Invasive insect species have, in the past 20 years, replaced native insects as the "biggest problem" facing Wisconsin's trees, said Bill McNee, a forest health specialist at the Wisconsin Department ...

FLAGSTAFF — As flurries started to descend on the forest floor, a team of researchers examined a stand of sickly quaking aspen trees off U.S. Highway 180, just north of Flagstaff. To an untrained eye, ...

As the Twin Cities fight against the infestation of an invasive beetle by removing Ash trees, new varieties of trees are being planted in their place. Since planting began on April 8, Minneapolis has ...

Some Kansas trees are having a harder time than others withstanding the bitter cold of winter.

Climate-induced warming is fueling the proliferation of insects keen on invading Colorado’s forests and leaving the trees they devour for dead, a new report has found. After a wet and cool 2023, ...

Stick bugs are a fascinating insect variety. They have uniquely camouflaged bodies that make them fun models in science education. But their eating habits can devastate trees and damage forests. This ...

The Forestry Division says that last year, about 209,000 acres of trees died ...