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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

This work is supported in part by New Technologies for Ag Extension grant no. 2020-41595-30123 from the USDA National Institute of Food and Agriculture. Any opinions, findings, conclusions, or recommendations expressed in this publication are those of the author(s) and do not necessarily reflect the view of the U.S. Department of Agriculture.

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