Ounce of Prevention: How to avoid powdery mildew on a cannabis grow

Personally, I’m more of a purist. I’d rather avoid a powdery mildew outbreak in the first place than use chemicals to get rid of it, partly because the residue from chemicals may be safe to eat, but that doesn’t mean it is a good idea to burn and inhale them, and that’s what’s going to happen to a lot of cannabis crops. There’s also the issue of what part of the country you’re growing in. In some places, medicinal crops are tested, in others everything is tested, and in some places end users may never know what’s on the product.