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rust fungus
beenSlayinstarted grow question 9 months ago
Can a hydrogen peroxide foliar spray take care of rust fungus?
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Other. Mold
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Robertsanswered grow question 9 months ago
If you are sure it's a fungus there is ways to treat it. First get your humidity below 70 always. Closer to 40 in flowering. Improve air circulation if indoors. If you're not in flowering you can neem oil treat the plant. It is recorded that it is effective against rust fungus. If of course your plant isn't just short of calcium. This is the first rust fungus question I have seen in 4 years. So I would do the standard checks of ph of soil and run off before treating. When I neem oil treat I make the solution for it then I soak the plant. I wait a half hour then rinse it off. Don't do this in light hours.
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