Phomopsis Gall

Participants in the Diagnostic Walkabouts held as part of the Ohio Chapter ISA Field Day last Friday in Heritage Park, Westerville, OH, observed woody stem galls on hickory (Carya sp.). The galls were observed on the main stem and branches of two mature hickories growing just inside a forest next to a paved trail.

Dave Leonard (Consulting Arborist, Dave Leonard Tree Services, Lexington, KY) brought a fascinating gall sample to the Greater Cincinnati Diagnostic Walk-About last week. The woody galls were on hickory (Carya sp.) and sparked an informative diagnostic discussion among the participants.