I have a fly problem due to my chickens and I have read on the net about killing them with fly bate. I have 2 jugs on the chicken pen one with sweet peaches and one with raw meat. I put some fly crumbles in each jug as well. I also have one jug of peaches and fly crumbs hanging on the porch.
I first hung the hamburger and fly crumbs jar on the porch until I realized the point of the raw meat was for it to rot and the smell would draw the flies. I realized the smell would be in the house so I move that raw meat one out on the chicken pen and hung a peach one on the porch.