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

In this 2017 photo, Brent Oblinger, a plant pathologist with the U.S. Forest Service, examines a section of root he dug up from the base of a grand fir tree near Walton Lake that shows signs of ...

When spring and summer rains combine with heat and humidity, we can expect the resurgence of warm-season turf diseases. One disease that is always present but really makes itself known in our ...