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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.

Pest Alerts

(425) 338-2400

Updated Aug. 3, 2020

Some WSU Extension web sites provide links to external sites for the convenience of users. These external sites are not managed by the WSU Extension. Furthermore, WSU Extension does not review, control or take responsibility for the content of these sites, nor do these sites implicitly or explicitly represent official positions and policies of WSU Extension.


Current Pest Alerts

Asian Giant Hornets (website)

Gypsy Moth (website)


Pest Alert Archives

Bed Bugs (WSU pub)

Brown Marmorated Stink Bugs (WSU pub)

European Chafer (WSU pub)

Red Lily Leaf  Beetle (WSU pub)

Spotted Winged Drosophila (WSU pub)

Viburnum Leaf Beetle (WSU pub)

Yellow Jackets & Paper Wasps (WSU pub)


Pest Alert Resources

Invasive Insect Detection in Washington State (booklet)

National Agriculture Pest Information System (website)

First Detector Training (website) 

Washington State University