Lilac leaves curling - Ask Extension
This late spring I have noticed lower leaves on a lilac bush curling, cupping and wrinkling. This bush is 25 years old and has always been healthy. I ...
Knowledgebase
Lilac leaves curling #832548
Asked May 29, 2023, 3:06 PM EDT
This late spring I have noticed lower leaves on a lilac bush curling, cupping and wrinkling. This bush is 25 years old and has always been healthy. I cannot find any evidence of insects, mildew, or fungus. Could you please tell me what's causing this. Thank you.
Gem County Idaho
Expert Response
Hi Shawn,
I do not see any insects, pathogens (bacteria/fungal/viral) or any other source of this leaf curling. I'm wondering if you or a neighbor has used any herbicide this spring close to the lilac shrub? The leaf epinasty (curling, especially near the apex/margin) looks diagnostic to some volatilization of herbicide. Anyway you could contact my e-mail address: <personal data hidden>?
Thank you!
I do not see any insects, pathogens (bacteria/fungal/viral) or any other source of this leaf curling. I'm wondering if you or a neighbor has used any herbicide this spring close to the lilac shrub? The leaf epinasty (curling, especially near the apex/margin) looks diagnostic to some volatilization of herbicide. Anyway you could contact my e-mail address: <personal data hidden>?
Thank you!
