Insects and Spiders - native

unknown on May 20, 2025

Originally reported as Emerald Ash Borer (Agrilus planipennis)

Submitter does not have a specimen
EDRR Status: Local expert notified

Description of specimen

Many native white ash with dead tops growing along the I5 in Lane county.

Commentary

Thank you for your report! EAB is not known from near that area. Ash trees may show dead tops or limbs for a number of reasons aside from EAB. Look for D-shaped exit holes, bark splits, and S-shaped galleries under the bark. Here is the address of the ODF EAB website with current information:
https://oregon-eab-geo.hub.arcgis.com/pages/identify

Thanks for being on the lookout!

Tom Valente
May 22, 2025, 7:54 a.m.

Thanks for your report. Agree with Tom's assessment above. ODF will get someone on the ground to follow up with a visual survey. Thanks again for your report.

Wyatt Williams
May 23, 2025, 3:47 a.m.

ODF staff visited this area on June 20. There were several areas with declining ash trees (which is not uncommon and is often due to multiple factors other than EAB). Access was not readily available to these areas on private property. ODF will be monitoring this area. IF any landowners in this area have symptomatic ash trees, we would be happy to do an inspection for EAB.

Wyatt Williams
June 24, 2025, 9:52 a.m.

Location

I am not 100% as to the exact location relative to the map. I have been watching the decline of white ash growing in the riparian area along I5 for a few years now. This year they basically all have dead tops. I fear it is EAB but I have not inspected the trees for exit holes. It's a patch of ash on the N side of I5 just a few miles north of the Saginaw exit. All white dead tops it's impossible to miss. I don't know who owns the property but please get someone out there to inspect. Thank you.

Expert Reviewer

Tom Valente
Oregon Department of Agriculture

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