Thank you for your report! Ash trees may show damaged tops or branches for a number of reasons. 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

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, 6:23 a.m.