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 ...

The Douglas fir, also called a Douglas tree, Oregon pine or Douglas spruce, can grow hundreds of feet high — and the oldest of the species can live for over 1,000 years. The Douglas fir was named ...

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 ...

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.

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 more than ...

A decade-long die-off of Douglas fir trees centered in southwest Oregon has recently accelerated, potentially requiring forestland owners to change management strategies, experts say. Over the past 10 ...

All my life I’ve been hearing about Douglas firs. Who was Douglas, and why does he get to have a tree named after him? —Fir Burger Behold the mighty Douglas-fir, a tree whose story is as rich in ...

The world’s tallest Douglas fir is damaged but alive after burning for nearly a week in Oregon. On August 21, arborists climbed the famous 327-foot-tall tree known as the Doerner Fir and used a hose ...

The acre of coast redwood trees here in Mason County, Washington, was planted over three decades ago and has grown roughly twice as fast as its 130-year-old native neighbours of Douglas fir, hemlock ...

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 ...

The world’s tallest Douglas fir is damaged but alive after burning for nearly a week in Oregon. On August 21, arborists climbed the famous 327-foot-tall tree known as the Doerner Fir and used a hose ...