No friggin clue.
I hate bugs.
Shit, I seem to remember [fuzzily] some systemic neem concoction-"Doc's" I think- that you can add to the res. But no systemics in flower, period, so that's out. And sprays aren't recommended that late either.
So my advice is post a bunch of yellow sticky traps around to get you through to harvest, and then when you take everything down, really scrub out your system. Unless you're on a perpetual schedule, then I'd just go for the sticky traps until you get the buggies id'd.
Trap a few on sticky traps and post pics for us!