Skip to main content Skip to navigation

Coronavirus COVID-19

COVID-19 Advisory: WSU Extension is working to keep our communities safe. All Extension programming is being provided virtually, postponed, or canceled. Effective March 16, 2020, WSU Extension county offices and WSU Research & Extension Centers will be closed to the public. We are available via email, phone, and webconference.

Wireworm Research

Program Contact: Aaron Esser, Agronomist Lincoln/Adams Area
509-659-3210 •
Wireworms in TrapsWireworm Logo

Wireworm Scouting Fact Sheet FS059E

Wireworms can damage cereal grain crops, resulting in increased weed pressure and reduced stands, yields, and profits.

Wireworms are the immature larval stage of click beetles, and these beetles can spend several years in this larval stage feeding on germinating seeds and young seedlings, resulting in thin crop stands and lower yields. Crop damage is not detected until after planting when it is too late to make preventive pest management decisions. This situation makes wireworm scouting prior to planting essential.

Wireworms on Wheat RootsMore Resources
Wireworm Resources from