Disease Resources
New Publication: Have You Seen Me? Identifying Soilborne Wheat Mosaic Virus (SBWMV)
Soilborne wheat mosaic virus was first documented in Whitman County, Washington, in 2026 and can reduce wheat yields while persisting in soils for many years. Learn how to limit its spread and manage affected fields in this new publication.
Disease Alert: Soilborne Wheat Mosaic Virus has appeared in multiple locations in Whitman County, July 2026, Wheat Life
Timely Topics
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Pesticide Labels Are Changing
The Environmental Protection Agency (EPA) regulates pesticides because their use can affect animals and plants (or their habitat). Farmers and applicators should expect to see some new application requirements on their pesticide labels to comply with the EPA Endangered Species Act.
- What You Need to Know About Pesticides and the Endangered Species Act
- New rules for herbicide applications are coming, are you prepared?
- Pesticides and the Endangered Species Act: What You Need To Know Q&A (pdf)
- New Compliance Requirements Coming to Pesticide Labels
- Making Sense of the New EPA Mitigation Requirements for Pesticide Applicators
Archived Disease Updates and Presentations
- Identification and Management of Wheat Diseases: December 5, 2024 (pdf)
- Diagnosing and Managing Diseases of Wheat: WSU Wheat Academy, December 13, 2023 (pdf)
- Identification & Management of Wheat Diseases: WSCIA Annual Meeting, November 13, 2023 (pdf)
Abstracts:
There are at least a dozen different diseases that affect wheat in the PNW. The first step to managing any disease and implementing a successful integrated pest management (IPM) program is the correct identification of the problem. Tools used to manage diseases in wheat includes chemical strategies, cultural controls, and resistant varieties. This presentation describes several common diseases of wheat in the PNW, some tips on how to correctly diagnose and identify them, along with strategies for managing them. Practical management strategies including cultural and chemical tools, as well as disease resistance of regionally important diseases will be discussed.
Plant Pest Diagnostic Clinic
Washington State University operates a Plant Pest Diagnostic Clinic in Puyallup. The Pullman clinic closed in 2025. Services of the Puyallup clinic are available to clients statewide. For more information, visit the Diagnostic Clinic page.
Research Papers
Find a list of reports on small grain disease control including variety trials, foliar and seed treatment trials.