College of Agricultural, Human, and Natural Resource Sciences

Verify the disease or pest before you act


alfalfa-plant-bugThe Washington State University Plant Pest Diagnostic Clinic, and the Puyallup Plant and Insect Diagnostic Laboratory, provide plant problem diagnosis for the state of Washington and surrounding areas.

Accurate diagnosis of plant diseases, disorders, and pests is the first step in implementing a successful integrated pest management (IPM) program.

The Plant Pest Diagnostic Clinic accepts samples from commercial growers, homeowners, public and private landowners, nursery and greenhouse operators, foresters, extension specialists, consultants, agriculture and horticulture-based industries, and government programs.


Full Service Plant Problem Diagnosis ($40).

This option is for when a microscopic examination alone … » More …

How many varieties of wheat has WSU developed?



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