The frontline of Maine’s battle against the invasive hemlock woolly adelgid is concentrated in the Midcoast, where the tiny insect is wreaking havoc on its namesake evergreens.

It may be hard for Las Vegans to picture Nevada as a winter wonderland. But the state’s northern forests are already blanketed in snow, weighing down towering tree branches. Freshness fills the air, ...

BLAINE COUNTY, Idaho (KMVT/KSVT) —Christmas tree cutting season has arrived in the Sawtooth National Forest, where families ...

Vermont loves maples trees. So do these beetles that have wreaked havoc in Massachusetts. Here's how people are keeping them ...

Spongy moth and balsam woolly adelgid are two invasive Christmas tree pests on the Department’s “naughty list”.

It has a beautiful planting of white pines around the patio. The trees seem to be losing a lot of needles, and I am worried ...

Safford, his team and this writer are in the Inyo National Forest in the Southern Sierra Nevada mountains, more than 11,000 ...

In the heart of southern Lebanon, where pine trees once stood tall and abundant, a quiet crisis is unfolding. The cones are ...

Fall is here, and the leaves are changing colors while the temperature gradually cools. As we shift from the warm season to the cool season and then to winter, the trend is to clean yards of tree ...

1 Forestry Pest Control Research Institute, Jiangxi Academy of Forestry, Nanchang, China 2 Jiangxi Institute of Natural Resources and Monitoring, Nanchang, China Introduction: Pine wilt disease (PWD), ...

Rows of uniform holes, either horizontal (most commonly) or vertical, might look like an insect attack, but they are more likely caused by a bird with an unusual name – the yellow-bellied sapsucker ...

ENGLEWOOD, Colo. — As we're getting ready for the fall season, you might come across some pesky insects stowing away in your trees. Denver7 met up with certified arborist Tony Hahn of DCPS and a ...