Horse flys, fly flys, some kind of flies I have never seen before. You name it, we have it. Especially horse flies. They are killing me! Not to mention these calves. I have tried a variety of sprays for them and the barn. My dad is going to try some pour on that we use on the dairy cows. Does anyone know any other remedies or home made prevention we can try. It would be great if it could double for horses too