Yea, that looks like PM to me.

Try spraying a mixture of 10% milk to 90% water. Do this weekly.
khyberkitsune Reviewed by khyberkitsune on . powder mildew? help from smart growers? Hi guys, new here - I have some clones that I just received that have a bluish-gray staining on some of their leaves. is this powder mildew? or is it potentially some type of treatment that the cloner sprayed on there early on? any help with this would help - pics below Rating: 5