brown spots on lilac leaves - Gardening
Q My 30-year-old lilacs are getting lots of brown spots on their leaves, and some of the leaves are falling off. The same thing happened last year. What’s wrong with them, and what can I do to ...
May 18, 2026
Q My 30-year-old lilacs are getting lots of brown spots on their leaves, and some of the leaves are falling off. The same thing happened last year. What’s wrong with them, and what can I do to ...
Understanding the Context
St. Louis Post-Dispatch: Brown spots on lilac could be a leaf spot disease Lilacs are currently losing their leaves due to a disease called lilac leaf blight, caused by the fungus Pseudocercospora spp. Common throughout Vermont and the Northeast region, this disease also ...