Hey GC, hope everyone is doing well. I've been fighting powdery mildew during every grow so far and still have no solution. According to Jorge Cervantes, you can wash off powdery mildew in a H2O2 + water bath once harvested but my plants are just beginning to flower and I'm wondering what I can do to save them? They are large and healthy looking aside from the small amount of pm. Is it possible to do a "bath" on a living plant, or would soaking it in the H202 solution kill the plant? I've heard of people spraying with a solution but it doesn't seem to me like it would have the same soaking effect. here is the video I watched. [ame=http://www.youtube.com/watch?v=S7jE7qzfgQs]Jorge Cervantes: Washing Away Powdery Mildew - YouTube[/ame]
sorry but yer not gonna like my advice on PM on flowering plants ..on yer next run though...I only recommend this on non-flowering plants, but I used to have PM really bad in all my grow areas and I did a single application of sm-90 and I haven't seen PM, mites or thrips in over a year now. The stuff is pretty nasty and is systemic..meaning it gets inside the plant to kill the PM..so it cannot be used on flowering plants or plants that will go into flower soon. lol...I still have an almost full bottle of this stuff. I used all the other methods without success (4 month battle in and out of flower) ...greencure, PMwash, serinade, bakingsoda and water, ph'd water, plainwater, skim milk, etc.... I finally ended up having to completely redo my mother plants by cutting tiny clones off them and spray them with the sm90...throwing away all the original mother plants and spraying all surfaces and getting new intake filters .... but it was all worth it in the end to save my strains. I hate the idea of spraying anything on my plant that will end up in the bud....makes me cringe.
