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  1. R

    Using UVC light to treat powdery mildew

    This is kind of a continuation of my previous post about treating PM. (I can’t post links yet ). But after reading more about UVC light treatments for PM, etc I thought I’d make a post more focused on that. A lot of what I’ve read about talks about how effective UVC light exposure is at killing...
  2. R

    Powdery mildew on leaves of flowering plants

    I have been dealing with this PM on my leaves for about a week. Plants are about 3 weeks into flower and producing very well. I doused them pretty well with straight 3% hydrogen peroxide about 5 days ago and have been spot treating them every couple days with the same 3% h2o2. Plants are in dwc...
  3. R

    White mold on roots - dwc - please help!

    Yesterday I noticed some fuzzy white mold on my roots in one of my dwc buckets. I immediately sprayed the effected roots directly with straight 3% h2o2. I also poured (maybe 1/2 cup) into the water in the bucket. I also added another air line with bubbler to the water because the original air...
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