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White fuzz on physocarpus

9 years ago

Hi! I have an issue with my ninebark in a pot. As you see it is slowly being covered by a white fluffy substance. I thought it might be mealy bugs and so sprayed it down with isopropyl, but the next day the fuzz returned in exactly the same spots as before, and it is spreading. Does this require repeated treatments? Or is this something else altogether? None of my other plants are affected.

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Comments (3)

pwin
Original Author
9 years ago
Another
Marie Tulin
9 years ago
powdery mildew. physocarpis is somewhat susceptable to it. (but no one told me!)
I've had several ninebark for about 3 years and this is the first year one of has mildew. Check the web for controls, because I don't remember and haven't done anything about it.
Good luck.
marie
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pwin
Original Author
9 years ago
Thank you. I'm sorry for my late response.

The last plant that had powdery mildew shed all its leaves. The next year it came back beautifully. I'll see what I can do for this plant. The situation isn't horribleÃ¢ÂÂ¦ yet.

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