My crepe myrtles are covered with a black smut on the leaves, and they are now dropping leaves. They are also not blooming. Is this a fungus I can treat?
Crepe Myrtle Fungus
Certified GKH Gardening Expert
This problem is common and is called sooty mold. The following articles should be of some help to you: https://www.gardeningknowhow.com/plant-problems/disease/how-to-get-rid-of-sooty-mold.htm