Insects and Spiders - native

unknown on Sep 9, 2025

Originally reported as Ash Bark Beetles (Hylesinus spp.)

Submitter does not have a specimen

Description of specimen

The bark is coming off of the tree in front of our house in the same manner that the Emerald Ash Borer seems to make.

Commentary

Thank you for your report! Can you please attach a photo of the damage? Emerald ash borer makes D-shaped holes about 1/8" wide. S-shaped galleries may be visible if the bark is splitting. Here is the address of Oregon Department of Forestry's EAB website

https://oregon-eab-geo.hub.arcgis.com/pages/identify

At the EAB website you can find the EAB Response Plan for Oregon, photos of Emerald Ash Borer Look-Alikes, and more information about how to recognize EAB attack, so that you can monitor your trees.

Tom Valente
Sept. 10, 2025, 6:29 a.m.

Location

In front of our house. I believe the tree has this bug.

Expert Reviewer

Tom Valente
Oregon Department of Agriculture

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