Actinovate for powdery mildew...burnt pistils

Just a warning, i applied actinovate to my plants to get rid of mild powdery mildew, wanted to be proactive and wet all the lower areas so it didn't get out of control too quickly. Anyway, I did this in very early flowering and everywhere I sprayed I have burnt pistils now, luckily I only sprayed the lower areas. I applied it at 1 tsp/gal as the label suggested right before lights out. May want to do a test area if you use this product. btw...PM back one week later...works about as well as serenade which is not at all. will probably be reverting back to neem and scissors. Anyone else had this happen to them? I google everything extensively before applying and I hadn't seen any warnings about this.