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 ...

BILLINGS, Mont. (AP) — Whitebark pine trees can live more than 1,000 years, but in just two decades more than a quarter of the trees that are a key food source for some grizzly bears have been killed ...

When Sam Hitt first saw his favorite white pine in the Santa Fe National Forest about a decade ago, he stopped dead in his ...

Researchers have sequenced the whitebark pine genome, presenting new opportunities to help the threatened, high-altitude tree endure environmental challenges. “Sequencing the whitebark pine reference ...

Invasive white pine blister rust is killing native evergreens, but a Sheboygan horticulturist at Bookworm Gardens says simple pruning can save infected trees.

If you see pine trees turning orange and yellow this season in New Hampshire, don’t be too alarmed. They’re probably not dying, according to Kyle Lombard, a forest health specialist with the New ...

Whitebark pine trees, which mainly grow in high-elevation alpine areas, are threatened by diseases and insects, according to the federal government. BILLINGS, Mont. — Whitebark pine trees can live ...

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 ...

Whitebark pine is a threatened tree species that provides ecological and cultural value across its range in the U.S. West and Canada. Scientists have sequenced its genome, presenting new opportunities ...