BLACK SPOT FUNGUS
HAVE WHAT MY SISTER CALLS "BLACK SPOT FUNGUS". WHAT IS IT AND HOW DO I GET RID OF IT?
Certified GKH Gardening Expert
Unfortunately, your photo did not come through. I cannot say for sure whether it is or not. I can provide an article that we have. It will explain what this is and how to control it: https://www.gardeningknowhow.com/plant-problems/disease/black-spot-fungus.htm