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Looking for product or mix-it-yourself IPM recommendations for powdery mildew prevention during middle to late flower. I use neem oil for my veg leaves but that is not an option now that budlets have formed. Is there anything that 1) won't leave an unpleasant residue, and 2) actually works for...
Would it be beneficial to have RH up around 70/80% and then let it come down to say 30-40% for a day or 2 to simulate a hot summer day or leave the humidity at optimum levels for the whole veg cycle?
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