Charles LaCalle, a resident of Santa Fe’s South Capitol neighborhood, labored hard hoping to rescue the fir tree in his front yard from an aggressive outbreak of the Douglas-fir tussock moth ...

Douglas fir dieback is spreading from southwest Oregon into the Willamette Valley. Long-term drought has led to swaths of weakened trees increasingly killed off by insects and disease. The flathead ...

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 ...

We had our first winter snow storm this past weekend, a nice change from the warmer than usual conditions across most of the country. Snow is an important part of our local ecosystems, the plants and ...

Drought and insects have killed an unprecedented number of Oregon’s Douglas fir trees during the last decade, costing billions in timber value, damaging infrastructure and ramping up wildfire danger.