Knowledgebase
Lilac Bacterial leaf Blight #878380
Asked July 23, 2024, 9:32 AM EDT
Dakota County Minnesota
Expert Response
Hi,
Thank you for the question.
Lilac blight is a bacterial disease that can be difficult to control because the bacteria can spread easily through wind and rain. Here are some tips for treating lilac blight:
- Prune infected branches. When you notice infected branches, prune them 6–12 inches below the infection into healthy wood. Prune during dry weather and disinfect your tools between cuts with a 10% bleach solution or 70% alcohol. You can burn or bury the pruned branches, but check your local ordinances first.