Why does my lilac have white fuzzy stems. How do I get rid of this or do I throw out the plant? Zone 7 New York
White fuzzy stems
It's either powdery mildew (common in lilacs) or white prunicola scale which is a tiny insect that looks like fuzz. Increase sunlight if possible and prune to increase air circulation. If scale, horticultural oil should do the trick. Neem oil is good
emors
Jan 29, 2026
I think it might be aphids or powdery mildew
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