Grace Moeggenborg, a recent graduate of Michigan Technological University, is researching whether balsam fir oil can kill ...

A new study finds the West is likely to see slower-growing Douglas fir trees in the future, as temperatures and droughts increase with climate change. Researchers with the University of ...

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 ...

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 ...

A Christmas tree from Schuylkill County was voted the grand champion tree at this year’s Pennsylvania Farm Show, meaning the ...

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 ...

While artificial Christmas trees might be the popular choice during the holiday season, nothing beats the smell of a fresh balsam fir. But new research out of the University of New Brunswick shows the ...

Phytophthora root rot is a stubborn enemy for some Christmas tree growers No fungicide has proved effective to control Phytophthora Growers turning to species from Europe%2C Asia that are more ...

PORTLAND — Fir trees in Oregon and Washington died in record-breaking numbers in 2022, according to as-yet-unpublished research conducted by the U.S. Forest Service.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 ...

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 ...