Barn Fly Misting

Fly Control For Horse Barns and Stables
House and stable flies are common pests around barns, stables, and corrals. Persistent house flies are both annoying and carriers of human and animal pathogens. Stable flies, on the other hand, give painful bites making activities unpleasant for humans and making horses nervous and difficult to manage.

If you need to limit fly populations in a barn an automatic fly-misting system will help control a variety of insects. Misters provide a hands-off way to control flies, mosquitoes and other insects year around. Our easy to program analog clock allows up to 48 independent spray cycles and can be easily adjusted according to season or how your barn is used.



Here is a simplified sketch of a small ten nozzle system:


In the above example, nozzles are represented by a diamond shape. Standard placement of nozzles is one over each stall and one in front of each stall door. It’s good practice to set up stalls so that the insecticide is not misting over the hay rack, water bucket or feed trough. The system, represented here by the solid black circle, is placed in the tack room. Tack or Feed rooms are good places for the system as it provides easy access for refilling and occasional maintenance. It is recommended to avoid adding nozzles to Tack and Feed rooms due to the possibility of insecticide wetting feed or staining saddles. When designing a nozzle circuit, create a closed loop whenever possible. The red circle in the illustration represents a “T” union allowing a bank of nozzles down the center aisle, closing the loop is an “L” fitting, represented by the orange circle, at the end of the barn. Closed loops help the nozzle circuit maintain pressure better than a series of “home run” branches.

Shed Row Example:

Like the previous example, nozzles are represented by a diamond shape, the system by a solid black circle. However, this circuit only uses a “T” union to complete the circuit.



  • We recommend that you buy a protective cover for your system. Covers keep dust and other particles from getting into the drum and the control box. Foreign materials will clog the intake filter, affect flow rate to the nozzles, damage analog clocks and require costly maintenance. Keeping the control box closed and the system covered will greatly increase the life span of your system.
  • Winterizing is also important. The fluid in the pump and nozzles can congeal or even freeze causing irreversible damage. When the weather gets cold, or the system will not be in use for an extended period, clean and drain the nozzle circuit and pump. Inspect your nozzles frequently and replace them as necessary.

Our most popular system for barn applications is the AMS-S1A, The AMS-S1A is a low cost alternative to the AMS-A or AMS-D that is an ideal turnkey solution for barn applications.

Automatic Misting

The AMS-S1 is a Low Cost System including the following:

  • 24Hr Battery backed up analog program clock
  • 1-180 second adjustable misting timer
  • Mist now push-button to initiate additional spray cycle
  • Float switch with automatic shutoff when empty
  • 1/2HP motor
  • 100 gallon/ hr, 250 psi pump can handle up to 70 nozzles
  • 0-300 psi pressure gauge
  • Needle valve to adjust pressure
  • 55 gallon UV protected poly drum

We also offer a Barn Package that includes the AMS-S1M plus 10 full sized nozzles and fittings, tubbing, clips and a cover: Click Here To See Barn Package