Has anybody tried 10% milk spray for powdery mildew

A friend of mine swears by this, just wondering if anybody has tried it- just spotted the white dust on a few lower leaves , removed them, but am wondering what is best to spray

Old School trick , I never have had PM indoors to use it inside , but outside under sunshine it really works ........

mil could work.... i have rubbed pure neem oil from a paper towel and that has always worked for me for little spots.

i'm a big fan of the milk spray.
try to do it so you give it enough time to dry before lights out.