Review on Farnam SimpliFly Feed-Thru Fly Control for Horses: Effective Solution to Break and Prevent the Fly Life Cycle - 3.75 lbs by Jerome Pritchard

I have used several types of fly food, one for each year. I think it will take a few months for them to come into effect, so I gave them all a chance. Farnam's Simplify works better than others that cost three times as much. Trust me if you make the wrong choice you will get into trouble and it will be too late to stop them. I highly recommend this product, I was NOT paid to leave a review (LOL!). I use this in combination with the fly bags you hang up in the barn. I live in North Texas where it gets insanely hot. I don't have flies as it works for both horses and manure. Hate flies! To attempt. Personally, I feed him almost all year round, except in the coldest winter.)