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Euonymus Diseases

Informational table showing disease name, symptoms, pathogen/cause, and management of Euonymus diseases.
Disease Symptoms Pathogen/Cause Management
Anthracnose Small spots pepper leaves of evergreen euonymus. An orange-brown, slightly raised stem canker may develop and cause branch dieback. Glomerella cingulata (asexual stage is Colletotrichum gloeosporiodes) Avoid overhead watering in the nursery and landscape. Inspect containerized plants and do not use those already infected. Apply a fungicide to protect healthy leaves.
Crown gall Galls 1/4 inch to several inches in diameter form on stems or roots. These are white at first and firm like cauliflower but become hard and dark brown with age. Agrobacterium tumefaciens carrying a gall-causing plasmid Purchase gall-free plants. Never plant galled material. Plants not severely affected should be cared for well so that they are not under other stresses. Severely affected plants should be removed. Do not replace the plant with gall-susceptible woody or herbaceous plants. Dip cuttings in Agrobacterium radiobacter, a biological control agent.

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Crown gall.

Anthracnose on Euonymus
Anthracnose.

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Article Details

Title

Euonymus Diseases

Code

XL0031

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