My lilac needs help! - Ask Extension
What is happening to my lilac and what should I do to help it?
In the course of a week, my lilac leaves have turned brown (no spots) around the edg...
Knowledgebase
My lilac needs help! #877606
Asked July 17, 2024, 11:42 AM EDT
What is happening to my lilac and what should I do to help it?
In the course of a week, my lilac leaves have turned brown (no spots) around the edges and throughout the leaf, and fallen. The lilac flowered well this spring, and has seemed fine. There has been no trimming, nothing different than usual. It is a mature French lilac (as I’ve always know it), probably 50 or more years old. It is in the SW corner of the lot so it gets plenty of sun. No additional watering beyond our abundant rainfall.
What should I do to help my tree?
Hennepin County Minnesota
Expert Response
Ascochyta or bacterial blight. See the management section of this web page.
https://extension.umn.edu/plant-diseases/leaf-spot-diseases-trees-and-shrubs
You can send a sample to the plant disease clinic for a $50 fee, if you want a definite diagnosis. https://pdc.umn.edu/
https://extension.umn.edu/plant-diseases/leaf-spot-diseases-trees-and-shrubs
You can send a sample to the plant disease clinic for a $50 fee, if you want a definite diagnosis. https://pdc.umn.edu/
