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, ...

NORTON SHORES, Mich. — A small insect could create a huge problem for one of Michigan’s most prominent tree species. Hemlock Wooly Adelgids, or HWAs, are tiny insects that nest at the base of hemlock ...

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 ...

TREES. INSECTS ARE FEEDING ON WHITE PINE TREES, AND THAT’S LEADING TO POSSIBLY DEADLY AND INFECTIONS. THE NC FOUR SERVICE FIRST NOTICED THE IMPACT ON TREES LAST SUMMER, AND NOW RESEARCHERS ARE LOOKING ...

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

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