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2025 Idaho Association of Plant Protection - Nov. 5-6
All Crops All Locations
Posted on: October 9, 2025 by Jeff Miller
The agenda for the 2025 Idaho Association of Plant Protection is attached. The cost to attend is $30 for standard registration and $20 for students. The fee is the same whether you attend one or both days. Payment can be made at the door and credit cards are accepted.
Attendees can earn 2 ISDA credits and 4 CCA Pest Management credits on Wednesday and 3 ISDA credits and 4 CCA Pest Management credits on Thursday.
» https://millerresearch.com/event/2025-idaho-association-of-plant-protection/
Pesticide Recertification Seminars
All Crops Treasure Valley, Treasure Valley - Idaho, Treasure Valley Oregon
Posted on: October 6, 2025 by Jemila Chellappa
Upcoming Treasure Valley Cropping Systems Seminars: Pests and Pesticides
When: Monday, October 20 & Thursday, October 23, 2025
Where: 1904 E Chicago Street, Caldwell Research and Extension Centre, University of Idaho Extension, Caldwell, Idaho
Time: 10:00 AM – 12:00 PM both days
The Treasure Valley Cropping Systems Pests and Pesticide Seminars bring together Extension specialists and regulatory experts to provide the latest updates on insect pests and pesticide regulations for Idaho growers, applicators, and agricultural professionals. Each day features two focused, one-hour sessions followed by Q&A, offering practical, research-based information to strengthen IPM practices, improve decision-making, and ensure compliance.
Cost is free/ Registration required https://forms.office.com/r/B6wWQ6Q0x8?origin=lprLink
Pesticide Credits: 4 (2 for each day)
Monday, October 20, 2025 – Insect Pests of Treasure Valley Crops
- 10:00–11:00 AM – Insect Pests and Their Management in Treasure Valley Crops
Speaker: Dr. Armando Falcon-Brindis, University of Idaho Extension
→ Focus on key insect pests, thresholds, and integrated management strategies. - 11:00 AM–12:00 PM – Classical and Emerging Horticulture Insects & Pathogens in Idaho
Speaker: Bradley Stokes, University of Idaho Extension
→ Highlights on invasive and established pests, safe pesticide use, and IPM in home and commercial horticulture.
Thursday, October 23, 2025 – Pesticides & Regulations
- 10:00–11:00 AM – Understanding Pesticide Chemistry: From Mode of Action to Resistance Management
Speaker: Dr. Marcelo Dimase, University of Idaho Extension
→ Learn how pesticide chemistry connects with field management and resistance prevention. - 11:00 AM–12:00 PM – Navigating Pesticide Regulations and Compliance in Idaho
Speaker: Blaine Sterling, Idaho State Department of Agriculture (ISDA)
→ Review Idaho licensing, record-keeping, label interpretation, and compliance requirements.
Why Attend
- Strengthen your IPM knowledge
- Stay compliant with Idaho pesticide laws
- Connect with Extension and ISDA experts
For more information or registration details, contact:
Jemila Chellappa, Ph.D.
Assistant Professor & Area Extension Educator – Cropping Systems
University of Idaho Extension, Southern Districts
Final potato psyllid monitoring update of 2025 season
Potato All Locations
potato psyllid
Posted on: September 19, 2025 by Tasha Stanzak
This is the final report of the 2025 potato psyllid / Lso monitoring season.
Among the 11 psyllids captured last week, two tested positive for Lso, the bacterium associated with zebra chip disease (ZC).
Overall captures have been remarkably similar for the last three years. About 10% of all psyllids tested positive for Lso this year compared to about 4% last year and 6% the year before. The risk of ZC may have been slightly elevated this year by the prevalence of Los, but mitigated somewhat by relatively low psyllid captures. It is worth noting that nearly all of the Lso-positive psyllids were captured in the Magic Valley, with a few in the Treasure Valley, and none in the Upper Snake region.
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.
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 of potato psyllids and ZC 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 2025 and an archive of this year’s weekly updates as the season progresses: https://idahopestmonitoring.org/
