fungus or insect - Knowledgebase Question

windermere, Fl
Question by rjricciac
March 20, 2009
gray powder on my holly plants

Answer from NGA
March 20, 2009


What you describe sounds like powdery mildew which is caused by fungus that attacks Holly leaves, sometimes covering them entirely with a thin white powdery coating.

You can prune out the damaged plant parts which will also open the shrub up to better air circulation or you can use a copper based fungicide on your hollies.

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