My Leafs are getting white faded

[Big Stoner]

my plants where getting spider mites but i took them off check under the leafs and all that but my plant is getting on the leafs white like its getting faded can you guys please help? heres a pic
274192

[green420]

I think this is happening probably mixing heavy nutes.....

[porone]

Its powdery mildew.Get rid of it before flowering is best.

http://boards.cannabis.com/plant-problems/192325-can-anyone-tell-me-what-white-patches.html