Articles

Hackberry Disease

Informational table showing disease name, symptoms, pathogen/cause, and management of Hackberry diseases.
Updated:
November 15, 2023
Disease Symptoms Pathogen/Cause Management
Witches' broom Many short twigs develop close together from a swelling on a branch. The tree may be covered with witches' brooms. Sphaerotheca phytophila (a powdery mildew) and an eryophyid mite (Eriophyes celtis) Remove unsightly trees.
Gary W. Moorman, Ph.D.
Professor Emeritus
Pennsylvania State University