Euonymus Diseases: Anthracnose and Crown Gall Management

Disease Reference Table

Disease	Symptoms	Pathogen/Cause	Management
Anthracnose	Small spots pepper leaves of evergreen euonymus. Orange-brown, slightly raised stem canker may develop, causing branch dieback.	Glomerella cingulata (asexual: Colletotrichum gloeosporioides)	Avoid overhead watering in nursery/landscape. Inspect containerized plants; do not use infected ones. Apply fungicide to protect healthy leaves.
Crown Gall	Galls ¼" to several inches on stems/roots; white and firm (cauliflower-like) initially, becoming hard and dark brown with age.	Agrobacterium tumefaciens carrying gall-causing plasmid	Purchase gall-free plants. Never plant galled material. Care for mildly affected plants to reduce other stresses. Remove severely affected plants. Do not replace with gall-susceptible woody/herbaceous plants. Dip cuttings in Agrobacterium radiobacter (biological control agent).

Crown gall; Anthracnose.

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