
Understanding Pest Contour Maps
Thursday May 01, 2025
Contour maps showing results from the WSU Extension insect monitoring network are available on the Potato Decision Aid System (DAS). These maps use color to help you visualize where and how many insec...

Psyllid Yellows and Scouting for Nymphs
Tuesday Jul 30, 2024
PSYLLID YELLOWS is a disorder that can occur when potato psyllid nymphs feed on potato plants. The nymphs inject a toxin into the plant when they feed. This results in a range of growth disorders that...

Potato Emergence Problems
Friday May 17, 2024
Check out this article by Andy Robinson, North Dakota State University/University of Minnesota; Eugenia Banks, Ontario Potato Board; and Steven Johnson, University of Maine Cooperative Extension. htt...

Colorado Potato Beetles in the News
Friday May 27, 2022
Colorado potato beetles (CPB) have been mentioned a lot in recent popular press articles. Most of the articles explain CPB's amazing ability to develop resistance to insecticides, and many present way...

Potato Pink Eye is not Pink Rot
Tuesday Nov 02, 2021
Potato pink eye is a disorder that causes raised pink areas on immature tubers, usually around the eyes. As the skin sets, the pink areas eventually dry and develop into brown corky patches. The sympt...