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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.

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/

Parma Field Day 2024

All Crops    Treasure Valley, Treasure Valley - Idaho

Posted on: July 12, 2024 by Jemila Chellappa

PARMA RESEARCH AND EXTENSION FIELD DAY

2 Idaho and 3 Oregon pesticide credits available

Date and Time: Thursday, August 8th, 2024 @ 7:15 am – 11:30 am

To cover field research on crops including onions, beans, sugar beets, hops, potatoes, corn, and carrots. To include demonstrations involving varieties, plant disease management, nematology, insect pests, and more. Idaho and Oregon pesticide education credits are expected to be offered.

Venue: University of Idaho Parma Research and Extension Center, 

     29603 U of I Lane, Parma, ID 83660

 

Schedule: 

o   7.15 am: Registration, breakfast, posters, and displays 

o   8 am – 11.30 am: Field tours and presentations

 

All are welcome!

No need to pre-register.

 

For further information 

Contact: James Woodhall (jwoodhall@uidaho.edu)

Logos | Brand Resources | UI Extension

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

Cercospora Leaf Spot in Sugarbeet - 2024

Sugarbeets    Treasure Valley, Treasure Valley - Idaho, Magic Valley

Cercospora Leaf Spot

Posted on: July 6, 2024 by Oliver Neher

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 stilllow, 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

In case fungicide applications have not yet occurred, we are strongly encouraging everyone to start spraying against Cercospora leaf spot. There are several fungicides available [https://www.srcoop.com/articles/2024_Fungicide_Recommendations.pdf ] 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. The use of a protectant such as copper products, EBDCs, or hydrogen peroxide with every spray is strongly recommended.

Contact your crop consultant from the Amalgamated Sugar Company to discuss suitable fungicides for your areato 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/

Canyon County Emergency Management Storm Assessment

Announcements    Treasure Valley

Posted on: June 28, 2024 by Jemila Chellappa

For anyone in the County who knows anyone who might have been affected by the storm a few days ago please see the information below and share it with your friends and family who might have been involved:

 

Canyon County Office of Emergency Management is trying to gather information from people who were affected by the microburst that came through our area on Tuesday, June 25, 2024. If your property or crops received any type of damage from the storm, please fill out this form. 

Please send photos/attachments to the following email address with a description of the location and what was damaged. Email information to: emergencymanagement@canyoncounty.id.gov

Here is the link: https://forms.gle/BhxwVV4r27K8RLiq9

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