There are many flytraps available to use on the farm to help control flies on cattle. With many of these traps, we do not really know how well they work at controlling certain species of flies. We tested five different flytraps on two dairy farms. These were the Horse Pal Biting Fly Trap, H-Trap, Olson Biting Fly Trap, Knight Stick Fly Trap and Spider Web Glue Fly Trap. We compared the Horse Pal and the H-Trap because of their similar design, and because both claim to catch horse and deer biting flies. We also compared the Olson Biting Fly Trap and Knight Stick Fly Trap because they both catch stable flies. We also tested the Spider Web Glue Fly Trap in the barns to help reduce house fly populations.