Eastern Oregon's Malheur National Forest boasts some of the state's oldest trees, including pine and larch that live more ...

Scientists and students gather each summer at the remote Shingle Shanty Preserve and Research Station to study birds, bogs ...

More than half a million acres of trees spread across Washington were sick, struggling, or dead last year, according to the ...

Annual cold snaps have kept some invasive tree pests in check, but outbreaks could become more common with warming ...

Parts of the North Cascades and Mount Baker are facing an outbreak of the western spruce budworm, aerial surveys reveal. The ...

In the Thuringian Forest or the Harz Mountains, dead spruce trees (Picea abies) dot the landscape like skeletons. Many have already fallen or been cut down. These dead trees serve as memorials to the ...

06/24/2025 10:39 Norway spruce trees produce a mixture of substances as protection against insects and fungal infestation Angela Overmeyer Presse- und Öffentlichkeitsarbeit Max-Planck-Institut ...

Some trees across Prince Edward Island are dying as the population of spruce bark beetles surges because of stress and damage caused by post-tropical storm Fiona in 2022. Experts say the beetles’ ...

The iconic Sitka spruce at Yaquina Bay Recreation Site will remain standing as a 20-foot snag with its distinctive feature intact.

Caterpillars that are camouflage experts and known to cause damage to a variety of plants are now hatching in Ohio.  Joe ...

What’s a spruce aphid? Spruce aphids are small, invasive green insects that feed on the sap from Sitka spruce trees and take the moisture and nutrients from older needles. Spruce aphids have ...