Add Yahoo as a preferred source to see more of our stories on Google. Eastern hemlock and balsam fir trees laden with snow in North Berwick, Maine. We had our first winter snow storm this past weekend ...

The balsam woolly adelgid, a tiny nonnative flightless insect, is spreading across the American West killing subalpine fir in northern Utah's recreation-heavy mountain ranges and canyons. Rsearchers ...

Spring has started with some good weather. Are you out gardening? Do you have questions? For answers, turn to Ask an Expert, an online question-and-answer tool from Oregon State University’s Extension ...

Federal officials are enlisting arborists and other tree experts as they scramble to develop a plan to protect one of the world’s tallest non-redwood trees from losing a significant chunk of its ...

Fir trees are dying in the Lake Tahoe Basin at a quicker rate than in the rest of California. The trees are perishing in greater numbers and faster than previously seen before, especially near Fallen ...

We had our first winter snow storm this past weekend, a nice change from the warmer than usual conditions across most of the country. Snow is an important part of our local ecosystems, the plants and ...