I believe my azaleas have powdery mildew. What is the treatment? I live in south Florida and my plants are located on the north side of the house. We are in the middle of a drought. These plants are well established - over 15 years old. This is the first trouble. What do I spray on them?
Azaleas With Powdery Mildew
Certified GKH Gardening Expert
You can use a fungicide to treat the powdery mildew. You may also want to do a little clean up pruning to help open up the plant a bit and get some air circulation going. This will help keep the powdery mildew from forming.
This article will also help: