Thank you for your report! Emerald ash borer makes D-shaped holes about 1/8" wide. Here is the address of Oregon Department of Forestry's EAB website

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

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

Tom Valente
Sept. 2, 2025, 1:20 a.m.