Search Results
Your search for "All Alerts" in All Alerts
yielded 2135 results.
Swipe Left or Right to navigate Alerts
2021 Spider Mites
General Landscape and Garden Treasure Valley
Spider Mites (Tetranychidea)
Posted on: September 1, 2021 by Nic Usabel
Idaho Master Gardeners observed a spider mite infestation on zucchini during a recent integrated pest management walk. Spider mites are small (1/60 inch) and cause leaves to appear dirty due to their abundant webbing and adhering of dust. Symptoms include stippling on upper surface of leaves, bronzing and scorching of leaves, and death of foliage when damage is severe.
If you suspect a mite infestation, shake infested leaves over a white sheet of paper. If the small dots that fall to the paper move around, you likely have spider mites. For additional identification or confirmation, reach out to your local Extension office. Most spider mite activity peaks during dry conditions.
Management:
- Spider mites have a number or predatory mites and insects that can provide a high level of control. Avoid insecticides that are nonselective to help preserve predatory insects and mites. Examples include carbaryl, malathion, pyrethroid.
- Periodic hosing of plants with a forceful jet of water can physically remove spider mites and reduce dry dusty conditions favored by spider mites.
- If using a chemical control, select miticides that are specifically developed for spider mite control.
References:
- Pumpkin & Squash Spider Mite, PNW Handbook
- Spider Mites, Colorado State University
- Vegetable Crop Pest: Spider Mite, PNW Handbook
2021 Deep Water Trees & Shrubs
General Landscape and Garden Treasure Valley
Posted on: August 31, 2021 by Nic Usabel
Many irrigation districts across the Treasure Valley have indicated that water delivery will end early this season. If your irrigation season will end soon consider deep watering your trees and shrubs before irrigation delivery has stopped.
For established trees irrigate trees starting halfway between the trunk and the dripline and extending well beyond the dripline. See photo linked below for a visual. For large trees this could encompass the entire lawn. For newly planted trees irrigation is best concentrated near the trunk and slightly beyond the root ball to encourage roots to move out into the surrounding soil. Shrubs can be watered in a similar fashion to ensure the roots of the shrub have received water. Evergreen trees and shrubs will continue to lose moisture from their needles or leaves all winter long.
Consider using mulches on the soil surface to conserve moisture. In addition, it will help with weed control and uniform soil temperature. Keep mulch 2 inches away from tree and shrub stems to discourage root and crown disease.
References:
- Tree for southwestern Idaho landscapes: Selection & Irrigation, University of Idaho
- Watering Home Lawn and Landscapes, University of Idaho
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 Curly Top Virus in Tomatoes
General Landscape and Garden Treasure Valley
Beet Curly Top Virus
Posted on: August 26, 2021 by Nic Usabel
The Canyon County Master Gardener Integrated Pest Management Team recently detected a tomato plant with symptoms of curly top virus. The virus is carried by the beet leafhopper, Circulifer tenellus. The leafhopper takes up the virus when feeding and keeps it in its body the rest of its life. The most frequently cited hosts include Kochia, Lambsquarter, Halogeton, Russian thistle, Greasewood, and Atripex.
The symptoms on tomatoes include the rolling up and twisting sharply of the leaflets to expose the undersurface. Foliage is stiff and leathery, and the entire plant is a peculiar dull yellow. Leaflet veins are purple, and the plant is often stunted. Many roots and rootlets die, as do severely affected plants. Young plants infected with the disease are usually killed.
The sporadic nature of Beet Curly Top Virus makes it very difficult to implement practical management strategies. One of the most promising strategies is to use resistance cultivars of tomatoes. Observations have shown that plants grown in shade do not contract the virus, so shading could be a possible management strategy. Excluding the beet leaf hopper with row cover buried in the ground and placed over the tomatoes until plants can no longer be contained inside can reduce early infection. Pull and dispose of infected plant material.
References:
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 Spotted Wing Drosophila on Blackberries
General Landscape and Garden Treasure Valley
Spotted Wing Drosophila (Drosophila suzukii)
Posted on: August 16, 2021 by Nic Usabel
A Canyon County Master Gardener has detected Spotted Wing Drosophila (SWD) in blackberries. SWD targets a wide variety of fruits including raspberries, blackberries, and strawberries. SWD can damage ripe-to-overripe fruit by depositing eggs directly beneath the surface. Review the Utah State University publication linked in the reference material for monitoring methods.
To recognize SWD damage, look very closely for scarring or spotting on the fruit surface; liquid exuding (when squeezed) out of scar/hole where eggs were laid; softening, collapsing and/or bruising of fruit at damage site; small white larvae and pupae that can be seen with naked eye if fruit is opened; and, under a microscope, two hair-like filaments sticking out of fruit where they are connected to a white egg within the fruit can sometimes be seen. Reach out to your local Extension office if you need help with identification or review the linked reference materials for additional details.
Non-Chemical Control
- Pick ripe fruits frequently to minimize potential SWD host material.
- Fine-mesh floating row covers can protect low growing fruits.
- Use traps around fruit production areas to capture and kill adult flies.
- Damaged or fallen fruit should be removed, buried, solarized, crushed or stored in sealed container to exclude flies.
Chemical Control
- Should be coupled with monitoring efforts. Rotate chemical families to avoid resistance and follow the label for each crop.
- See specific fruit for recommended chemicals. Review links below.
- Pesticide families that help control SWD include: spinosyns, pyrethroids, carbamates, and organophosphates. Follow the label to determine appropriate rates, risks, and fruits in which it can be applied.
- Do not apply when bees and other pollinators are present, such as when plants are flowering or when pollinators are active.
Reference Materials:
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/
2021 Blossom-End Rot
General Landscape and Garden Treasure Valley
Blossom-End Rot
Posted on: August 12, 2021 by Nic Usabel
Blossom-end rot is showing up on tomato and pepper plants. Eggplant, squash, and watermelon can also be affected.
Blossom-end rot is a physiological disorder due to a shortage of calcium in young fruit. Blossom-end rot often occurs when soil moisture fluctuates as water stress interferes with calcium uptake in the plant. Most Treasure Valley garden soils have enough calcium and additions are not recommended. Some varieties are more prone to blossom-end rot than others.
Cultural Control Practices:
- Use infrequent deep irrigation to keep the soil uniformly moist and avoid water stress or fluctuating soil moisture.
- Organic mulch can be used to prevent wide fluctuations in soil moisture.
- Avoid over fertilizing.
- Avoid hoeing or cultivating near the roots.
Reference Materials:
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.
2021 Tobacco Budworm, Petunia & Geranium
General Landscape and Garden Treasure Valley
Tobacco Budworm (Chloridea virescens)
Posted on: August 11, 2021 by Nic Usabel
Tobacco budworm damage has been observed by Canyon County Master Gardeners during and Integrated Pest Management walk in Caldwell. Now is the time to monitor your petunia and geranium plants which are commonly affected by this pest.
Tobacco budworm feeds on buds and petals. The adult is a moth which is light green with gray or brown overtones and a few wavy, creamy colored bands. The moth is active in the early evening and lays eggs on buds or leaves. The caterpillar varies in overall color but is common in dark forms, green, or light brown. The caterpillar becomes full grown in about a month at which point it will burrow into the soil and transform to a pupal stage. The adult will emerge and begin the cycle again. Overwintering pupae are generally killed if exposed to temperatures below 20°F. Maintaining potted plants in protected areas (garage) can allow budworm pupae to survive in the soil.
Control
• Monitor and detect early. Check buds and flowers for small holes.
• A small planting could allow for handpicking as a control. Most caterpillars hide around the base of the plant in the day and climb onto plants at dusk or early evening.
• Application of microbial insecticide Bt Bacillus thuringiensis should be made late in the day and applied to provide good coverage.
• Additional insecticide options are available and should be applied when pollinators are not active or present on the plant.
Reference Materials:
• https://extension.colostate.edu/topic-areas/insects/tobacco-geranium-budworm-5-581/
• https://blogs.k-state.edu/kansasbugs/2016/07/15/geraniums-and-petunias-beware-of-the-tobacco-budworm/
• https://ag.umass.edu/greenhouse-floriculture/photos/budworm-petunia-calibrachoa-geranium-0
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.
2021 Apple Codling Moth, Third Generation
General Landscape and Garden Treasure Valley
Codling Moth Cydia pomonella
Posted on: August 5, 2021 by Nic Usabel
The third generation of codling moth egg hatch is forecasted to begin August 10. Current degree day models indicate 2030 DD as of August 4. Third generation egg hatch begins at 2160-2200 DD.
Continue to keep fruit protected through September 15. Protection of fruit can stop after this time even if fruit has not been harvested. By mid-September there is not enough day length to signal eggs on the fruit to hatch.
Follow label directions for harvest and post-harvest requirements.
Reference Materials:
- PNW Management Handbook: Codling Moth
- Codling Moth, Utah State University
- Codling Moth, Colorado State University
Corn Earworm Counts - 8/4/21
Corn Treasure Valley
corn earworm
Posted on: August 4, 2021 by Jerry Neufeld
Below are the corn earworm moth counts from this morning, August 4. The counts are increasing in certain areas, as you can see below. If you have corn with fresh silk you may want to increase your scouting in areas where the counts are increasing.
Location Date
23-Jul 28-Jul 4-Aug
South of Nampa 2 2 9
Melba 1 0 0
Homedale 4 12 21
Wilder 3 3 29
Roswell 0 4 22
Middleton 2 0 3
Total 12 21 84
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.
Corn Earworm Counts - 7/28/21
Corn Treasure Valley
corn earworm
Posted on: July 29, 2021 by Jerry Neufeld
Below are the corn earworm
moth counts from this morning, July 28. At
this time counts are still low, except they are rising a little bit in the
Homedale area. I will check the traps
again in a few days to see if the numbers are increasing.
Location | Date | |
23-Jul | 28-Jul | |
South | 2 | 2 |
Melba | 1 | 0 |
Homedale | 4 | 12 |
Wilder | 3 | 3 |
Roswell | 0 | 4 |
Middleton | 2 | 0 |
Total | 12 | 21 |
Corn Earworm Counts - 7/23/21
Corn Treasure Valley
corn earworm
Posted on: July 23, 2021 by Jerry Neufeld
Below are the corn earworm moth counts from this morning, July 23. At this time there doesn’t appear to be a great deal of corn earworm moths around the valley. I will check the traps again in a few days to see if the numbers are increasing.
Location July 23
South on Nampa 2
Melba 1
Homedale 4
Wilder 3
Roswell 0
Middleton 2
Total 12
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/
Cereal Field Days! Idaho Falls TODAY, Aberdeen Wednesday, Soda Springs Thursday!
Small Grains Eastern Idaho
Cereals Field Days
Posted on: July 20, 2021 by Juliet Marshall
Idaho Falls Tuesday, July 20
4 PM at 2550 South, 45th West (parking at Thiel's residence, not on side of road), followed by Grain Growers dinner @ Sealander Park
Aberdeen / LCS Field Day Wednesday, July 21
8:20 AM registration, program starts at 8:30 AM Aberdeen R&E
Center. 1693 S 2700 W, Aberdeen, ID. Lunch provided.
Soda Springs Thursday, July 22
4 PM Head north on Government Dam Road, take a right on China Hat Road, 1/4 mile on north side of road
» https://www.uidaho.edu/extension/cereals/scseidaho
» UI_Extension_2021_Cereals_Field_Days_For_Southern_Eastern_ID2.pdf
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.
