I didn't do that, but I can assure you my next grow will have it in the soil from the start.
Makes me wonder if I lucked out and somehow some BT of some sorts formed in the fpj. 🤷🏻♂️ IDK if that can happen or if I just got them too drunk to breed. Who knows. All I do know is new ones Haven't popped up and I don't see any larvae when I water in a couple of weeks now.
After harvest if I somehow luck out and eliminate the pests entirely I'll probably recycle this soil with amendments and I'll innoculate it to be safe. I'll isolate the soil for awhile after harvest first to be safe. If anything pops out I know it won't be worth my time. If it's pest free I'll work with it again. If I'm lucky I'll turn this(assuming I get it clean) into a supersoil one day. If people can turn plain dirt into supersoil with time and care I believe in myself there too.