When adult beetles emerge from a tree in late spring, they search for a living pine tree, attack "en masse" and kill it, start excavating egg galleries within a day, and lay eggs within a few days.

That’s when he found out about beetle kill pine. Since the early 2000s, Colorado has faced epidemic levels of bark beetles, which bore into trees and ultimately kill them. One species ...

Even the few species that do kill trees tend to target highly stressed ones. The mountain pine beetle is the bad bug of the bunch. Given the right conditions, it can ravage one healthy tree after ...

Forestry officials say that 2024 was a better year for statewide Pine tree populations when compared to the weather extremes ...

Because of those factors the pine beetles were able to infest ... "We deal with everything from avalanche, rock slide, tree fall and beetle kill — (which) has been an issue on some of the ...

Fire suppression and an invasive fungal disease known as white pine blister rust had already harmed this important high-country tree population. Now warmer temperatures have sped up the beetles’ ...

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 ...