Emerald Ash Borer in Oregon

Emerald ash borer (Agrilus planipennis) — commonly called EAB — is a destructive, invasive beetle that infests and kills ash trees (Fraxinus species). EAB has spread across North America since it was first detected in Michigan in 2002, killing hundreds of millions of ash trees. EAB was confirmed in Oregon in 2022, the first known case on the West Coast. Once EAB arrives in an area, it cannot be eradicated —which means it doesn’t go away. Even though EAB will kill many ash trees in Oregon, there are steps we can take to slow its spread and limit its impacts.

The Oregon EAB Map provides the latest information on survey data and management recommendations for EAB in Oregon, and indicates areas at risk for EAB spread and ash tree mortality.

This map is intended for use by homeowners, landowners, municipalities, government agencies, conservation groups, and the general public. It displays the confirmed locations of EAB in the state of Oregon and the state quarantine boundary, as well as the records of thousands of individual ash tree surveys for the presence of EAB and EAB trap survey records.