Emerald Ash Borer Confirmed In Washington State By Officials

Posted by Washington State Department of Agriculture on 19th Oct 2026

Destructive pest likely to wipe out majority of ash tree population

OLYMPIA – The Washington State Department of Agriculture (WSDA) and the United States Department of Agriculture Animal and Plant Health Inspection Service (USDA APHIS) confirmed a report of emerald ash borer near Vancouver.

"There has never been a successful effort to eradicate EAB. Land managers and homeowners should immediately cease planting new ash trees."