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RE: My attempt to control Powdery Mildew on my squash with this recipe
Our tried and true solution is 50/50 milk to water sprayed on the leaves. I usually pull the really infected leaves first. Easy, peasy and works like a charm!
I have read about this and want to try it, but milk is a bit expensive when I have as many plants as I do. So far this is showing potential, I just need to do another application this evening as I didn't get everything coated like I need to.