Annosus Root Rot
Annosus root rot, Heterobasidion annosum.
Considered the most economically important forest pathogen in the Northern Hemisphere, infecting mostly conifers. The taxonomy is confused: this is just one of many species names; there may be multiple actual species.
On what looks like black locust, Robinia pseudoacacia.
Terminal 105 Park, Seattle, Washington State, August 29, 2019.
Annosus Root Rot
Annosus root rot, Heterobasidion annosum.
Considered the most economically important forest pathogen in the Northern Hemisphere, infecting mostly conifers. The taxonomy is confused: this is just one of many species names; there may be multiple actual species.
On what looks like black locust, Robinia pseudoacacia.
Terminal 105 Park, Seattle, Washington State, August 29, 2019.