Lilac leaves browning and shriveling - Ask Extension
Hi, I've got these lilac bushes with leaves that are turning brown and shriveling up. Is this lilac blight? Is there a way I can treat this? Or should...
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Lilac leaves browning and shriveling #877750
Asked July 18, 2024, 10:00 AM EDT
Hi, I've got these lilac bushes with leaves that are turning brown and shriveling up. Is this lilac blight? Is there a way I can treat this? Or should I prune some of the branches that have these leaves?
Anoka County Minnesota
Expert Response
Hi Mike,
Your first photo looks like powdery mildew. See this page, and follow the links for recommendations on what to do:
https://apps.extension.umn.edu/garden/diagnose/plant/deciduous/lilac/leavesblotches.html
You'll see information on bacterial blight right below the mildew information.
Good luck.
