and our crop consultant collaborators across the state are once again monitoring
for potato psyllids, zebra chip disease (ZC), and liberibacter (Lso), the
bacterium associated with ZC. The monitoring program covers commercial potato
fields throughout southern Idaho and is funded in part by the Idaho Potato
Commission and generous in-kind contributions by our cooperators.
Our official monitoring
season began with wide deployment of traps this week and will continue for 10
to 12 weeks. We should have about 76 fields across the state this year, using 4
sticky traps per field at all sites.
In early to mid-June
we began monitoring in three fields at the Kimberly R&E Center (KREC) and in
eight commercial fields in the Treasure Valley (mostly in Canyon County). On
traps retrieved during the weeks of June 14, 21, and 28, we captured a total of
1, 4, and 8 potato psyllids, respectively, among our fields at KREC. Among seven
of the eight fields in the Treasure Valley, we captured an average of about 2
psyllids per field during each of the last two weeks; however, in one Canyon
County field, we captured 19 psyllids this week.
All psyllids
tested so far from the previous weeks have been negative for Lso. We expect to
have more Lso results next week.
More details and
additional information can be found here: http://www.uidaho.edu/cals/potatoes/news
--Click on the
links under “Updated weekly reports” on the right for details on trap captures.
--Click on the
“Psyllid Management” link on the left panel for information on psyllid and
zebra chip biology and management.
INSECT PHOTOS NEEDED
All Crops All Locations
Posted on: July 2, 2021 by Jerry Neufeld
As a
component of a USDA-funded project, Harnessing
artificial intelligence for implementing integrated pest management in
small-grain production systems, the University of Idaho is
developing a system to automatically
identify insects in wheat and other crops based on submitted cellphone images.
To develop this system, we
need your help with collecting a large number of
photographs of pests and beneficial insects observed in cereal cropping systems
(cereals and rotation crops) throughout the region. We will use these photos
(hopefully thousands) to train our computer algorithm to enable the system to
generate the most accurate identifications of unknown samples.
To help
us develop this tool, please upload insect photographs through this link: https://cerealpestaid.net/
CANCELLED! The July 8th Snake River Weed Control Tour
All Crops All Locations
Posted on: June 22, 2021 by Pamela Hutchinson
The 2021 Snake River Weed Control Tour July 8th at the University of Idaho Aberdeen R&E Center has been cancelled. We hope to see you next year!
July 8th UI Snake River Weed Mgt Tour - Aberdeen R&E Center
All Crops All Locations
Posted on: June 15, 2021 by Pamela Hutchinson
2021 UI Snake River Weed Management Tour – Potatoes and Specialty Crops
Aberdeen R&E Center, Thursday July 8th
Registration begins at 8:30 am
Tour 9a to 12:30p
• Herbicide Tank Mixes for Weed Control in Potatoes.
• Chateau – Fierce – Mauler.
• Anthem Flex Tank Mixtures,
• Sonalan Tank Mixtures for Weed Control in Potatoes.
• Potato Variety Tolerance to Sulfentrazone.
• Potato Variety Tolerance Trials.
• Excess Rainfall Effect on Herbicides and Potato injury.
• Quinoa herbicide screening.
• Litchi tomato herbicide management.
• Herbicide Mechanism of Action Demonstration Plots.
Pest Management Updates and Information:
• Albert Adjesiwor, Weed Scientist, Kimberly R&E Center
Three Idaho Pesticide Applicator Credits will be offered.
For more information contact Pamela J.S. Hutchinson phutch@uidaho.edu 208-681-1304
UI Ag Talk Tuesday June 15, 11AM
All Crops All Locations
General announcment
Posted on: June 15, 2021 by Kasia Duellman
The next Ag Talk Tuesday session is tomorrow, June 15 at 11 AM (MDT).
Registration is required. Register by clicking this link: https://uidaho.zoom.us/meeting/register/tZ0pd-ugrzktHdEEbqB3aHk3rlJLgCeSkCLz
Or, visit our website for more information: https://www.uidaho.edu/extension/news/ag-talk-tuesday
The live session will begin with a roundtable crop update - listen, contribute, discuss current season crop issues. Crop updates are followed by featured presentations by guest speakers.
June 15 featured presentations:
— PVP and Title V and the implications and impacts for producers — Jeremy Tamsen, Director, Office of Technology Transfer
- If you have questions related to what PVP and Title V mean to saving and selling seed, then please join us for Jeremy Tamsen’s presentation and discussion!
— Post-emergence herbicides for broadleaf and grass control in potatoes — Pam Hutchinson, UI Associate Professor & Extension Specialist (Potato Cropping Systems Weed Scientist)
» https://uidaho.zoom.us/meeting/register/tZ0pd-ugrzktHdEEbqB3aHk3rlJLgCeSkCLz
UI Ag Talk Tuesday June 1 at 11:00 AM
All Crops All Locations
Posted on: May 31, 2021 by Kasia Duellman
Please Join us for the next Ag Talk Tuesday, June 1 at 11 AM.
These online, live sessions are held every first and third Tuesday of May, June, July and August and they begin with a round table of crop updates followed by Guest Speakers presenting Featured Topics. This week's session's Featured Topics are:
Farm stress management — Lance Ellis, Lance Hansen
Post-emergence herbicides for broadleaf and grass control in potatoes — Pam Hutchinson
If you haven't already registered,
Register here: https://uidaho.zoom.us/meeting/register/tZ0pd-ugrzktHdEEbqB3aHk3rlJLgCeSkCLz
More information is available online at https://www.uidaho.edu/extension/news/ag-talk-tuesday
We hope to see you there!
Sincerely,
Your Ag Talk Tuesday Organizers:
Kasia Duellman (kduellman@uidaho.edu)
Pamela J.S. Hutchinson (phutch@uidaho.edu)
Juliet Marshall (jmarshall@uidaho.edu)
EPA has extended the delay for respirator fit testing until September 30, 2021.
All Crops All Locations
Posted on: May 21, 2021 by Jerry Neufeld
Due to
the COVID19 pandemic, and concerns about obtaining respirators and annual fit
testing as required by the WPS, EPA has provided guidance for delaying the
annual fit testing. This delay will be effective until September 30,
2021. EPA expects employers and handlers to make every effort to
comply with all pesticide label and Agricultural WPS requirements.
If all
options to find new respirators and get handlers fit tested, are exhausted,
EPA's guidance provides the following additional options:
- Reuse and extend use of disposable N95 filter facepiece
respirators, - Use of "expired" respirators,
- Use of respirators certified in certain other countries
or jurisdictions meeting protective conditions outlined, - Delay the annual respirator "fit
test".
Potential
risk to handlers can be minimized if the handlers and the employers comply with
all other requirements of the WPS and pesticide labels if:
- Handlers have received an annual fit test during
calendar year 2019 or 2020 and continue to use that specific respirator
make and model, - Handlers have not had a physiological change that
affects the seal (e.g. 20lb. weight loss or gain, facial surgery, scarring
since last fit test), - Handler employer can demonstrate that the handler
received respirator training in the previous 12 months.
THIS
AMENDMENT TO THE WPS EXPIRES SEPTEMBER 30, 2021.
Click
on the line below for more information from the EPA.
Sugarbeet Root Maggot - 2021
Sugarbeets All Locations
sugarbeet root maggot
Posted on: May 19, 2021 by Jerry Neufeld
The growing degree day calculator (gdd) (hosted by the
Integrated Plant Protection Center at Oregon State University; http://uspest.org/cgi-bin/ddmodel.us)
for the sugarbeet root maggot fly shows that—depending on your location in the
Treasure Valley— the peak flight of root maggot flies began a few days
ago. The gdd model does an excellent job
of predicting peak flight, but monitoring with orange sticky stake traps is the
best way to get local information on fly numbers for a given field to determine
if you have the threshold numbers of flies.
Root maggot flies will lay eggs near sugarbeet plants. After
the larvae hatch they will begin feeding on the young sugarbeets. Look for
these pests to appear in the western end of the Treasure Valley first. The optimal timing for applying granular
insecticides against root maggots is within 10 days of peak flight. Granular insecticides must be watered in well
to get good uptake by the sugarbeets. The
Amalgamated Sugar Company field consultants are reporting that root maggot fly pressure
appears to be light at the moment in the Treasure Valley, but there are some
elevated levels of root maggot flies in eastern Idaho . If you suspect you are having issues with these
pests contact your TASCO field consultant.
Click on the links below for control information from the PNW Insect
Control Handbook and the TASCO “Fly Monitoring Readings”.
» https://pnwhandbooks.org/insect/agronomic/sugar-beet/sugar-beet-sugar-beet-root-maggot
Ag Talk Tuesday - May 18 at 11 AM
All Crops All Locations
Ag Talk Tuesday
Posted on: May 14, 2021 by Juliet Marshall
May 18 — Idaho Insect Identification website overview — Brad Stokes, Jason Thomas & Aquifer recharge program — Keith Esplin — Juliet Marshall (host)
| KASIA M. DUELLMAN, Ph.D. Assistant Professor and Extension Seed Potato Specialist College of Agricultural and Life Sciences Entomology, Plant Pathology and Nematology kduellman@uidaho.edu webpages.uidaho.edu/extension-seed-potato/ 208-757-5476 | 701-793-9456 (Cell) U of I Idaho Falls | 1776 Science Center Drive, Suite 205 | Idaho Falls ID 83402 | United States |
Ag Talk Tuesday Resume TOMORROW May 4
All Crops All Locations
Posted on: May 3, 2021 by Kasia Duellman
Ag Talk Tuesday resumes tomorrow May 4, 11AM to 1PM (MDT).
All sessions will be held on the first and third Tuesdays, May through August.
Registration is required. Register here: https://uidaho.zoom.us/meeting/register/tZ0pd-ugrzktHdEEbqB3aHk3rlJLgCeSkCLz
For more information and a schedule of topics, please visit our website: https://www.uidaho.edu/extension/news/ag-talk-tuesday
» https://www.uidaho.edu/extension/news/ag-talk-tuesday
» https://uidaho.zoom.us/meeting/register/tZ0pd-ugrzktHdEEbqB3aHk3rlJLgCeSkCLz
Ag Talk Tuesday resumes!
All Crops All Locations
Ag Talk Tuesday
Posted on: April 23, 2021 by Juliet Marshall
Greetings!
We are excited to announce that the University of Idaho Extension's Ag Talk Tuesday sessions will resume May 4 for the 2021 season.
As usual, these sessions will be held on the first and third Tuesdays of May, June, July and August, from 11AM to 1PM (MDT).
You can find a schedule (subject to change) and more information on our website: https://www.uidaho.edu/extension/news/ag-talk-tuesday
Registration is required to attend. You only need to register once to attend all sessions. Once you register, information on how to attend via Zoom or by calling in by phone will be sent to you in a separate email.
To register, click this link (or copy and paste it into your web browser): https://uidaho.zoom.us/meeting/register/tZ0pd-ugrzktHdEEbqB3aHk3rlJLgCeSkCLz.
Please join us starting May 4 at 11 AM (MDT) for these online, live, interactive sessions that focus on agriculture - current season issues related to pests, diseases, weeds, diagnostics, soil health, irrigation, agronomy & more along with featured topics and guest speakers.
For questions, please contact one of the organizers: Kasia Duellman (kduellman@uidaho.edu), Pam Hutchinson (phutch@uidaho.edu), or Juliet Marshall (jmarshall@uidaho.edu).
| KASIA M. DUELLMAN, Ph.D. Assistant Professor and Extension Seed Potato Specialist College of Agricultural and Life Sciences Entomology, Plant Pathology and Nematology kduellman@uidaho.edu webpages.uidaho.edu/extension-seed-potato/ 208-757-5476 | 701-793-9456 (Cell) U of I Idaho Falls | 1776 Science Center Drive, Suite 205 | Idaho Falls ID 83402 | United States |
» https://uidaho.zoom.us/meeting/register/tZ0pd-ugrzktHdEEbqB3aHk3rlJLgCeSkCLz
Educational Video-Monitor Flying Insects to Improve Management
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Posted on: March 3, 2021 by Jason Thomas
Do you know what types of insects are entering your field and garden at different times of the year? Would you like more information to help you decide when to implement pest control actions? The University of Idaho Extension just recently released this 5 minute video to demonstrate a way to monitor for flying insects entering your crop or garden. Click the link below to watch.
https://youtu.be/9C-V09gDfY8
Monitoring insects entering your field/garden can help you know when to take specific control actions. For example, in seed potato production it is a critical practice to help us monitor when aphids potentially harboring viruses enter a field. The traps do most of the work for you. You just have to check it every so often and maintain it over the growing season. Utilizing traps can be a helpful way to implement integrated pest management into your operation.
For other insect trapping/monitoring ideas the following demonstrational videos may be helpful:
Pit Fall Traps (For walking/ground insects): https://www.youtube.com/watch?v=4k7I4cdKnMI
Collecting Insects with a Wet Shovel (For Small Crop Pests Like Thrips): https://www.youtube.com/watch?v=jC1g8QJDTYk
Jason Thomas
Extension Educator & Entomologist, U of I Extension
85 E Baseline Rd, Rupert, ID 83350
jasont@uidaho.edu
» https://youtu.be/9C-V09gDfY8
Chlorpyrifos Survey
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Posted on: February 21, 2021 by Stuart Reitz
Please help us gather valuable information about chlorpyrifos (Lorsban and related insecticide products).
Restrictions on the use of chlorpyrifos and the complete revocation of its registration are under way. Our team has initiated a cross-commodity collaborative research project to identify viable options as alternatives to chlorpyrifos. Research will be conducted at several locations in Oregon to determine the efficacy of currently registered chemistries and newer products in onion, corn, cherries, grass seed, and clover seed. This survey will provide critical information on the use of chlorpyrifos across all crops and will help us identify issues to improve our research project.
https://oregonstate.qualtrics.com/jfe/form/SV_28ZDP4ZJ282CcES
Survey participants are eligible for a $25 gift card.
If you have questions or comments about the project, please contact Silvia Rondon, Project Leader, OSU Hermiston Agricultural Research and Extension Center, 541-567-8321, silvia.rondon@oregonstate.edu.
Sent on behalf of project team: Silvia Rondon, Stuart Reitz, Navneet Kaur, Daniel Lightle, and Chris Adams.
Thank you for your assistance,
» https://oregonstate.qualtrics.com/jfe/form/SV_28ZDP4ZJ282CcES
Research and Outreach Programming for Pulse Crops
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Posted on: February 9, 2021 by Jerry Neufeld
Montana State University needs your help to improve our research and outreach programing for pulse crops. We’ve created a survey to help us collect information that will directly impact what we research, how we develop our future programming, and also increase our ability to apply for pulse crop research funding.
The survey should take about 10 minutes to complete. You can use your phone, computer, or tablet.
Your responses are completely anonymous – we have no way of connecting people to answers. Also, the data we collect are always aggregated (all answers summarized together), so that individual responses are never seen by anyone but the researchers.
Here’s a link to the survey: https://bit.ly/Pulses2021; you can copy it into your browser.
If you have any questions about the survey or our research, please don’t hesitate to contact Mary Burrows at mburrows@montana.edu or my research associate at monica.brelsford@montana.edu or by phone at (406) 994-5155.
Thank you for helping out research and Extension!
2021 Miller Research Potato Disease Management Seminars
Potato All Locations
Posted on: January 28, 2021 by Jeff Miller
Due to the COVID-19 pandemic, Miller Research will not be holding its annual Potato Pest Management Meeting. Instead, we will be having four 1-hour virtual seminars where we will discuss four different topics related to potato disease management. One CCA (integrated pest management) credit and one ISDA pesticide recertification credit have been awarded for each session. You will be required to answer some participation questions in order to get the ISDA credit. Each session will run from 12:00 noon to 1:00 pm. Registration is free.
Meetings will be held by Zoom and registration is required separately for each session. To register for each session, click on the link. You will be taken to a page where you need to enter your name and email address. After successfully registering, you will receive a confirmation email that contains the link to log into the session.
Pre-License Online Training
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Posted on: January 27, 2021 by Jerry Neufeld
The University of Idaho will be conducting an online Pre-License Training for those people wanting to receive training prior to taking the examinations for a pesticide applicator license. Click on the pdf below for more information.
2021 Virtual Bean School
Dry Beans All Locations
Posted on: January 12, 2021 by Jerry Neufeld
The 2021 Treasure Valley and Magic Valley Bean Schools will be virtual this year. The Bean School will be held January 27 and 28 in the morning. There will be 2 Idaho pesticide licenses credits available. Click on the pdf below for more information.
Idaho and Eastern Oregon Onion Crop Protection Zoom Meeting
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Posted on: January 6, 2021 by Jerry Neufeld
The Idaho and Eastern Oregon Onion Crop Protection Meeting will be on Zoom this year. It will be held Tuesday, February 2nd from 9 am to 12 pm. Click on the pdf below for the link and more information. There will be one Idaho license credit.
» Idaho_Eastern_Oregon_Onion_Crop_Protection_Meeting_agenda.pdf
Virtual Idaho Potato Conference January 19-21, 2021
Potato All Locations
Idaho Potato Conference
Posted on: January 4, 2021 by Nora Olsen
Registration is open! Plan to attend the 53rd annual Idaho Potato Conference January 19-21, 2021. Given the unusual times of a global pandemic, the Idaho Potato Conference shifted from the annual in-person conference held in Pocatello to three days of virtual presentations. The 20-minute pre-recorded presentations with an additional 5 minutes of live Q and A will be given throughout the morning of each day (8 am to noon MT). In addition, 5-minute updates by leading potato industry companies will be included each day.
Spanish Language Session will also be offered virtually for 2021. This session will be held from 1 to 3 pm on January 19th. Topics in Spanish will include reducing bruise, grading potatoes, common storage disease and much more. There will be short videos and live discussions led by University of Idaho extension educators Joseph Sagers and Jason Thomas.
Highlights for this year’s three-day virtual conference include:
• The virtual format allows us to invite many of our colleagues from outside of Idaho. We are pleased to have
o Dr. Paul Bethke from USDA-ARS in Wisconsin to discuss “Tuber lenticels”— what is their function and why do they become enlarged?
o Dr. Andy Robinson from North Dakota University/University of Minnesota – to elaborate on the seasonal topic of “Managing brown center and hollow heart”
o Dr. Ken Frost from Oregon State University will provide a much-needed summary on the “Blackleg/soft rot disease in potatoes”
o Dr. Mark Pavek from Washington State University will provide “Cultural management updates on Clearwater Russet and Alturas” and his graduate student Francisco Gonzalez will provide new (and old) information on “Measuring soil moisture in potato fields”
• The remainder of the 20-minute presentations will focus on a wide variety of topics:
o Changes in potato quality during packing and shipping
o Factors that impact development of bruises
o Analyzing the annual Idaho potato price change during crop transition
o What makes new varieties better than Burbank?
o Susceptibility of russet cultivars to common potato diseases
o Learning to use growth regulators
o Managing early die in potatoes
o Best management practices for pink rot and Pythium leak
o Soil-borne diseases – what causes them and what you can do about it
o Potato Mop Top virus (PMTV) and other viruses
o Diagnosing and predicting foliar diseases in Idaho
o What happened to Zebra Chip in ID?
o Variety reaction to Zebra Chip and interaction with PVY
o Volunteer potato control
o Using plant-pest interactions to build resistance
o What does healthy soil look like in Southern Idaho?
o Sustainability and the potato industry: working together to meet customer and consumer demands
o Idaho Potato Commission update
Idaho Pesticide License Recertification credits (3) will be available on January 20th. Attendees are required by ISDA to pass a short on-line quiz to receive credits.
Registration is free, but you must register in advance—including the Spanish language session. Additional details regarding the agenda, topics, and registration can be found at the conference website www.uidaho.edu/cals/potatoes/news/idaho-potato-conference.
» https://www.uidaho.edu/cals/potatoes/news/idaho-potato-conference
PNWPestAlert.net surveys
Announcements All Locations
Posted on: December 21, 2020 by Jerry Neufeld
Thanks to everyone that completed a 2020 PestAlert.net survey. Mia, Cody and Tom were randomly selected for the Amazon gift cards. They will be put in the mail today.
2020 Idaho Association of Plant Protection Annual Meeting update
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Posted on: October 28, 2020 by Jeff Miller
With the current situation regarding COVID-19, the Idaho Association of Plant Protection has decided to not hold an in-person meeting in 2020. Instead, we will meet virtually using Zoom. There will be no cost to participate in the meeting.
The program will run from 1:00 PM to 5:00 PM on Wednesday, November 4, and 8:00 AM to 12:00 PM on Thursday, November 5. A total of 7.5 Certified Crop Advisor (CCA) and 7 ISDA Pesticide Recertification credits (ISDA) are available. Participants wishing to get ISDA credits will need to pass an online test as a way to verify attendance.
Information on the agenda and how to register can be found in the attached flier and link.
» https://millerresearch.com/event/2020-idaho-association-of-plant-protection-annual-meeting/
Lso results delayed
Potato All Locations
Potato Psyllid
Posted on: September 17, 2020 by Lucy Standley
Last week’s Lso results are delayed because of the shutdown of main campus buildings due to wildfire smoke. We expect to post the results to our website by the end of next week. Sorry for any inconvenience.
More information can be found here: http://www.uidaho.edu/cals/potatoes/news
--Click on the links under “Updated weekly reports” for details on trap captures.
--Click on the “Psyllid Management” link on the left panel for information on psyllid and zebra chip biology and management.
University of Idaho Pesticide Recertification Webinar Series, Fall 2020
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Posted on: September 15, 2020 by Jerry Neufeld
The University of Idaho Pesticide Recertification trainings will not be the same this fall as they have been in the past years. In many cases, if not all, in person training will not be offered. However, you will still be able to get the credits needed for your license. Click on the pdf below for information on how to get license credits through the University of Idaho Pesticide Recertification Webinar Series.
Fall 2020 ISDA Pesticide Disposal Program
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Posted on: September 15, 2020 by Jerry Neufeld
The Idaho State Department of Agriculture has released their schedule for the fall 2020, Pesticide Disposal Program. Click on the pdf below for all the details.
Final psyllid trap capture report for the 2020 season
Potato All Locations
potato psyllid
Posted on: September 10, 2020 by Erik Wenninger
This week we had traps deployed in 45 of the 65 fields (69%) monitored this year; 20 fields had been vine killed and were not monitored. We found a total of 105 psyllids across 16 (35%) of the 45 fields.
Psyllids were collected on sticky traps in potato in the following counties: Canyon (5 fields), Owyhee (1 field), Elmore (4 fields), Twin Falls (5 fields), and Power (1 field).
From last week’s samples, no psyllids tested positive for Lso (liberibacter), the bacterium associated with zebra chip disease (ZC).
We are not including “heat maps” this week given that they tend to show skewed patterns with smaller sample sizes.
This week concludes our 2020 psyllid monitoring program, following recommendations from our ZC Advisory Committee of shortening the duration. However, we will report on the last set of Lso results next week.
Total psyllid captures are still down from two weeks ago and based on previous years’ observations we would expect their numbers to continue to reduce; however, psyllids likely will continue dispersing among the remaining fields as vine kill continues. Overall captures of psyllids this season were higher than the last two seasons, though still nowhere near as high as the “epic” years of 2016 and 2012. Thus far, we have also seen our lowest incidence of Lso-positive psyllids yet (0.4%). Together, we expect that the modest psyllid abundance and very low Lso incidence this year should result in relatively low incidence of ZC in harvested tubers. But remember that, at least in our experiments with Russet Burbank, some risk of ZC remains if infection occurs within 1-2 weeks before vine kill.
More information can be found here: http://www.uidaho.edu/cals/potatoes/news
--Click on the links under “Updated weekly reports” for details on trap captures.
--Click on the “Psyllid Management” link on the left panel for information on psyllid and zebra chip biology and management.
September 3, 2020 Psyllid Monitoring Update
Potato All Locations
Potato Psyllid
Posted on: September 3, 2020 by Lucy Standley
This week we had traps deployed in 48 of the 65 fields (73%) monitored this year; 17 fields have been vine killed and will no longer be monitored. We found a total of 92 psyllids across 18 (37%) of the 48 fields.
Psyllids were collected on sticky traps in potato in the following counties: Canyon (7 fields), Owyhee (1 field), Elmore (4 fields), Twin Falls (4 fields), and Power (2 fields).
From last week’s samples, no psyllids tested positive for Lso (liberibacter), the bacterium associated with zebra chip disease (ZC). However, due to shipping delays from last week, a few Lso results will be delayed until next week.
We are not including “heat maps” this week given that they tend to show skewed patterns with smaller sample sizes.
Total psyllid captures were down considerably this week, which was related to fewer fields being monitored but also fewer captures in most of the remaining fields. It appears that we saw peak seasonal captures last week. However, remember that, at least in our experiments with Russet Burbank, some risk of ZC remains if infection occurs within 1-2 weeks before vine kill.
More information can be found here: http://www.uidaho.edu/cals/potatoes/news
--Click on the links under “Updated weekly reports” for details on trap captures.
--Click on the “Psyllid Management” link on the left panel for information on psyllid and zebra chip biology and management.
August 28, 2020 First Lso-positive psyllid found in Canyon County
Potato All Locations
Potato Psyllid
Posted on: August 28, 2020 by Lucy Standley
This week we had traps deployed in 60 of the 65 fields (92%) monitored this year; five fields have been vine killed and will no longer be monitored. We found a total of 199 psyllids across 35 (58%) of the 60 fields.
Psyllids were collected on sticky traps in potato in the following counties: Payette (1 field), Canyon (12 fields), Owyhee (2 fields), Gem (1 field), Elmore (5 fields), Gooding (1 field), Jerome (4 fields), Twin Falls (6 fields), and Power (3 field).
From last week’s samples, one psyllid (collected in Canyon County) tested positive for Lso (liberibacter), the bacterium associated with zebra chip disease (ZC). However, due to shipping delays from last week, a few Lso results will be delayed until next week.
“Heat maps” of this week’s results are included on the UI and WSU websites (see links below). “Heat maps” describe predicted psyllid densities across the landscape, based on our trap counts and on predictive models developed over six years of psyllid monitoring in Idaho. The heat maps graphically reflect the relatively high abundance of psyllids collected in some fields in Canyon and Twin Falls counties.
Total psyllid captures were the highest we have observed this year, which is not surprising given that captures typically increase toward the end of the season, likely in part due to increase dispersal in relation to senescence and vine kill. We continue to urge growers to maintain their IPM programs. Tubers may still be at high risk of ZC if infection occurs 3 or more weeks before vine kill; in our experiments with Russet Burbank, risk diminishes within 1-2 weeks before vine kill but does not disappear.
More information can be found here: http://www.uidaho.edu/cals/potatoes/news
--Click on the links under “Updated weekly reports” for details on trap captures.
--Click on the “Psyllid Management” link on the left panel for information on psyllid and zebra chip biology and management.
» http://www.uidaho.edu/cals/potatoes/news
Idaho Association of Plant Protection 2020 Annual Meeting - November 4-5
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Posted on: August 20, 2020 by Jeff Miller
With the current situation regarding COVID-19, the Idaho Association of Plant Protection has decided to not hold an in-person meeting in 2020. Instead, we will meet virtually using Zoom. This is an invitation and call for virtual presentations covering all aspects of plant protection including entomology, nematology, weed science, and plant pathology.
Please consider contributing research results, observations, unusual pest and disease occurrences and topics that could be discussed as a group, etc. to the meeting. We currently envision allotting each presentation a 20-minute time slot, but this may be adjusted based on the number of submissions.
Traditionally the program has gone from 1:00 PM to 5:00 PM on Wednesday and 8:00 AM to 12:00 PM on Thursday. The length of the program will be dictated by the number of submissions. A final program will be advertised in October. Participation in the meeting will be free. We will attempt to certify the meeting for Certified Crop Advisor (CCA) and Pesticide Recertification credits (ISDA).
Please reply by email if you would like to attend, or if you would like to present.
August 20, 2020 Psyllid Monitoring Update
Potato All Locations
Potato Psyllid
Posted on: August 20, 2020 by Lucy Standley
This week we had traps deployed in 62 of the 65 fields (95%) monitored this year; three fields have been vine killed and will no longer be monitored. We found a total of 124 psyllids across 26 (41%) of the 62 fields. Of the 124 psyllids captured, 59 (47%) were found across 3 fields at University of Idaho Kimberly Research Center (KREC).
Psyllids were collected on sticky traps in potato in the following counties: Payette (1 field), Canyon (10 fields), Owyhee (1 field), Gem (2 fields), Elmore (5 fields), Jerome (2 fields), Twin Falls (4 fields), and Power (1 field).
From last week’s samples, no psyllids so far have tested positive for Lso (liberibacter), the bacterium associated with zebra chip disease (ZC). However, due to shipping delays from last week, a few Lso results will be delayed until next week.
“Heat maps” of this week’s results are included on the UI and WSU websites (see links below). “Heat maps” describe predicted psyllid densities across the landscape, based on our trap counts and on predictive models developed over six years of psyllid monitoring in Idaho. The heat maps graphically reflect the relatively high abundance of psyllids collected in some fields in Twin Falls County.
Total psyllid captures dropped notably relative to last week, though high captures were still observed at KREC. We continue to urge growers to have their IPM programs in place, especially where psyllid numbers have been relatively high. Tubers may still be at high risk of ZC if infection occurs 3 or more weeks before vine kill; in our experiments with Russet Burbank, risk diminishes within 1-2 weeks before vine kill but does not disappear.
More information can be found here: http://www.uidaho.edu/cals/potatoes/news
--Click on the links under “Updated weekly reports” for details on trap captures.
--Click on the “Psyllid Management” link on the left panel for information on psyllid and zebra chip biology and management.
» http://www.uidaho.edu/cals/potatoes/news
Pesticide Math Training, Online
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Posted on: August 19, 2020 by Kimberly Tate
The UI Extension Pesticide Safety Education Program has produced three educational online training courses available for pesticide applicators, Master Gardeners, and homeowners. The Calculate Pesticides series includes real-world pesticide calculations in the following courses:
1) General Math – review basic math concepts needed for calculating pesticides.
2) Using Sprayers – develop math skills for calibrating yourself to application equipment.
3) Application Rates – identify the math formulas necessary to calculate pesticide application rates.
Simply, create your account at the National eXtension website by using this address https://campus.extension.org/course/view.php?id=1588 (also linked below). Each user must have their own identification name and password. Once you confirm your free account, you will have unlimited access to these online educational materials. If you have any questions, please contact Kimberly Tate at ktate@uidaho.edu.
Aug 18 - Ag Talk Tuesday - Last one for 2020!
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Ag Talk Tuesday - ATT - last one of the season!
Posted on: August 17, 2020 by Kasia Duellman, Juliet Marshall, Pam Hutchinson
August 18 - 11:00 AM Mountain, Please join us for the final Ag Talk Tuesday of the 2020 growing season! We will provide crop updates followed by two guest speakers:
Jason Thomas will discuss Starling Management on Dairies. Linda Schott will discuss Soil Health Assessment.
Information in regards to registration are available at:
https://webpages.uidaho.edu/extension-seed-potato/ATT.html
The Zoom meeting ID for those who have already registered is: Meeting ID: 349 427 773
» https://webpages.uidaho.edu/extension-seed-potato/ATT.html
University of Idaho Small Grains Extension Variety Trial Results Are Available
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Posted on: August 13, 2020 by Juliet Marshall
https://cropalerts.org/news/
It's harvest time for small grains!
The Preliminary Extension Variety Trial Results will be posted to https://cropalerts.org/news/ as they become available. If you wish to receive announcements via email, please email me at jmarshall@uidaho.edu
Currently, Kimberly Winter Wheat, Rupert Spring wheat and Rupert spring barley results are posted.
Also, if you haven't gotten a chance to view the Southeastern Idaho Cereal Variety VIRTUAL Field Day, the presentations are also available at both Crop Alerts and my cereals homepage.
August 13, 2020 Psyllid Monitoring Update
Potato All Locations
Potato Psyllid
Posted on: August 13, 2020 by Lucy Standley
This week we had traps deployed in 64 of the 65 fields (98%) monitored this year; one field has been vine killed and will no longer be monitored. We found a total of 181 psyllids across 25 (39%) of the 64 fields. Of the 181 psyllids captured, 115 psyllids (63%) were found across 3 fields at University of Idaho Kimberly Research Center (KREC). Because this is an unusually high number of psyllids, we will only be testing a subset for Lso at this time.
Psyllids were collected on sticky traps in potato in the following counties: Payette (1 field), Canyon (8 fields), Owyhee (1 field), Gem (1 field), Elmore (2 fields), Gooding (1 field), Jerome (1 field), Twin Falls (8 fields), and Power (2 fields).
From last week’s samples, no psyllids tested positive for Lso (liberibacter), the bacterium associated with zebra chip disease (ZC).
“Heat maps” of this week’s results are included on the UI and WSU websites (see links below). “Heat maps” describe predicted psyllid densities across the landscape, based on our trap counts and on predictive models developed over six years of psyllid monitoring in Idaho. The heat maps graphically reflect the relatively high abundance of psyllids collected in some fields in Twin Falls County.
Total psyllid captures were higher this week; however, captures for most fields were lower, and this increase can be attributed to surprisingly high captures at KREC. Captures were relatively high in a few other Magic Valley fields, though not to the extent observed at KREC. The reason for this is not clear. We continue to urge growers to have their IPM programs in place.
More information can be found here: http://www.uidaho.edu/cals/potatoes/news
--Click on the links under “Updated weekly reports” for details on trap captures.
--Click on the “Psyllid Management” link on the left panel for information on psyllid and zebra chip biology and management.
» http://www.uidaho.edu/cals/potatoes/news
On-line resources to help minimize potato bruise at harvest
Potato All Locations
Posted on: August 10, 2020 by Nora Olsen
Potato harvest is upon us in Idaho and new on-line resources are available at the University of Idaho to help in bruise and quality management. Written and video resources can be found at www.uidaho.edu/cals/potatoes/bruise-management.
A new bulletin on ‘Monitoring tools for a potato bruise prevention program’ is now posted. This bulletin highlights tools or methods to quickly identify where in harvest and handling operation potatoes may experience physical impacts that cause blackspot and shatter bruises. The bulletin outlines a relatively simple and quick way to detect shatter bruises with the use of an iodine solution. The coloration of the shatter bruises makes it easy to determine the number and severity of the bruises. Although blackspots bruises take time to develop, recent research on Russet Burbank, Ranger Russet and Russet Norkotah indicates the ability to see a majority of the bruises within 3-5 hours after harvest. Peeling potatoes to identify early blackspot bruise symptoms is a useful monitoring tool that can help pinpoint equipment that needs to be adjusted. Another option is to run an instrumented sphere though your operation to measure the acceleration of an impact. The shape and size of the instrumented sphere mimics a potato, making it very useful tool to help identify handling equipment that may be at higher risk for bruising. Monitoring shatter and blackspot bruise levels during harvest and handling operations with the tools outlined in this bulletin provides opportunities to modify equipment and conditions; and also to identify lots or fields that have a greater degree of bruise. Training videos are also available on the website. These 3-minutes videos highlight how to run and operate equipment associated with harvest and handling of potatoes in order to prevent bruising and maximize crop quality. Available videos include:
- Windrower operation (English and Spanish)
- Harvester operation (English and Spanish)
- Moving potatoes from truck to piler (English)
- Best practices for piling potatoes (English and Spanish)
- Unloading potatoes out of storage (English)
Psyllid Update August 6, 2020
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Potato Psyllid
Posted on: August 6, 2020 by Lucy Standley
This week we had traps deployed in 64 of the 65 fields (98%) monitored this year; one field has been vine killed and will no longer be monitored. We found a total of 132 psyllids across 31 (48%) of the 64 fields, though we are still waiting for traps from one site in Canyon county.
Psyllids were collected on sticky traps in potato in the following counties: Payette (1 field), Canyon (9 fields), Owyhee (2 field), Gem (2 fields), Elmore (4 fields), Jerome (2 fields), Twin Falls (10 fields), and Oneida (1 field).
From last week’s samples, no psyllids tested positive for Lso (liberibacter), the bacterium associated with zebra chip disease (ZC). We are waiting on results for 2 psyllids (1 each from Gem and Minidoka counties), which we should have next week.
“Heat maps” of this week’s results are included on the UI and WSU websites (see links below). “Heat maps” describe predicted psyllid densities across the landscape, based on our trap counts and on predictive models developed over six years of psyllid monitoring in Idaho. The heat maps graphically reflect the relatively high abundance of psyllids collected in some fields in the Treasure Valley and around Twin Falls.
Psyllid captures were slightly higher this week, though similar to total captures during early August last year. We continue to urge growers to have their IPM programs in place.
More information can be found here: http://www.uidaho.edu/cals/potatoes/news
--Click on the links under “Updated weekly reports” for details on trap captures.
--Click on the “Psyllid Management” link on the left panel for information on psyllid and zebra chip biology and management.
» http://www.uidaho.edu/cals/potatoes/news
Welcome Albert Adjesiwor, Ph.D. as U of I new Weed Scientist
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Posted on: August 4, 2020 by Nora Olsen
The University of Idaho welcomes Albert Adjesiwor, Ph.D. as our new Weed Scientist located at the Kimberly Research and Extension Center. In his new role, Albert will be studying and disseminating information on best weed management practices in agronomic crops, mainly: sugarbeet, dry beans, corn, and small grains. Currently, Albert’s research and extension program is focused on weed seedhead suppression, identifying weed-suppressive cover crops and optimal seeding and termination timing, and assessing the use of integrated weed management approaches to reduce the selection of herbicide-resistant weeds.
Please reach out to Albert with any weed questions or issues in your crops. In addition, Albert is looking for sugar beet fields where there are weed escapes to estimate seed production and screen for resistance. Please contact Albert if you have weeds in your sugar beet fields. His contact is aadjesiwor@uidaho.edu and 208-423-6616.
UI Ag Talk Tuesday August 4 11:00 AM to 1:00 PM (MT)
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General announcment
Posted on: July 31, 2020 by Kasia Duellman
Join us this Tuesday August 4 at 11:00 AM (MT)) for our next Ag Talk Tuesday session. Current updates on crop pests and diseases are provided by UofI and industry participants, folllowed by one or two featured topics. For the next session, Ben Eborn will present on Markets and Lide Chen will talk about her work regarding manure, compost, and nutrients. See https://webpages.uidaho.edu/extension-seed-potato/ATT.html for more information.
Registration is required.
If you have not yet registered for the 2020 Ag Talk Tuesday sessions, register here: https://uidaho.zoom.us/meeting/register/vpAkc-uvqTwpZF4DlEg_ZcN8xYE9ezZSkQ
» https://webpages.uidaho.edu/extension-seed-potato/ATT.html
» https://uidaho.zoom.us/meeting/register/vpAkc-uvqTwpZF4DlEg_ZcN8xYE9ezZSkQ
Another Lso-positive psyllid
Potato All Locations
Potato Psyllid
Posted on: July 30, 2020 by Lucy Standley
This week we had traps deployed in 65 of the 65 fields (100%) monitored this year; we found a total of 114 psyllids across 28 (43%) of the 65 fields.
Psyllids were collected on sticky traps in potato in the following counties: Payette (1 field), Canyon (10 fields), Owyhee (1 field), Gem (2 fields), Elmore (2 fields), Gooding (1 field), Jerome (2 fields), Twin Falls (7 fields), Minidoka (1 fields), and Power (1 field).
From last week’s samples, one psyllid (collected in Twin Falls County) tested positive for Lso (liberibacter), the bacterium associated with zebra chip disease (ZC). This is the second observation of an Lso-positive psyllid in our monitoring program in as many weeks. Overall incidence of Lso still remains relatively low (about 1% through last week).
“Heat maps” of this week’s results are included on the UI and WSU websites (see links below). “Heat maps” describe predicted psyllid densities across the landscape, based on our trap counts and on predictive models developed over six years of psyllid monitoring in Idaho. The heat maps graphically reflect the relatively high abundance of psyllids collected in the Western Treasure Valley.
Psyllid captures were higher this week, though similar to total captures during late July to early August last year. Given this increase and the additional observation of an Lso-positive psyllid, we continue to urge growers to have their IPM programs in place.
More information can be found here: http://www.uidaho.edu/cals/potatoes/news
--Click on the links under “Updated weekly reports” for details on trap captures.
--Click on the “Psyllid Management” link on the left panel for information on psyllid and zebra chip biology and management.
» http://www.uidaho.edu/cals/potatoes/news
First Lso-positive psyllids in 2020 Idaho monitoring
Potato All Locations
Potato Psyllid
Posted on: July 23, 2020 by Lucy Standley
This week we had traps deployed in 59 of the 65 fields (91%) monitored this year (though we have not yet received traps from 6 of these fields); we found a total of 83 psyllids across 28 (53%) of the 53 fields with data.
Psyllids were collected on sticky traps in potato in the following counties: Canyon (12 fields), Owyhee (2 fields), Gem (2 fields), Elmore (3 fields), Jerome (1 field), Twin Falls (7 fields), Minidoka (2 fields), and Oneida (1 field).
From last week’s samples, two psyllids tested positive for Lso (liberibacter), the bacterium associated with zebra chip disease (ZC). These hot psyllids were collected from two different fields: one in Twin Falls and one in Jerome County. This is the first observation of Lso-positive psyllids in our monitoring program this year. This is about one week and two weeks later than the first observation of Lso-positive psyllids during 2019 and 2018, respectively.
“Heat maps” of this week’s results are included on the UI and WSU websites (see links below). “Heat maps” describe predicted psyllid densities across the landscape, based on our trap counts and on predictive models developed over six years of psyllid monitoring in Idaho. These maps, developed in collaboration with WSU, should be used as a guideline, but not a definitive count of the number of insects in any given field at any given point in time. “Low,” “Moderate,” “High,” and “Very High” designations are arbitrary categories that illustrate relative abundance and should not be used as “thresholds.” More details on the “heat maps” can be found in Potato Progress Volume XVII, Number 2, 15 February 2017.
Psyllid captures were a bit higher this week, though similar to total captures during late July to early August last year. Given this increase and the first observation this year of Lso-positive psyllids in Idaho, we urge growers to have their IPM programs in place.
More information can be found here: http://www.uidaho.edu/cals/potatoes/news
--Click on the links under “Updated weekly reports” for details on trap captures.
--Click on the “Psyllid Management” link on the left panel for information on psyllid and zebra chip biology and management.
» http://www.uidaho.edu/cals/potatoes/news
UI Ag Talk Tuesday July 21 at 11:00 AM
All Crops All Locations
General announcment
Posted on: July 20, 2020 by Kasia Duellman
Join us for the next Ag Talk Tuesday, July 21 at 11:00 Am.
Crop updates will be given by willing participants, followed by our featured topic presented by Dean Michael Parrella (University of Idaho - Collage of Agriculture and Life Sciences).
Pre-Registration is required. To register, click the link below:
Register here: https://uidaho.zoom.us/meeting/register/vpAkc-uvqTwpZF4DlEg_ZcN8xYE9ezZSkQ
(You only need to register one time to attend all 2020 sessions.)
More information can be found here:
https://webpages.uidaho.edu/extension-seed-potato/ATT.html
» https://webpages.uidaho.edu/extension-seed-potato/ATT.html
2020 Virtual Potato Association of American Annual Meeting - July 20-22
Potato All Locations
Posted on: July 17, 2020 by Jeff Miller
Due to COVID-19, the Potato Association of America is holding its 2020 annual meeting online. This provides an excellent opportunity for more people to watch the presentations who have not been able to do so in the past.
The Virtual Annual Meeting will take place the afternoons of Monday, July 20th - Wednesday, July 22nd.
You are invited to join us online for educational sessions, poster presentations, and a LIVE Graduate Student Competition, all from the safety and comfort of your own home or office.
Registration is now available online! Limited spots available.
Delegates - $50 registration fee.
Program details and registration can be found at https://amr.swoogo.com/paa2020
As you browse the schedule of events, please note that all times listed are in Eastern Daylight Time (EDT)!
Psyllid Update July 16, 2020
Potato All Locations
Potato Psyllid
Posted on: July 16, 2020 by Lucy Standley
This week we had traps deployed in 56 of the 65 fields (86%) monitored this year and we found a total of 42 psyllids across 22 (39%) of the 56 fields.
Psyllids were collected on sticky traps in potato in the following counties: Payette (1 field), Canyon (4 fields), Gem (2 fields), Elmore (1 field), Jerome (2 fields), Twin Falls (9 fields), Cassia (1 field), Power (1 field), and Oneida (1 field).
The remaining 9 fields (across Bingham and Power counties) had traps deployed in them this week, and we will report data from them next week.
Lso testing of last week’s psyllids has been delayed. We plan to report Lso results next week.
There was also an issue with the generation of “heat maps” that we expect to have resolved by next week.
Psyllid captures were similar to last week and similar to this time last year, though we urge growers to watch psyllid numbers closely during the coming weeks.
More information can be found here: http://www.uidaho.edu/cals/potatoes/news
--Click on the links under “Updated weekly reports” for details on trap captures.
--Click on the “Psyllid Management” link on the left panel for information on psyllid and zebra chip biology and management.
Psyllid Update July 9, 2020
Potato All Locations
Potato Psyllid
Posted on: July 9, 2020 by Lucy Standley
This week we had traps deployed in 56 of the 65 fields (86%) monitored this year and we found a total of 44 psyllids across 22 (39%) of the 56 fields.
Psyllids were collected on sticky traps in potato in the following counties: Payette (1 field), Canyon (6 fields), Gem (2 fields), Elmore (3 fields), Jerome (1 field), Twin Falls (8 fields), and Minidoka (1 field).
From the last two week’s samples, so far 0 psyllids have tested positive for Lso (liberibacter), the bacterium associated with zebra chip disease (ZC). However, we still have one psyllid from last week (collected from Twin Falls county) with pending Lso results.
We apologize for not having “heat maps” yet this week. We expect to have them generated before next week’s update and posted on our website.
Thus far, psyllid captures are similar to this time last year, though we urge growers to watch psyllid numbers closely during the coming weeks.
More information can be found here: http://www.uidaho.edu/cals/potatoes/news
--Click on the links under “Updated weekly reports” for details on trap captures.
--Click on the “Psyllid Management” link on the left panel for information on psyllid and zebra chip biology and management.
UI Ag Talk Tuesday July 7 11:00 AM to 1:00 PM (MT)
All Crops All Locations
General announcment
Posted on: July 6, 2020 by Kasia Duellman
Join us at the next UI Ag Talk Tuesday session - Tuesday July 7 from 11:00 am to 1:00 pm (MT). Each session includes crop updates, current season crop and disease issues, Featured Topics with guest speakers, questions, and discussion. This week's featured topic is "Field projects of cropping systems of alfalfa, quinoa, barley, and wheat," presented by Dr. Xi Liang.
A one-time Registration is Required to be able to attend the 2020 sessions. Instructions on how to join the sessions are provided once you register.
Register here: https://uidaho.zoom.us/meeting/register/vpAkc-uvqTwpZF4DlEg_ZcN8xYE9ezZSkQ
Only four 2020 Ag Talk Tuesday sessions remain: July 7, July 21, August 4, and August 18. More information is available at https://webpages.uidaho.edu/extension-seed-potato/.
» https://uidaho.zoom.us/meeting/register/vpAkc-uvqTwpZF4DlEg_ZcN8xYE9ezZSkQ
2020 Potato psyllid monitoring program in Idaho
Potato All Locations
Potato Psyllid
Posted on: July 2, 2020 by Lucy Standley
The University of Idaho and our crop consultant collaborators across the state are continuing the monitoring program for potato psyllids, zebra chip disease (ZC), and liberibacter (Lso), the bacterium associated with ZC. The monitoring program covers commercial potato fields throughout southern Idaho and is funded in part by the Idaho Potato Commission and generous in-kind contributions by our collaborators.
Following guidance from our ZC Advisory Committee, we are running a shortened monitoring season beginning at the end of June and continuing for 10 to 12 weeks, using 4 sticky traps per field at all sites. Complications related to COVID-19 have limited the number of sites being monitored by some of our cooperators, but we expect to still have a total of about 65 fields across the state.
The first set of traps in commercial fields was deployed last week, with quite a few more having been deployed this week. We began monitoring at the Kimberly R&E Center (KREC) during mid-June.
During the week of June 22, we captured a total of 4 potato psyllids among our three monitored fields at KREC. During the week of June 29, we captured 11 psyllids across the same fields as well as 7 psyllids across three commercial fields in Canyon county. Psyllid abundance appears to be fairly low as is typical of June, but we will obtain trap data from many more sites next week.
More information and resources on potato psyllids and zebra chip, including management and scouting recommendations, can be found at the link below.
http://www.uidaho.edu/cals/potatoes/news/psyllid-management
More information can be found here: http://www.uidaho.edu/cals/potatoes/news
--Click on the links under “Updated weekly reports” for details on trap captures.
--Click on the “Psyllid Management” link on the left panel for information on psyllid and zebra chip biology and management.
Iris yellow spot virus in onion
All Crops All Locations
Posted on: July 1, 2020 by Stuart Reitz
Iris yellow spot virus had been found this past week in a few plants in commercial onion fields in Malheur County, Canyon County, and Washington County. So far, no widespread outbreaks have occurred.
Maintaining good thrips management will help limit the spread and severity of the disease. Infective adult thrips spread the virus from plant to plant as well as within a plant. Infective immatures also can spread the virus within a plant.
In addition to thrips management, minimize stress on onion plants by making sure fields are maintained at an adequate but not excessive fertility level, and that the soil moisture is kept at about the 20 centibar level. This will help reduce the severity of virus symptoms.
TASCO Field Days
Sugarbeets All Locations
Posted on: July 1, 2020 by Jerry Neufeld
The following announcement is from The Amalgamated Sugar Company.
Due to the raising rate of Covid community transmission, we see ourselves forced to cancel The Amalgamated Sugar Company Field Days in Nampa (July 7th) and Jerome (July 9th).
We apologize for the short notice and ask for your understanding.
Virtual Tour July 7th: UI Snake River Weed Mgt Tour - Aberdeen Research and Extension Center
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Posted on: June 29, 2020 by Pamela Hutchinson
Can not make it to the on-site Tour June 30th?
You are in luck!
You are invited to a virtual tour of the UI Snake River Weed Mgt trials: Aberdeen Research and Extension Center via Zoom meeting.
When: Jul 7, 2020 01:00 to 4 PM Mountain Time (US and Canada)
Even if you saw the trials up close and personal June 30 you can also register for this virtual tour.
NOTE: Three Pesticide Recertification credits will be offered for virtual tour attendees.
Register in advance for this meeting:
https://uidaho.zoom.us/meeting/register/tJYpdumtrjgpEtE7UlRaMInXN--XVoQ50nrN
After registering, you will receive a confirmation email containing information about joining the meeting.
Pam
Pamela J.S. Hutchinson
Potato Cropping Systems Weed Scientist
Aberdeen R&amp;E Center
1693 S 2700 W
Aberdeen, ID 83210
Cell ph 208-681-1304
Office ph 397-4181 fax 397-4311
» https://uidaho.zoom.us/meeting/register/tJYpdumtrjgpEtE7UlRaMInXN--XVoQ50nrN
Additional resources for potato quality improvement are now available on-line
Potato All Locations
Posted on: June 29, 2020 by Nora Olsen and Mike Thornton
As part of the Idaho Potato Commission-funded quality project we have been working with one of the largest retailers of potatoes to monitor the incidence of defects seen at the consumer level in the 2017, 2018 and 2019 potato crops. The good news is that we have seen an improvement in the quality of potatoes delivered over the three years of the project. We believe that this improvement in quality is due in large part to the emphasis on reducing bruise damage being exhibited at both the grower and shipper levels.
One of the best ways to reduce bruise damage is to focus on training the people that operate every piece of potato handling equipment on their role in the effort to improve quality. To that end, we have developed several training resources on our website under the “Bruise Management” tab. In 2019 we focused on videos that show windrower and harvester operators the key factors in operating that equipment in a way that minimizes bruise. But we realize that bruising can take place any time potatoes are handled, so in 2020 we focused on the equipment that moves potatoes from the truck into storage, the piling operation, and the process of removing the potatoes from storage. The result is three new videos entitled Moving Potatoes from Truck to Piler, Best Practices for Piling Potatoes, and Unloading Potatoes Out of Storage. Each video is only 3 to 4 minutes long, but cover the basic operating principles and show several viewpoints so that equipment operators can see what the machinery should look like when operating properly.
Special thanks go to Jason Thomas (Minidoka County Extension Educator) for the narration, and Bill Schaefer for shooting the video and editing it all into the final product.
The initial videos are available in English. However, we anticipate that a Spanish version of the videos will be posted shortly. All these videos are available at the following website:
https://www.uidaho.edu/cals/potatoes/bruise-management/training-videos
Powdery Mildew in Sugarbeets - 2020
Sugarbeets All Locations
Powdery Mildew
Posted on: June 23, 2020 by Jerry Neufeld
Powdery mildew has been found by The Amalgamated Sugar Company LLC Crop Consultants in sugarbeet fields in the Nyssa, OR and Parma, ID area. This is quite a bit earlier than the past few years. There are several fungicides available for use to treat powdery mildew. Depending on the disease pressure and chemistry used, applications with different chemistries should be repeated every 14-21 days. Please be advised that strobilurins could show reduced efficacy to due fungicide resistance. Always tankmix with at least 5 lbs of sulfur for resistance management purposes. Contact your Crop Consultant from The Amalgamated Sugar Company LLC if you have any questions.
Click on the link below for the powdery mildew pages in the PNW Plant Disease Management Handbooks.
» https://pnwhandbooks.org/plantdisease/host-disease/sugar-beet-beta-vulgaris-powdery-mildew
2020 UI Snake River Pest Management Tour - Aberdeen
Announcements All Locations
Posted on: June 19, 2020 by Pamela Hutchinson
Hello!
We will definitely have our annual Snake River Pest Management Tour at the Aberdeen R&E Center Tuesday June 30th!
Time:
· Registration 8:30 to 9a
· Tour 9a to noon
Safety precautions:
· Forehead temperatures will be taken at registration..
· Face masks are required – we will provide if you don’t have one on tour day.
· Hand sanitizer will be available at registration and during the tour.
· Attendees must social distance except for within your family or within a group of members from your own company with whom you have been approved to be closer than 6ft.
· Attendees will drive their own vehicles to field tour stops rather than on trailers. The tour is entirely at the Aberdeen R&E Center.
· No lunch after the tour but bottled water will be provided throughout the morning.
Credits: Three Idaho pesticide applicator recertification credits will be offered.
FOR THOSE WHO CANNOT ATTEND IN PERSON:
We will have a virtual tour of some type – stay tuned for further details.
Featured will be several weed control trials in potatoes, including tank mixtures, planned vs. rescue postemergence applications, chemigation vs sprinkler incorporation as well as potato variety herbicide tolerance trials, and herbicide mechanism of action plots.
And…Updates about other pests and other crops from our Research and Extension project leaders.
Please forward this email to your colleagues.
NO RSVP needed unless you are unable to have a vehicle for the tour stops.
We hope to see you there!
Pam
Pamela J.S. Hutchinson
Potato Cropping Systems Weed Scientist
Aberdeen R&E Center
1693 S 2700 W
Aberdeen, ID 83210
Cell ph 208-681-1304
Office ph 397-4181 fax 397-4311
Cercospora leaf spot in Sugarbeets - 2020
Sugarbeets All Locations
Cercospora leaf spot
Posted on: June 15, 2020 by Jerry Neufeld
Amalgamated Sugar Company, LLC is reporting they have the first confirmed sighting of Cercospora leaf spot for 2020 in a sugarbeet field between Caldwell and Notus. A Senior Agriculturist with AMSCO found symptomatic leaves in an overhead irrigated field. We have reached critical temperatures but relative humidity is still low, however overhead irrigation can artificially increase relative humidity and therefore increase infection potential. Fields in close proximity to last year’s infected fields, or back to back sugarbeet fields are especially at risk. Please contact your local AMSCO agriculturist for fungicide recommendations based on last year’s fungicide resistance survey.
Volunteer potato control recommendations for 2020
Potato All Locations
volunteer potatoes
Posted on: June 10, 2020 by Jerry Neufeld
The pdf below contains "Volunteer potato control recommendations for 2020." This information is provided by Dr. Pamela J.S. Hutchinson, Potato Cropping Systems Weed Scientist, University of Idaho Aberdeen R&E Center.
» Volunteer_potato_control_recommendations_for_2020_HUTCHINSON_June_02_2016.pdf
Stripe rust (or Yellow Rust) in Wheat - Western Idaho
All Crops All Locations
Stripe rust on wheat
Posted on: June 5, 2020 by Juliet Marshall
Stripe rust has found its way to western Idaho, reported from at least two locations (with accompanying picture), one location was on UI Magic CL+. (Thanks Oliver Neher!) The growth stage of winter wheat in that area is past the window of fungicide application, and is currently in grain fill. Spring wheat is still vulnerable and susceptible varieties should be scouted for the appearance of stripe rust.
In the Magic Valley and into eastern Idaho, winter wheat is heading and susceptible varieties are still vulnerable to significant yield loss associated with stripe rust infection. Stripe rust reaction of last year’s varieties in the Extension Variety Trials is reported in the 2019 Small Grains Report available online at https://www.uidaho.edu/extension/cereals/scseidaho. (The data is included here as attachments.). Also keep an eye out for stripe rust on barley. No barley stripe rust has been reported so far this year.
Please note that while some wheat varieties were reported as resistant in 2019, race changes were reported in California by Dr. Mark Lundy (UC Davis pathologist) in this year’s crop; therefore scouting of all varieties is recommended this season. Please report observations so we can keep track of the in-season spread.
The weather forecast for this and especially next week is very conducive to stripe rust spread and infection. Fungicide application recommendations developed through NCERA-184 pathologists, coordinated by Dr. Erick De Wolfe Kansas State University, is also attached.
» https://www.uidaho.edu/extension/cereals/scseidaho
New edition of Potato Production Systems
Potato All Locations
Posted on: June 5, 2020 by Jerry Neufeld
Dr. Mike Thornton, Professor of Plant Sciences, University of Idaho Parma Research and Extension Center is reporting that a new edition of Potato Production Systems was published recently by Springer Publishing. The comprehensive book includes contributions by 39 authors, 22 of whom are current or emeritus U of I faculty. The book, originally published by UI Extension in 2003, functions as a textbook for CALS Potato Science course and as a reference for potato industry professionals. You can find more information about the book on the Springer website by clicking on the link below.
EPA Releases Temporary Guidance on Respiratory Protection for Agricultural Pesticide Handlers During COVID-19
All Crops All Locations
Posted on: June 3, 2020 by Christy Tanner
The temporary guidance outlines approaches to address the unavailability of required respiratory protection and respiratory fit testing that should first be exhausted before considering any alternative options. Options include:
• Use alternative NIOSH-approved respirators offering equivalent or greater respiratory protection than those required on the pesticide label;
• Hire commercial applicator services with enough respirators and respiratory protection capabilities;
• Opt to use agricultural pesticide products that do not require respirators; or
• Delay pesticide applications until another compliant option is available.
If the above options are exhausted, EPA’s guidance provides additional options with strict terms, conditions, and exhaustion requirements to minimize potential incremental risks to workers:
• Reuse and extended use of disposable N95 filter facepiece respirator;
• Use of “expired” respirators;
• Use of respirators certified in certain other countries or jurisdictions meeting protective conditions outlined; or
• Delay the annual respirator “fit test.”
This is a temporary policy. EPA will assess the continued need for and scope of this temporary guidance on a regular basis. To read the guidance in full and to learn more about EPA’s Worker Protection Standard, visit this webpage: https://www.epa.gov/enforcement/statement-regarding-respiratory-protection-shortages-and-reduced-availability-respirator
COVID-19 Guidance for Ag Employers and Workers
All Crops All Locations
Posted on: June 2, 2020 by Stuart Reitz
The CDC and US Department of Labor have released guidance to protect agricultural workers on farms and other work sites. Please take time to review the recommendations to maintain a safe work environment and reduce the spread of COVID-19 in your communities.
https://www.cdc.gov/coronavirus/2019-ncov/community/guidance-agricultural-workers.html
» https://www.cdc.gov/coronavirus/2019-ncov/community/guidance-agricultural-workers.html
Ag Talk Tuesday - June 2
All Crops All Locations
Posted on: June 1, 2020 by Juliet Marshall
Greetings!
This Tuesday (June 2) brings another Ag Talk Tuesday session of the season. These online interactive sessions occur every 1st and 3rd Tuesday of the growing season (May through August) from 11:00 AM to 1:00 PM MT and provide an opportunity for UofI and the ag industry to share and exchange information about current season crop issues. Featured topics are also presented.
After crop updates, the featured topics are "In-season nutrient management with soil and petiole sampling” with Linda Schott and
"Weed and chemical load on compost vs manure” with Mario E. de Haro-Martí.
You must Register in advance for this meeting:
https://uidaho.zoom.us/meeting/register/vpAkc-uvqTwpZF4DlEg_ZcN8xYE9ezZSkQ
After registering, you will receive a confirmation email containing information about joining the meeting.
If you have already registered, you will not need to register again.
Attached is a flyer for your use to help spread the word.
A schedule with featured topics is available here: https://webpages.uidaho.edu/extension-seed-potato/ATT.html Check back often as items are added regularly.
Sincerely,
Your Ag Talk Tuesday Organizers:
Kasia Duellman
Pamela J.S. Hutchinson
Juliet Marshall
» https://webpages.uidaho.edu/extension-seed-potato/ATT.html
Ag Talk Tuesdays - May 19 - Register in Advance to Attend
All Crops All Locations
Posted on: May 16, 2020 by Kasia Duellman, Juliet Marshall, Pam Hutchinson
Hello All:
Please join UI Extension Specialists, Extension Educators and ag professionals for Ag Talk Tuesdays. These sessions occur every first and third Tuesday, May through August. Listen to a featured presentation, hear crop pest and disease updates for the current season, engage with industry professionals, ask questions, provide your crop updates, or sit back and listen on your phone, tablet or laptop with Zoom.
Register in advance for this meeting (required):
https://uidaho.zoom.us/meeting/register/vpAkc-uvqTwpZF4DlEg_ZcN8xYE9ezZSkQ
Register once to be able to attend all 2020 sessions.
To learn more about Ag Talk Tuesdays and to view a schedule of featured presentations, please check the calendar here (check back often as new topics are added regularly): https://webpages.uidaho.edu/extension-seed-potato/ATT.html
After the sessions, read the Ag Talk Report newsletter - this newsletter provides a summary of Ag Talk Tuesday highlights, plus additional timely information that wasn't covered during the live session. The current issue and past issues can be found here:
https://webpages.uidaho.edu/extension-seed-potato/ATT.html
Please distribute this information far and wide.
Sincerely,
Kasia
--------------------------------------
KASIA M. DUELLMAN, Ph.D.
Assistant Professor and Extension Seed Potato Specialist
College of Agricultural and Life Sciences
Entomology, Plant Pathology and Nematology
kduellman@uidaho.edu
webpages.uidaho.edu/extension-seed-potato/
208-757-5476 | 701-793-9456 (Cell)
U of I Idaho Falls | 1776 Science Center Drive, Suite 205 | Idaho Falls ID 83402 | United States
Ag Talk Tuesday May 5 - Register in Advance
All Crops All Locations
Posted on: May 4, 2020 by Juliet Marshall, Kasia Duellman
To: Producers, fieldmen, agronomists, consultants and others in ag
From: Kasia Duellman, University of Idaho Extension Specialist
Re: 2020 UofI Ag Talk Tuesdays
Greetings!
You are invited to attend the 2020 sessions of Ag Talk Tuesday. Ag Talk Tuesdays for 2020 kick off next Tuesday May 5, from 11:00 AM to 1:00 PM. You can attend by Zoom on your computer or you can call in on your phone. More information on what Ag Talk Tuesdays are and an agenda for each session can be found here: https://webpages.uidaho.edu/extension-seed-potato/ATT.html
Check back often as featured topics are added. Registration is required.
Register in advance to attend: https://uidaho.zoom.us/meeting/register/vpAkc-uvqTwpZF4DlEg_ZcN8xYE9ezZSkQ
Once your registration is approved, you will receive instructions on how to join the meeting by Zoom or by your phone.
We hope you can fit these sessions in your busy schedule. The more participation we have, the more interesting and relevant these interactive sessions will be. Listen to Featured Topics, ask questions, provide insight from your own experiences as the season progresses and as issues arise, participate in discussion, or just listen in. A follow up newsletter, The Ag Talk Report, will be released after each session to give more info on topics discussed and those not broached.
Wishing you a productive season!
Sincerely,
Kasia
--------------------------------------
KASIA M. DUELLMAN, Ph.D.
Assistant Professor and Extension Seed Potato Specialist
College of Agricultural and Life Sciences
Entomology, Plant Pathology and Nematology
kduellman@uidaho.edu
webpages.uidaho.edu/extension-seed-potato/
208-757-5476 | 701-793-9456 (Cell)
U of I Idaho Falls | 1776 Science Center Drive, Suite 205 | Idaho Falls ID 83402 | United States
Sugarbeet Root Maggot - 2020
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sugarbeet root maggot
Posted on: April 27, 2020 by Jerry Neufeld
The growing degree day calculator (gdd) (hosted by the Integrated Plant Protection Center at Oregon State University; http://uspest.org/cgi-bin/ddmodel.us) for the sugarbeet root maggot fly shows that—depending on your location in the Treasure Valley—we have accumulated 282 gdd since March 1, 2020 and 177 gdd in the Magic Valley. Peak flight of root maggot flies should occur after 360 accumulated gdd when the maximum high temperature exceeds 80 degrees F. In the Treasure Valley this will be about May 3, in the Magic Valley this will be about May 16. The gdd model does an excellent job of predicting peak flight, but monitoring with orange sticky stake traps is the best way to get local information on fly numbers for a given field to determine if you have the threshold numbers of flies.
Root maggot flies will lay eggs near sugarbeet plants. After the larvae hatch they will begin feeding on the young sugarbeets. Look for these pests to appear in the western end of the Treasure Valley first. The optimal timing for applying granular insecticides against root maggots is within 10 days of peak flight. Granular insecticides must be watered in well to get good uptake by the sugarbeets. The link below from the 2020 PNW Insect Management handbook contains additional information about the sugarbeet root maggot control. I have also attached the links to “ Growing Degree Days (GDD)
Root Maggot Emergence Control” and “Economic Threshold for Sugarbeet Root Maggot Calculator.” These are calculators developed by The Amalgamated Sugar Company.
In addition, I have attached a link to the University of Idaho publication entitled “Sugarbeet Root Maggot; Identification, Biology and Management.” TASCO would like you to visit with your field consultant for treatment options.
» https://pnwhandbooks.org/insect/agronomic/sugar-beet/sugar-beet-sugar-beet-root-maggot
» http://www.srcoop.com/coopEconomicThresholdsCalculator.aspx
» http://www.srcoop.com/coopEconomicThresholdsCalculator.aspx
» htt