it could spread with that fan, mold/mildew will spread spores, the spores will grow anywhere simulating the right conditions, and you will have a problem, get an organic fungicide, check the back to see if it can be used in flower, and check if it is suitable for use on food crops, if it isnt, dont use it...

if not, spray the bad leaves with water, and rub as much of it as you can off..

good luck...
Abattoir Dream Reviewed by Abattoir Dream on . need some help 2 out of the 10 plants i got flowering have some type of white to gray powdery substace on the water leaves.is this mold or just a bye product from the plant. or someting else. any help would be great. thanks Rating: 5