Spruce bark beetles hijack their host tree’s chemical defenses, transforming them into potent weapons against fungal threats.

Bark beetles convert spruce tree defenses into more potent antimicrobials to protect themselves, but a fungus can neutralize ...

Along with the tourist crowds that are flocking to Denali National Park and Preserve is another arrival: Masses of beetles have burrowed into the park’s spruce trees and begun killing them off. The ...

Editor’s Note: This article has been updated to correct the name of an organization that submitted public comment on the project. A project being proposed by the U.S. Forest Service aims to benefit ...

The U.S. Forest Service almost found the answer Wednesday to the age-old riddle, “If a 78-foot Christmas tree is felled live on Facebook and the sound is muted so no one can hear, does it still kick ...

A potentially devastating disease epidemic is attacking our region's most common evergreen trees. Colorado, Black Hills and Norway spruce have long been planted in yards and shelterbelts. Most of the ...

The name speaks for itself — Sitka Spruce Park on Amaknak Island has dozens of spruce trees, creating a rare forest-like sanctuary. Regional lands are known for their tundra valleys filled with ...

Seasonal workers climb tree after tree to collect seeds that will eventually help regrow forests, an effort that could get the country closer to its climate goals WHY WE’RE HERE We’re exploring how ...

In this episode of ID That Tree, Purdue Extension forester Lenny Farlee introduces the Black Spruce. This species is found in bogs, wetlands, and sometimes dry sites within the North Woods of Upper ...