Beneficial wasps and flies are a powerful, natural solution for managing pest fly populations in outdoor livestock farms. These biocontrol agents target fly larvae and pupae before they become adults, significantly reducing fly numbers without the use of chemical sprays. Parasitic wasps, such as Muscidifurax species, lay their eggs inside developing fly pupae, preventing pest flies from emerging. Meanwhile, predatory flies like Hydrotaea species feed directly on fly larvae in manure and other decaying organic material.

Using beneficial insects helps maintain a healthier, more comfortable environment for livestock by minimizing fly-borne stress and disease. Because they are species-specific and self-sustaining when applied regularly during the warm season, these biological agents integrate easily into farm management systems, offering long-term, eco-friendly fly control that won’t harm animals, workers, or beneficial insects.

Monitoring

Monitoring flies in a barn environment is an important first step in understanding population levels and identifying problem areas before infestations get out of control. Yellow sticky cards and yellow roller tape are effective tools for this job. Flies are naturally attracted to the bright yellow color, and once they land on the adhesive surface, they become trapped. By placing sticky cards in key areas such as near manure piles, animal resting areas, and entrances, you can get a snapshot of fly pressure and track population trends over time. Replacing the cards weekly and recording counts gives valuable insight into how well your fly management program is working.

For larger areas or high-traffic zones, yellow roller tape provides continuous monitoring and control. Stretching the tape along barn walls or above walkways creates a large surface area to intercept flying adults. This is especially useful in barns where fly activity is intense or persistent throughout the season. While sticky cards and roller tape don't solve fly problems on their own, they are an essential part of integrated fly management—helping you decide when and where to take further action.

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Fly Control Products