The emerald ash borer has been detected in Portland, Oregon, and the Oregon Department of Forestry is urging residents to ...

Richard Snieszko stands under an Oregon ash tree in Dorena. Yellow-brown seed pods, or samaras, hang from the tree around him ...

The Oregon Department of Forestry discovered an emerald ash borer in tree in the parking lot at the David Douglas Aquatics Center in the Hazelwood neighborhood deep in Northeast Portland. Peter Van ...

It’s official. The emerald ash borer, a half-inch-long metallic-green beetle, has arrived in Portland. Portland Parks and ...

Over the summer, a private arborist noticed an ailing green ash tree at the David Douglas Aquatics Center near Hazelwood-Mill Park. City and state officials caught an adult beetle at the tree, and the ...

The confirmation of the emerald ash borer in Aurora is prompting city officials to remove or treat infected trees and ...

The discovery puts all of Multnomah County into a quarantine zone. It’s the fifth county to be quarantined in Oregon.

An invasive, tree-killing pest has made its way to Portland, spelling trouble for the many native ash trees that cool ...

The emerald ash borer (EAB), a destructive beetle from eastern Asia, is spreading rapidly in Oregon, threatening ash trees ...

The emerald ash borer, a destructive beetle from eastern Asia, is threatening ash trees in northwest Oregon. According to ...

Sioux Falls city leaders announced a new program on Wednesday to fight back against the Emerald Ash Borer, an invasive beetle that has been killing ash trees across the city.

A tiny green beetle that can have a devasting impact on ash trees has been found in new sites in northwest Oregon, according ...