A deadly pest may lurk somewhere in east Asia, an insect or a fungus that could decimate the Pacific Northwest's vast forests of Douglas fir should it ever reach this region's shores. The possibility ...
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 ...
In 2008, scientist Bryan Black took core samples the diameter of a pencil from a forest near the north Oregon coast. Most of the trees were hemlocks and Douglas fir that had been undisturbed for about ...
Drought can damage and sometimes kill Douglas-fir trees. Dying trees have been spotted frequently in western Oregon this spring. (Glenn Ahrens) Many Oregonians have noticed widespread damage in ...
Q: I have 30 Douglas fir trees planted 10 feet apart alternating in two lines. They are 30 feet tall and about 10 years old. They have begun to drop their needles randomly. I'm worried I'm going to ...
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 ...
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