Powdery mildew ( mold )

I think there's Powdery Mildew on my Plants leaves & I'm in week 5/6 of Flowering everyday it looks like more & more leaves are being infected how can I save my babies / what should I do?????

ED ROSENTHALS ZERO TOLENRANCE OR SERENADE but it smells pretty bad. but works!

Thanx I really appreciate that