How to kill Powdery Mildew (check it out)

Skybound;2353287 said:

I stumbled onto this about a week ago in passing when researching something else. I have yet to experience PM, but if I ever get it, this is what I think I'd try first as the silica is already in my regimen, would just need to get it outta the res and into a foliar feed. Just one to consider is all.

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