Insects and Spiders - native

unknown on Oct 30, 2023

Originally reported as Emerald Ash Borer (Agrilus planipennis)

Submitter does not have a specimen

Description of specimen

I'm finding parts of the trees dead. There are bore markings in the dead wood.


Thank you for your report! Many ash trees have dead limbs from drought or ice damage. Several species of borers live in the dead wood. EAB makes S-shaped galleries and D-shaped exit holes about 1/8" wide. Here is the address of Oregon Department of Agriculture's IPPM Survey and treatment projects EAB page

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.

Please attach a photo here if you find damage that matches the description of EAB attack.

Tom Valente
Oct. 30, 2023, 6:20 a.m.