I feel you man, I never had the problem before but I can picture what I would be doing and how mad I would be if it were happening to me. If the flies haven'r hurt the plant yet, then maybe they aren't going to do anything to the plants. If it were spider mites, your plants would have been dead by now, so be thankful for that. Keep in mean that you only have to battle this bugs for only at most 50 days for floweing . Good Luck man, Team Top44 will live on...