Please tell me your results, if you had any issues with your flock, etc. I am at the end of my rope with our fly problem. You name it, I likely have tried it and we are losing the battle. Chemicals are my last resort, I hate to use them, but there is nothing left to try. So Sevin-5. . .Did it work? Did it hurt your chickens? Does it effect the eggs at all? (chicken's eggs that is) Thanks.