New research led by a University of Oregon ecologist suggests that fire was historically more frequent in the Douglas fir ...

Some North Seattle residents prevented two Douglas fir trees from being cut down but their fight is likely just beginning. Neighbors in Seattle’s Maple Leaf neighborhood found out Friday that two ...

Drought and insects have killed an unprecedented number of Oregon’s Douglas fir trees during the last decade, costing billions in timber value, damaging infrastructure and ramping up wildfire danger.

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 ...

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 ...

Another wave of heavy rain smacks western Washington this week, coupled with strong winds adding concern for potential power outages. by KOMO News Staff SEATTLE — Crews began cutting down a large ...

Some of the most spectacular forests of Douglas fir in the West are found on the west slope of the Cascade Mountains in Oregon. Though heavily logged by the timber industry for its straight-grained ...

CORVALLIS, Ore. – 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 ...

SEATTLE — A Douglas fir was cut down Monday in Seattle's Maple Leaf neighborhood after activists attempted to stop the tree's removal. Pacific Tree Management cut down the tree near 90th Street and ...

Douglas-fir (Pseudotsuga menziesii) is one of the premier species of the Western forests. Not only is the wood exceptionally strong for its weight, but the trees are abundant. Trees can grow over 250 ...

There is a low-key battle with bark beetles underway on the flanks of Aspen Mountain. Colorado State Forest Service workers marched down steep slopes two weeks ago, stapling thousands of pheromone ...