PORTLAND, Ore. (KOIN) – When the emerald ash borer was first found in Forest Grove in June 2022, the Oregon Department of Forestry and the Oregon Department of Agriculture took the discovery very ...

James E. Zablotny/USDA APHIS This week, crews removed dozens of infested ash trees in Forest Grove as part of a state plan to slow the spread of the destructive pest. This month, state agencies ...

In the year since the emerald ash borer was detected in Oregon, questions have been pouring in about what to do if an ash tree becomes infested and is killed by the invasive beetle. Currently, the ...

One of the most destructive invasive insects in the United States has been detected in three more Oregon counties this summer, which could be bad news for the state’s ash trees. Federal and state ...

Kris Dullmer of Ash Tree Solutions, right, injects an insecticide into an ash tree named Big Jim in the Catamount Community Forest to combat the emerald ash borer in Williston on Tuesday, June 25.

Two new pests in the Willamette Valley could decimate trees and worsen the ‘urban heat island’ effect that makes some neighborhoods hotter than others For years, Portland area politicians have ...

PORTLAND, Ore. (KOIN) – The dreaded emerald ash borer has made its way into Portland, and it poses a threat to every ash tree in the city. The invasive beetle from East Asia has already had a ...

DENVER (KDVR) — After 10 years of preparing for and working to prevent the spread of emerald ash borer in the Denver metro, the city and county of Denver announced Thursday that the pest has been ...

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