There is a low-key battle with bark beetles underway on the flanks of Aspen Mountain. Colorado State Forest Service workers marched down steep slopes two weeks ago, stapling thousands of pheromone ...

A nonnative tree-killing insect is invading northern Utah, attacking subalpine fir and potentially triggering yet another die-off of the region's long-stressed conifer forests. Introduced from central ...

The balsam woolly adelgid, a tiny nonnative flightless insect, is spreading across the American West killing subalpine fir in northern Utah's recreation-heavy mountain ranges and canyons. Rsearchers ...

While bark beetles have been slowly infesting trees in Aspen, winter won’t offer any respite. Aspen is currently home to the Douglas-fir beetle, the spruce beetle, the mountain pine beetle, Ips ...

LANSING, MI – Michigan agricultural officials issued an interior quarantine for Missaukee County this week to slow the spread of an invasive pest insect called balsam woolly adelgid. The bug is a tiny ...