PHILADELPHUS DISEASES

By The Old House Web

PHILADELPHUS DISEASES


A canker, caused by Nectria cinnabarina kills the stems. Prune out and destroy infected stems. There is no chemical control for the disease.

Leaf spots of various types may be a problem in rainy seasons. Pick off and destroy infected leaves. Use basic copper sulfate for severe infections.

Powdery mildews of different genera causes a white coating on the leaves. Use sprays of benomyl or sulfur.

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