Answer: Aspens are a unique tree. When we see beautiful groves of them growing wild in the mountains, we seldom look closely to observe the insects and diseases which are right there with them. They ...

Gardening season is underway, and you may have questions. For answers, turn to Ask an Expert, an online question-and-answer tool from Oregon State University’s Extension Service. OSU Extension faculty ...

Quaking or trembling aspen is a short-lived (50 years), fast-growing, medium-sized tree. It seldom exceeds 60 feet in height and 20 inches in diameter. Although it has some good ornamental ...

FLAGSTAFF — As flurries started to descend on the forest floor, a team of researchers examined a stand of sickly quaking aspen trees off U.S. Highway 180, just north of Flagstaff. To an untrained eye, ...

Waring and her fellow researchers say the threat to aspens, the most widely distributed tree in North America, is so great that there could be a future where aspens no longer grow in the Southwest.

The Roaring Fork Valley experienced a spread of Douglas fir, spruce and western balsam bark beetles last year but the infestations remained light compared to many other parts of the state, according ...

On a drive from Durango to Cortez, groves of aspens house dead and dying trees, ghostly reminders of the lingering effects of a drought 20 years ago and the region’s changing climate. Sudden aspen ...

A symbol of the Western mountains, the Aspen tree, is rapidly disappearing from the landscape at a rate not previously seen. The drop-off is unnerving in areas such as northern Arizona, where ...