A western pine beetle rests on a sap mound on a pine tree. - Charles Wollertz/Getty Images A thriving pine tree is a thing of beauty, but what if your pine tree doesn't seem so healthy? If you notice ...

A mountain chickadee peers down from its perch in a ponderosa pine. Click here for larger image. Photo by Jeff Mitton. As the most recent glaciers subsided, ponderosa pines move north from their ...

A persistent pest killing parched pines in Spokane’s oldest municipal golf course prompted park officials to take the extraordinary step of cutting down dozens of trees this winter. Earlier this month ...

BOULDER - Western U.S. forests killed by the mountain pine beetle epidemic are no more at risk to burn than healthy Western forests, according to new findings by the University of Colorado Boulder ...

Mountain pine beetle-killed trees at Lookout Pass in 2002. Provided by Idaho Dept of Lands. Bark beetles are only about the size of a grain of rice. But for such tiny critters, they can take a big ...

The mountain pine beetle infestation that has ravaged forests in the western United States and Canada in recent years appears to be losing its grip. Green saplings are rejuvenating previously ...

Some scientists and Colorado residents are raising concern that the state’s messaging and management of beetle-killed forests do not align with the published research on the interaction between dead ...

Trees, especially pine trees, are in for challenging times. Although pine trees are relatively drought tolerant, ongoing drought, as we’ve experienced in Marin County for several years, has caused ...

The beetle kill in the Gore Range stretches from Dillon, Colo. many miles to the north. Click on photo to see a larger image. Photo by Jeff Mitton. Western U.S. forests killed by the mountain pine ...