Insects and Spiders - native

unknown on Jul 18, 2025

Originally reported as Emerald Ash Borer (Agrilus planipennis)

Submitter has sample

Description of specimen

Not on the list. We think it’s ash.

Commentary

You are in an area known to be infested with emerald ash borer. Without a closeup photo of the insect or it's exit hole, it is nearly impossible to determine. Learn about the signs and symptoms of EAB here. www.OregonEAB.com You can also call your city arborist, private arborist, OSU extension agency for more info.

Wyatt Williams
July 28, 2025, 4:15 a.m.

Hello Sally, are you sure this is an ash tree? It's hard to tell from the pictures, but it looks like an elm to me. Can you share a close up picture of the leaves? You can learn to ID an ash tree here https://oregon-eab-geo.hub.arcgis.com/pages/identify

Matt Mills
Aug. 5, 2025, 6:58 a.m.

Hello Sally, thank you for this report. I was able to identify the location of this tree from the information you provided. This is an elm tree and not a host for EAB. You can learn more about ash, EAB, and track the spread at OregonEAB.com

Matt Mills
Aug. 28, 2025, 8:28 a.m.

Location

This is my daughters address, and she has a giant Ash tree that looks like it’s dying in her front yard, then there is a small grove (like 5-7) smaller ones behind her house in what appears to be a section owned by the city. Those look like they are dying, too. She said she’s seen beetles, but don’t know what kind they are and I can’t find any right now.

Expert Reviewer

Matt Mills
Oregon Department of Forestry

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