The emerald ash borer, a tiny yet destructive invasive beetle known for wiping out ash trees on a large scale, has been confirmed at six new locations in northwest Oregon. First discovered in Forest ...

From British Columbia to California, volunteers are collecting ash seeds to help researchers at Oregon State University find genetic resistance to the invasive emerald ash borer. The emerald ash borer ...

The emerald ash borer, an invasive species of beetle, has been found in Portland. Local officials say it’s only a matter of time before the pests, which hollow out and kill ash trees, will arrive in ...

As Oregon gets hotter and drier due to climate change, tree-killing invasive pests that prefer warmer temperatures are thriving — endangering Sitka spruce along the coast, firs in the mountains and ...

Emerald ash borer, an invasive beetle that kills ash trees, was detected in Portland this summer, resulting in a quarantine zone expansion to try and curb the pest’s spread, according to the Oregon ...

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 ...

Oregon Field Guide is available to stream on pbs.org and the free PBS App, available on iPhone, Apple TV, Android TV, Android smartphones, Amazon Fire TV, Amazon Fire Tablet, Roku, Samsung Smart TV, ...

PORTLAND, Ore. (KOIN) – Portland is bracing for yet another threat to the city’s greenery. The emerald ash borer, a half-inch-long metallic-green beetle, is expected to arrive in Portland soon. More ...

PORTLAND, Ore. (KPTV) - A tiny green beetle from eastern Asia that can have a devasting impact on ash trees has been found in new sites in northwest Oregon, according to the Oregon Department of ...