Loveland’s tree streets include 22 streets named for trees in the Pine Family. The family includes 234 species worldwide and they separate into nine groups: cedars, Douglas-firs, firs, golden-larch, ...

COEUR D'ALENE, Idaho -- If you want to impress your friends with your tree knowledge on your next hike, check out the upcoming class from UI Extension Forestry. On April 26, The UI Extension Forestry, ...

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 ...

A decade-long die-off of Douglas fir trees centered in southwest Oregon has recently accelerated, potentially requiring ...

Drier summers and a decline in average snowpack over the past 40 years have severely hampered the establishment of two foundational tree species in subalpine regions of Colorado’s Front Range, ...

Drought and insects have killed an unprecedented number of Oregon’s Douglas fir trees during in southwest Oregon and the ...

Fir trees in Oregon and Washington died in record-breaking numbers in 2022, according to as-yet unpublished research conducted by the U.S. Forest Service. Called “Firmageddon” by researchers, the ...

Moths described as voracious feeders are damaging Douglas-fir trees throughout western Montana, according to a news release from the Montana Department of Natural Resources and Conservation. The ...

An invasive bug that kills fir trees has been detected in northern Michigan, state officials said Tuesday. The balsam woolly adelgid has been found in trees on a residential property in Missaukee ...