Panda plant disease
White patches on leaves as if paint were splashed on it. Destroys the "fuzz" underneath it. Patches start out small and get bigger approx. 1/4 inch in diameter (irregular). Help!
Certified GKH Gardening Expert
This could be a leaf spot fungus. Keep a good air flow around the plant and avoid water splashing on the leaves.
An application of a fungicide can help.