I believe that you can find organic pyrethrin bombs- that chemical is derived from chrysanthemums. That's something to ask the guy at the hydro shop.
Pyrethrin has no effect on PM but SMC is a VERY good preventative product- it forms a physical barrier that keeps spores from finding a place to take hold.
Jsut think- there are plenty of things that exist in Nature that are both organic and harmful to humans, like poison ivy oil. I have NO experience with Azatrol but given the array of stuff that is already available, and I KNOW is safe, I'd choose the simple, safe fixes FIRST before bringing in the big guns.
Have you tried No-Pest strips? Dichlorvos isn't organic, and is known to be toxic to humans, but you hang the strip in the grow area instead of spraying the plants, and it outgasses a high enough level of the stuff to kill mites. A lot of growers swear by them. They have their place, but it's recommended to ventilate your grow area well before working in there if you run organophosphates of any sort as pesticides.