A disease is present throughout forests in the Northwest, and researchers say it’s a pathogen as old as the trees themselves.

The goldspotted oak-borer, an invasive beetle responsible for killing 200,000 trees in Southern California, is now present in ...

The ash trees in the Columbia park are brittle and at risk of falling after dying from infestation by the emerald ash borer.

When winter is upon us, we are aware of our shorter days and colder temperatures. Animals have their own adaptations for ...

Public comments accepted through Feb. 9 on measure that would require heat treatment for imported campfire logs while ...

The elm zigzag sawfly has spread to 15 states in five years. Now it's attacking the tree that cities planted to replace Dutch ...

Raymond Culbertson. We all know trees are climate heroes. They pull carbon dioxide out of the air, release the oxygen we ...

MaMA has so far identified more than 230 lingering ash trees. Most are from the Hudson Valley region, ground zero for the ...

Dallas officials warn the emerald ash borer could impact hundreds of thousands of trees, forcing removals while the city ...

The much-loved trees that have shaded the library's garden and downtown Water Street for decades are deteriorating and could ...

Metagenomic sequencing of tree bark microbiota indicated their ability to process some atmospheric gases, highlighting their ...

We already knew forests were heavy lifters in reducing climate pollution. New research reveals the tiny microbes in tree bark ...