Lilac bush disease

Asked July 29, 2018, 8:57 AM EDT

What is cause of lilac bush leaf tips curling and dying (in summer)?

Buncombe County North Carolina

1 Response

Lilacs are very prone to powdery mildew which often causes the leaves to become distorted. The disease pressure has been extreme in our area given the rainfall earlier this spring. Without a closer look and more information about the plant this is the diagnosis for what you are seeing. Here is a publication from Clemson that has good description.