Invasive beetle that has wiped out millions of ash trees confirmed in Washington

By: Aspen Ford

Outlets: Washington State Standard

Published: August 19, 2026

Words: 455

Last Updated: 2 weeks, 5 days ago


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One of the most destructive invasive pests in the nation has arrived in southern Washington, posing a grave threat to ash trees.

State officials confirmed the presence of the emerald ash borer Wednesday after two people passing through Vancouver spotted the insect on their windshield in early August. They took photos, collected the specimen and turned it over to officials for identification.

“We anticipated it would only be a matter of …

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