About getting under the canopy, if you want to go hi-tech you can get a fogger to spray an antifungal. It will drift everywhere, even to leaves that have only a tiny bit of air space.
Opie Yutts Reviewed by Opie Yutts on . Preventing Powdery Mildew I have a particular strain of mj that is a Master x Bubba hybrid. It's a really potent strain that I really like. The only problem is, it's highly susceptible to powdery mildew. I have six different strains of mother plants growing together in the mother cab. The MxB will get covered with powdery mildew while all the plants around it have none. I'm a couple weeks into veg on some plants that were cloned from the mother and I noticed yesterday that the leaves have a slightly dull patina to them Rating: 5