Add Yahoo as a preferred source to see more of our stories on Google. Drought and insects have killed an unprecedented number of Oregon's Douglas fir trees during the last decade, costing billions in ...

In southern Oregon, they call it “fir-mageddon.” That’s where we first began to notice the rapid decline of the Pacific Northwest’s largest and most prolific tree. The Douglas fir is not only the ...

Douglas-fir trees will likely experience more stress from drier air as the climate changes than they will from less rain, computer modeling by Oregon State University scientists shows. The research is ...

Increases in mortality among Douglas-fir in the Klamath Mountains are the result of multiple factors that have the iconic tree in a 'decline spiral' in parts of the region. Increases in mortality ...

Adolfo Moretti is proud of the work his small staff has accomplished this year, trying to prevent a looming ecological disaster in Argentine Patagonia. “Kilometres and kilometers without pines,” ...

Armstrong Williams takes on the news of the week and asks the questions you want answered. Don’t miss our weekly town hall! by KOMO News Staff SEATTLE — Crews began cutting down a large Douglas fir ...

With so many varieties sold as Christmas trees, knowing what differentiates a Douglas fir from a Norway spruce is key to shopping for a real tree you’ll love. You’re likely to see more than one ...

Increases in mortality among Douglas-fir in the Klamath Mountains are the result of multiple factors that have the iconic tree in a "decline spiral" in parts of the region, a new study by the Oregon ...

CORVALLIS, Ore. (KTVZ) – Increases in mortality among Douglas firs in the Klamath Mountains are the result of multiple factors that have the iconic tree in a “decline spiral” in parts of the region, a ...