Red Blotches on Nandina - Knowledgebase Question

Duvall, WA
Question by joanna07
August 16, 1999
My Nandina is developing red blotches on the upper surface of the older leaves. Is this normal or is it suffering from a nutritional deficiency? The plant seems healthy enough otherwise.

Answer from NGA
August 16, 1999


Nandina can be host to the fungus Cercospora nandinae which causes red leaf spots. Generally it does not need to be chemically treated, but you may want to remove the infected leaves to prevent the spread of this fungus. Pinching and pruning will open the plant up to better air circulation which will in turn help control the disease.

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