White Patches (Mold?)

I'm getting white (lightly colored) patches on the fan leaves of my plants. At first I thought they were caused by water misting, but now I don't think so. I only spray water once in a while. I wouldn't think they would be tricones on the fan leaves. I'm thinking maybe mold?

What do you think O great Guru of the Green Plant?

Thanks

you got the powdery mildew....its very bad and can come back to haunt You when flowering...curing....google it there are plenty of cures but first You gotta amend your growing enviroment....good luck

Powdery Mildew!! It's been a while since I've seen you my old friend.

Your humidity is probably too high. You want to wipe it off all the leaves that have it; if you have to cut some off that's fine. Reduce humidity and look into a sulphur burner. Just don't be around when that sulpher is running and don't run it the last 2 weeks of flower. You only need to run it for a 1 (few hours a day) when the problem comes up.