unknown on Jun 10, 2025

Originally reported as Emerald Ash Borer (Agrilus planipennis)

Submitter does not have a specimen

Description of specimen

The ash tree was identified by other City staff (Brian Smith) and shared with myself. The ash tree is showing signs of stress and some potential EAB signs/symptoms including canopy decline, woodpecker flecking, bark splits, and epicormic shoots. Some holes can be seen on the tree, with a few potentially appearing to be D-shaped (see photo attached). However, no sign of s-shaped galleries along any bark splits. Spoke on the phone with Kat Bethea on 6/12 and mentioned it might be worth taking a look out next time she's out surveying.

Commentary

Thank you for the the report Meridith. We checked on this tree and found no evidence of EAB in this tree or nearby trees. Although exit holes were overserved, they were the wrong size and shape and on dead wood. EAB does not infest dead material, these were caused by another insect. Nearby ash trees looked typical for Oregon ash.

Matt Mills
June 13, 2025, 7:52 a.m.