Saturday, May 1, 2010

Feed Through Fly Control

If you are into eliminating flies from your barn, now is the time to start adding feed through fly control to your horse’s diet. We have been recommending the use of Solitude IGR, and have excellent results with this product. This product is very safe. Unlike organophosphates, Solitude IGR has no adverse effect on horses, people or other mammals. It will not contaminate water supplies or pastures and is safe for horses of all ages, including breeding stallions and pregnant mares. It is a daily top-dressing added directly to their feed, every day. In order to achieve best results, it is necessary to begin feeding it two weeks before flies would normally appear. It is also important to treat ALL of the horses in the barn. It will not work well if only a few horses are treated.

Solitude IGR is available in 2, 6 and 20 pound containers. One pound will treat one horse for one month. Given the price of fly spray, Solitude IGR is an extremely cost effective means of controlling flies. We can ship the 20 pound containers directly to you at no extra charge. The WMVS price for this product is as follows:
• $34.12 for 2 lbs.
• $94.38 for 6 lbs.
• $262.45 for 20 lbs.
We offer free shipping, directly to your home or barn, on the 20 lb. containers.

There is much more information available at


  1. Hi, wondering if use of this product will eliminate the need for sprays. Does the horse give off some sort of scent because he's eating this so flies won't bite him?

  2. Awesome Dr. Nelson - will have to give it a try! We also feed Bug Check - it really helps with flys away from home. My horse is a sweat hog that always used to draw the flys - since we have been feeding this, the horse flys have been much much better!

  3. The product works by inhibiting the development of flies. It does not emit any odor. This product does not repel flies, it works by greatly reducing the number of flies in the enviroment. Also, it only works against flies--not mosquitoes.
    The following is copied from Pfizers web site:
    As the horse is fed cyromazine, it passes through the horse and is excreted in the manure.
    House flies and stable flies lay their eggs in the manure and the eggs subsequently hatch into the larval or maggot stage. (Cyromazine has no effect on the chitin of the adult fly.)
    As the maturing maggots feed on the manure treated with cyromazine, they become unable to successfully develop into adult flies because cyromazine inhibits the proper formation of chitin.
    The immature stage of the fly dies.

  4. Thanks. Does it harm fly predator wasps?

  5. I do not think it will harm fly predator wasps, but you might want to double check with the people you get the predator was larava from. Fly predators are another good option for reducing fly numbers. It might be a little overkill to use both Solitude and Predators.