A state’s insect expert called the discovery of a tree-killing bark beetle ... but then reports of pine deaths in University Place, Renton and Seattle were linked to the beetle.

Colorado’s popular recreation areas were hit especially hard by the epidemic. Out of about 4.1 million acres of pine forests ...

The Southern pine beetle is "killing the pine barrens," Romaine said ... These tiny insects burrow under the outer bark of the trees, laying eggs and building tunnels that interfere with the ...

All across the United States and Canada, tiny pine bark beetles are killing trees. From the northern pine bark beetle in Canada, the mountain pine bark beetle in Colorado, Montana, and Idaho to the ...

Previous studies reported that in response to warmer temperatures, the mountain pine beetle has substantially increased its geographic range, killing trees 450 miles further north in Canada and 2,000 ...

It’s native to western pine forests, especially lodgepole and ponderosa forests, where it normally lives in relatively small numbers, killing a ... about where the bark beetle will be in five ...

The tree is primarily threatened by an introduced fungal pathogen known as white pine blister rust. It is increasingly threatened by climate change, which is leading to increased fires and mountain ...