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

Foresters are looking to hone their management of Douglas fir trees in the wake of a new state report that says a changing climate likely will worsen the spread of a root-devouring fungus. A special ...

EAST LANSING, MI – Agricultural researchers want to determine where across Michigan two types of root rot are killing Christmas trees – a major crop commodity in the state. The U.S. Department of ...