Fir and spruce needles are attached to twigs one by one, while pines grow needles in bunches. Fir tree needles are soft and flat, while spruce needles are stiff and angular. Check out the best types ...

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 ...

Landscape and forest trees are experiencing widespread dieback this spring according to Glenn Ahrens, Oregon State University Extension Forester for Marion County. "Browning or dieback is usually ...

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 ...

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 ...

How smart are you? Well, then, what is the most common tree species in Maine? If you thought pine, you are wrong, even though we are called the Pine Tree State. Or, if you said the white birch, you’re ...

Add Yahoo as a preferred source to see more of our stories on Google. Balsam fir mortality could increase if climate change gets worse, according to new research from the University of New Brunswick.

Kairos Futura and Aspen Center for Environmental Studies are partnering to mobilize the local community in order to save ...