It’s not just the lodgepole pines that are dying in the Colorado mountains. Thirteen percent of aspen trees in the state are now affected by Sudden Aspen Decline, which is caused by disease and ...

A new tree disease, known as aspen running canker, was recently discovered in the N.W.T. This disease is often fatal to the ...

FISHLAKE NATIONAL FOREST, Utah — The world’s densest living organism is right here in Utah. It’s a clone of Aspen trees called Pando, which are connected through a single root system weighing a total ...

When we walked with a colleague into an aspen forest near Madison, Wisconsin, in the early spring of 2021, we expected to finalize our plans for a research project on several species of insects that ...

It is the season of envy in Colorado. The all-too-brief time of year when we admire our forests in their finest states — awash in gold. It is, of course, aspen putting on the dazzling displays. This ...

I was up in the White Mountains this weekend, walking out to my car in the AMC’s Highland Center parking lot after a hike, and there between the buildings and the cars was a gorgeous aspen tree ...

The first case of aspen running canker in the territory was confirmed by field crews from Wilfrid Laurier University and the N.W.T. forest health surveys last year. Tamara Merritt has more.