fungus or insect - Knowledgebase Question

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


Image
Answer from NGA
March 20, 2009

0

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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