moisture

Can you exhaust outside? Removing that air from the area is the only option beside running a dehumidifier. resistant or not, if you are consistently 70-75% expect to have recurring problems... even if they don't happen every grow. Blowing air around will only even it out.. that's good for preventing the RH from rising in the canopy, but it will not reduce overall RH. Another option - smaller canopy than normal. Less leaves = less moisture released. I am not suggestion you remove a ton of levs, but grow in a smaller area while not removing a ton of leaves. Leaves power everything, so removign them is a net negative. Taking off 5-10% is okay in an effort to reduce RH but taking off a ton is only going to hinder your outcomes. Leaves are also the manufacturing plant for numerous necessary molecules required for plant growth and ripening. They are the lungs, too. I'm sure you know CO2 is a limiting factor, so reducing co2 intake is a big negative. i've had issues with wpm in the past. there are no products on the market that are effective against it. Bud rot is dangerous, too. There's no fixing these problems once they get a foothold. They only spread and make your weed taste like total shit even if it "looks" clean.

Iv grown in that lots of times with very little issues. Keep an eye out when the buds fatten up and make sure you keep the air moving. Amino acid is what you wanted in Veg and flower as it stops the mildew spores from spreading if they land. It hardens the, can't remember the name, the cement between the cell walls so it doesn't spread.H&G Amino Treatment is what you want as its also got seaweed in amongst other things. They say foliar feeding microbes, compost tea is great at preventing mildew.Theres a dozen other household items that they claim works like baking soda,garlic even milk but not sure hoiw well they work.