brown covering on my crepe myrtle leaves
What is causing brown covering on my crepe myrtle leaves? When I was looking at my trees the other day, I noticed a layer of brown on the top of the leaves. You can lightly rub it and it comes right off in flakes. Do I need to hose it down?
Certified GKH Gardening Expert
This sounds like Rust Fungus.
Here is a link with more information.