HELP!! powdery mildew problem!

Hi,
I recently got some new baby, they turned out to be infected with powdery mildew! I saw some home remedies on line using baking soda, dish soap and water that is supposed to change the ph on the plants and make it unliveable for the mildew. Has anyone tried this just want to make sure it ok for MJ! or if anyone has any other ideas I'm open! Thanks

wow its been a while since i posted this and still no reply damn that sucks!!!!

Green Cure dude...OR 2ml of Dutch Master Zone to 15 ml of Penetrator also from Dutch Master then pour that into 32oz of RO water....spray when after lights go off...either one works!