The cornerstone of your integrated fly control program.

BioSwat’s fly parasites are a time honored solution for Stable, House and Horn fly control.

  • Fly parasites since 1974
  • 40 plus years of experience
  • Cattle, dairy and poultry, nationwide
Cattle in feedlot pens in front of a white barn on a sunny day

How fly parasites work to control pest flies

Fly parasites, of the Pteromalidae family are indigenous to North America. They are a species-specific parasitoid, laying their eggs exclusing in fly pupa.

  1. Released at breeding sites

    BioSwat's efficacious blend includes Spalangia cameroni, Muscidifurax zaraptor, and Muscidifurax raptorellus.

  2. She searches for fly pupa

    When released on or near fly breeding sites, the female searches through the habitat seeking out fly pupa.

  3. She lays her eggs inside

    Once located, she drums a hole in the pupal case and deposits eggs insides the fly pupa leading to destruction of the immobilized fly.

  4. The fly never becomes a pest

    These gnat-sized insects live their entire life cycle on or near the surface of manure and other decaying organic matter attacking flies in their pupal stage long before they become adult pest flies that negatively impact livestock performance.

A consultancy to get your program started and to keep it on track

BioSwat’s proven track record is built on 40 plus years of experience in establishing successful integrated fly control programs for the livestock industry.

Programs for your operation

Two riders moving cattle through dust in low evening light

Optimized Control for Cattle Feeders

Time honored feedlot fly control

Since 1974 BioSwat has worked closely with cattle feeders throughout Colorado, Nebraska, Kansas, Oklahoma and Texas to design and implement successful integrated fly control programs. Today, our reach is nationwide serving large and small cattle feedes alike. BioSwat's strength lies in its efficacious fly parasite blend, consistently high product yield and depth of experience.

We review manure management and habitat mitigation, feed yard housekeeping and pen conditions, stored feed practices and chemical application procedures. Our goal is to optimize the use of biological fly control and limit chemical sprays and baits to reduce overall fly control costs to ensure season-long fly control.

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Application rates for feedlots

Feedlot SizeFly parasites/weekSeason Total
1,000 – 2,00050,000 (2 bags)1,100,000
2,000 – 5,00075,000 (3 bags)1,650,000
5,000 – 8,000100,000 (4 bags)2,200,000
10,000 – 15,000225,000 (7 bags)3,850,000
20,000225,000 (9 bags)4,950,000
30,000250,000 (10 bags)5,500,000
40,000 – 50,000300,000 (12 bags)6,600,000
Holstein dairy cows with yellow ear tags in golden light

Organic and Conventional Dairy Programs

Optimized programs for the conventional & organic dairy

No where is fly control be more critical than in the close confines of a dairy where productivity is closely monitored. With numerous and unique fly breeding habitats; such as calf hutches, manure storage sites, gravity fed manure and composting systems, BioSwat's IPM programs are designed to address these primary fly breeding sites with the goal of optimizing fly control throughout the dairy. …

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A crowd of brown hens looking toward the camera

Season-long Solutions for Poultry

Year-around fly control for hen houses

The poultry house provides the perfect battle ground for fly parasites. With uniform temperatures and consistent environmental conditions, fly parasites thrive in the poultry pack. Dripping waterers keep poultry waste from drying and lead to explosive fly breeding habits. …

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A solution-based tradition that serves the animal health industry

BioSwat pioneered the application of fly parasites in 1974. We’ve worked hand-in-hand with major cattle feeders, dairymen and poultry producers across the country ever since. BioSwat’s fly parasites are a time honored solution for Stable, House and Horn fly control. An integrated fly control program built around biological control reduces the need for constant chemical applications. Coupled with sound manure management and general housekeeping, fly parasites will yield year-after-year improvement in your fly control and offer improved ROI.

About BioSwat
Two BioSwat fly parasite pouches

We look forward to helping develop your integrated fly control program

Please give us a call for a consultation to address your facilities needs.

We’ll reply by phone or email, whichever you give us.

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