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  1. J

    please help! powder mildew ...

    This is a follow up. We have totally solved the PM problem but not sure exactly what worked. 1) We had some begonias which also had PM. Online sources will tell you that begonia PM only affects begonias not cannabis and this is true, but don't let this information mis-guide you, if you check a...
  2. J

    please help! powder mildew ...

    We've got PM bad in our flower room and the traditional goto here is to defoliate but after a contaminated harvest we have tried lowering the humidity and this just slowed it down, but not by much. Yesterday we brought the temperature up to 95+ for 12 hours and the PM is still there, it might be...
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