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 ...

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 ...

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 ...

Mountain pine beetle life cycle 101 During their one-year life cycle, the females start flying usually in July and bore into healthy trees usually 5 or more inches in diameter, release pheromes to ...

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., November 23, 2021—In California’s Sierra Nevada, western pine beetle infestations amped up by global warming were found to kill 30% more ponderosa pine trees than the beetles do ...

The Local newsletter is your free, daily guide to life in Colorado. For locals, by locals. Herbal tea may soothe your nerves, but it’s stinky stuff if you’re a bark beetle. So say U.S. Forest Service ...

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 ...

People looking across the Columbia River Gorge will notice dead pine trees dotting the landscape. The Columbia River Gorge Commission and Washington State University Extension Service say the trees ...

Hot temperatures usually make people tired and lazy, but for the western bark beetle, the heat just makes them want to have a lot of sex — and that’s bad news for giant pine trees scattered across the ...

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 ...

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 ...