| I recently noticed that the leaves on my lilacs have begun to curl and the leaf edge is dried like a pH soil problem. They looked healthy early in the season and bloomed well in the spring. The area in which they are planted is mostly sunny, well drained, sandy.
Any idea what's going on?
|Lilacs are subject to fungal diseases and a bacterial leaf blight. Without seeing the plant, it is difficult for me to make a diagnosis and suggest control remedies. Here's a website from Cornell University with photos of lilac leaf blight, along with control recommendations. Hope it's helpful!