Insects and Spiders - native

unknown on May 8, 2025

Originally reported as Emerald Ash Borer (Agrilus planipennis)

Submitter does not have a specimen

Description of specimen

Many D shaped holes and splitting bark.
Sometime within this past year I believe that I may have seen one, but I wasn't able to get more than a glimpse before it scurried into a pile of mulch/needles and I wasn't able to find it again to get a better look. But it did appear to have the coloring and shape of the EAB and was small - maybe about 8mm or 9mm.

Commentary

Thanks for your report and for being on the lookout for EAB. Without pictures showing the insect signs on the bark or wood, it is really hard to diagnose. Is it possible to identify (a) if the tree in question is ash tree and (b) to look for characteristic "d-shaped" exit holes and tunneling under the bark of ash tree? Include some photos to your report for better diagnosis. For a review of how to identify ash trees as well as EAB, please visit www.OregonEAB.com Thank you!

Wyatt Williams
May 12, 2025, 2:29 a.m.

Location

moderately sloped and mostly shaded area where both bare/compacted soil and (specifically found in) mulched/gathered pine needles cover the ground. under conifer trees. a few snags (conifer and some kind of deciduous) stand and lay nearby.

Expert Reviewer

Wyatt Williams, Ph.D.
Wyatt Williams, Ph.D.

Invasive Species Specialist

Oregon Department of Forestry

Private Forests Division

2600 State St. Bldg. D

Salem, OR 97310-0340



Office: 503-945-7472

wyatt.williams@oregon.gov

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