Lemme add this.... If ya'll don't mind? I experienced this as well. The rust spots are on the top of the leaves,correct? I was foliar feeding with KLN and forgot I had mixed it to double it's strength.. I sprayed the plants,which were in MG soil.. No spots at all before I sprayed them...

Have you be foliar feeding?

Ga.
GaGrown Reviewed by GaGrown on . does anyone know what this could be?? hey all, second grow but still new at this. didn't have this problem with the 1st grow. we have these brown rough patches and some spots on some of our leaves. these plants are about 8-9 weeks old. second picture from bagseed and got lucky to get a female. third is a clone of bagseed. grown in miracle grow potting soil. they've been flowering for about 2 weeks now and the patches seem to be getting worse. my fiance heard it could be rust fungus but i could not find any pics of spots Rating: 5