powerdery mildew formula gone wrong.

I had some powdery mildew on my plants and used the baking soda formula. Next morning my plants look like they are dieing. I think it got real humid that night too. Leavess drooping mostly yellow all over. Anyone know the best way to handle this. will post pix later.

sounds like they are locked out and need water...flush them....i have PM in my grow too and the Baking soda has never hurt them...i also use a peroxide mix ever three treatments to wash the leaves off, the opposite of the spectrum on ph irritates that PM.....