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Stephanie’s lilac #878645

Asked July 24, 2024, 6:55 PM EDT

This lilac bush looks very distressed. Any idea what the disease is and how to treat it in an environmentally safe way if possible. Thanks.

Ramsey County Minnesota

Expert Response

Lilac blight is very prevalent right now. See these web pages.
https://extension.umn.edu/plant-diseases/leaf-spot-diseases-trees-and-shrubs#bacterial-leaf-spots-1156513
https://extension.oregonstate.edu/news/how-recognize-treat-avoid-lilac-bacterial-blight
http://plantclinic.cornell.edu/factsheets/lilacbacterialblight.pdf

Linda G Tenneson, Benton County Extension Master Gardener & Tree Care Advisor Replied July 24, 2024, 9:26 PM EDT

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