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 ...

Ponderosa pine forests in the Sierra Nevada that were wiped out by western pine beetles during the 2012-2015 megadrought won't recover to pre-drought densities, reducing an important storehouse for ...

Bark beetles are only about the size of a grain of rice. But for such tiny critters, they can take a big bite out of the forest. There are more than 100 species of bark beetles in Idaho, said Gina ...

Minnesota agriculture officials are sounding the alarm for yet another invading insect. This time it’s the mountain pine beetle that’s already devastating forests of the Rocky Mountains and has moved ...

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 ...

The Naches Ranger District, part of the Okanogan-Wenatchee National Forest, spans 518,000 acres near Naches to the Cascades in the William O. Douglas, Norse Peak and Goat Rocks wildernesses and the ...

The Crystal Lake recreation area in the San Gabriel Mountains and Angeles National Forest will temporarily close Tuesday through Sunday to stop a tree-colonizing beetle from spreading. What's ...

HAMILTON - The mountain pine beetle gets most of the blame for killing vast swaths of evergreens across the West. But there's another tree-munching insect that's causing trouble in the Bitterroot ...

A pine beetle epidemic in Colorado is killing hundreds of thousands of trees and turning the state's forests brown. Elise Thatcher, a producer for Colorado Matters on Colorado Public Radio, says there ...

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 ...

LOS ALAMOS, N.M., April 4, 2023—Ponderosa pine forests in the Sierra Nevada that were wiped out by western pine beetles during the 2012-2015 megadrought won’t recover to pre-drought densities, ...