WSU Potato Alerts

Friday Apr 07, 2023

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

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...

Managing Potato Psyllids with Insecticides

Sunday Jun 16, 2024

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

Sunday Jun 09, 2024

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 ...

Herbicide Carryover in Potato Seed

Tuesday May 21, 2024

Some herbicides can accumulate in daughter tubers if they drift onto or are accidentally applied to potato foliage. This can result in problems the following season when the tubers are used as seed. H...