Hi All...Got a queston... My foaling barn is just loaded with flies!! No matter how clean I keep it, they just KEEP COMING BACK!! The feed store told me to use Seven Dust mixed in with their shavings? That didn't sound right to me. I am afraid to do that because I have a week old foal (Donte) in this barn, and a maiden mare that is at 324 days. I have used the Seven Dust in my full size horse gelding/stallion barn, and it does seems to help. Donte is going crazy with all the flies..What do you use to control these pesty pains in the horses you know what!