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What should i do? humidity outside is 89%, i can bring temps up in the dry spot but everywhere i look says " high temps + high rh = mold" but the math is right, 50F with a dew point of 47 is an rh of 89% 70F with...

Soil- FFOF with added pearlite, worm castings(1cup per 4 gallon pot) and bone meal (2 tbsp. per 4 gallon pot) Nutrients- Foxfarms GrowBig, Bigbloom, Down to Earth bat guano(8-3-1), Down to Earth bone meal (3-15-0) Epsom salts (Mg) 9.8% (S) 12% So everything was looking good until I...

Has anyone used pestkil rhododendron & rosebud dust to treat soil for bugs? says it kills aphid,thrips,whitefly and other pests. just wondering if its safe to use or not i havent seen any posts on it so i thought i would ask, any help would be much appreciated.

I came across an article about mutating seeds in some solution to get poly or tri genetics in the plant. Im just starting up a small CFL grow room and i have a ton of bagseed layin around that i dont mind possibly messing up. im very interested in trying this but i couldnt find much info on HOW...

I'm having problems determining the sex of my two plants. they are about 1 month old and due to a more northern latitude they are both stunted, but coming along nicely i think. This is my first grow and im learning as i go. Also i have about a 3 foot height restriction so i topped them both...