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

Four property owners are still accused of cutting down King County trees to improve the view from their homes.

Hotspots for the conservation of maire tawake or swamp maire in the Wellington region have been identified by researchers ...

King County has now filed a lawsuit seeking nearly $7 million in damages, accusing several homeowners of illegally cutting ...

Originally published in 1945 as v. 10, no. 1, of University of Washington publications in anthropology Includes bibliographical references (page 65) and index Introduction -- The plants and their uses ...

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

Pine sawflies are invasive bugs that resemble wasps and are taking over pine trees in Washington's Pierce County.