Beetle-killed trees in Colorado’s Never Summer Mountains near Gould. Tree mortality in 2011 The 2011 Norton Point Fire in Shoshone National Forest, Wyoming, burned both beetle-damaged and healthy ...

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 ...

Helena’s recent wave of brutally cold temperatures probably isn’t doing much to beat back the mountain pine beetle infestation that’s killing hundreds of thousands of evergreen trees around here.

BISHOP, Calif. — Forest pathologist Martin MacKenzie strode forward on a narrow path through California’s mythic bristlecone pine forest in the White Mountains near the Nevada border, methodically ...

This month's early cold snap may have killed a few mountain pine beetles, but probably not many, according to a scientist with the U.S. Forest Service. Unseasonably cold weather sometimes is more ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. FORT COLLINS, Colo. — The latest findings ...

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 ...

CHERRY HILLS VILLAGE, Colo. — A homeowner in Cherry Hills Village noticed that his 90-foot spruce tree wasn't looking so good this spring. By August, the tree was almost completely dead. Denver ...

JOINT BASE LEWIS-MCCHORD, Wash. — A state’s insect expert called the discovery of a tree-killing bark beetle in a Bothell trap “concerning.” Washington state officials have been tracking the migration ...

11:07 a.m. June 29, 2022: A previous version of this story misspelled Constance Millar’s first name. Forest pathologist Martin MacKenzie strode forward on a narrow path through California’s mythic ...

Forest pathologist Martin MacKenzie strode forward on a narrow path through California’s mythic bristlecone pine forest in the White Mountains near the Nevada border, methodically scanning gnarled ...