Personally, I have yet to try these products but a member, NCGA, suggested them to me for my PM problem. One is Sonota and the other is Oxidate. Both can used late into flowering and will kill it on the spot, supposedly. I am ordering a couple bottles of each and will testing them out this outdoor season. They're not systemic like the Banner Maxx or
Eagle 20, but they are supposed to work very well according to NC and they are not toxic chemicals like the systemic fungicides. I wish I could say if they work from my own experience, but I will see soon enough, I just wanted to throw these other options out there for you to think about. NCGA, seemed to really know his shit about the subject and might be someone to PM if you have more questions.