What are Fly Predators

Fly Predators are nature's own enemy of all common manure and rotting organic matter breeding pest flies, including the common house fly, horn fly, biting stable fly and lesser house fly. In the natural environment Fly Predators serve as a major check of pest fly populations by destroying the next generation of flies in their immature pupa (cocoon) stage. Most locations likely have some of the species in Fly Predators already, but unless supplemented regularly, they cannot provide the nearly total fly suppression people prefer.

Fly Predators are tiny, completely biteless and stingless. They never become a pest themselves. After they've emerged, their single minded pursuit is to reproduce by finding pest fly pupa. Because of their small size and the fact they live their entire life cycle on or near fly larval development sites such as manure and decaying organic matter Fly Predators go virtually unnoticed.

Long Term Preventive Area Fly Control

“Fly Predators were a worthwhile investment. They worked well and cost less than the sprays we were using. We proved how well when the shipments stopped as scheduled, but we had a very late first frost. The flies came back quick without Fly Predators.” Bob Y.  Yorker Dairy Farms, Holland, MI

Any area where flies breed in manure or decaying organic matter can benefit from using Fly Predators. The key goal is to maintain a sufficient Fly Predator population to stop each succeeding generation of pest flies. Because flies reproduce nine times faster than Fly Predators do, adding supplemental Fly Predators every week to two weeks during warm months keeps the population balance necessary for good fly control.

You must release enough Fly Predators to control all the fly reproduction in the area. You treat the farm not the barn. For example, ordering Fly Predators for just your milking cows, and not the milk cows or heifers will not be sufficient as the flies that reproduce in those other animals' manure will easily reach your barn since a pest fly can travel 1/4 mile or further. For animals rotationally grazed, release Fly Predators weekly into the pastures the cows have been on for the past 3 days and those they will be in the next 4 days. With range cattle many will just treat the area nearest the home, barn and closest pens realizing that some inward migration of flies will occur, but accepting the improvement this alone offers.

“Fly Predators have done a good job for us. It’s nice to not have to use pesticides. We have a farm store so being fly free is critical. You can have the best milk in the world, but if customers get a fly in their car when they roll down the window, they’re gone.” David W.  Wright Dairy, Alexandria, AL

Proven Highly Effective

The species used in Fly Predators have been proven effective by both scientific tests and from decades of actual usage. Our satisfied customers include the country's largest equine facilities down to backyard horse owners as well as large and small dairies, poultry farms, zoos, feedlots, show and rodeo grounds, fairs, wastewater treatment facilities and many more. Any location where there are critters producing manure or other rotting organic matter Fly Predators can help keep it pleasantly fly free.

Our 34nd Years of Satisfied Customers

For over three decades Spalding Labs has supplied Fly Predators brand beneficial insects to livestock owners nationwide. Most customers renew, year after year, once they have tried Fly Predators for at least three months. The comments throughout this catalog are from on-site visits and a small sampling from last year's "Report Card" where we asked all customers to rate how their Fly Predators were working.