WSU Potato Alerts

Monday Apr 07, 2025

The WSU Potato Alerts e-newsletter covers timely topics important for potato production in the irrigated Columbia Basin. The alerts are issued weekly during the potato-growing season, with additional ...

Potato Pink Eye is not Pink Rot

Friday Aug 01, 2025

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...

Psyllid Yellows and Scouting for Nymphs

Wednesday Jul 30, 2025

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...

Managing Potato Psyllids with Insecticides

Monday Jun 16, 2025

Potato psyllids are important pests because they can spread the bacterium that causes zebra chip disease. They cannot be stopped from migrating into potato fields. However, they can be controlled once...

Potato Virus Y

Monday Jun 09, 2025

POTATO VIRUS Y (PVY) is the reason for most potato seed lot downgrades by seed certification agencies. This disease has become increasingly difficult for seed growers to deal with due (mostly) to the ...