Answer: White spots can indicate a fungal disease but might also be caused by insect feeding. Look on the undersides of the leaves to see if you can find insect pests. Without knowing for sure what the problem might be, I can't really make a control recommendation. Why not clip off a few of the affected leaves and take them to a well staffed nursery or Master Gardener Clinic? Helpful folks there can help diagnose the problem and make control suggestions. Best wishes with your azaleas.
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