Keeping barns free of flies is essential for maintaining a healthy and comfortable environment for livestock. This guide presents effective fly control products designed specifically for barn settings, combining safety, ease of use, and proven performance. Below is a quick summary table of the selected fly control options to help you choose the best fit for your needs.
| Product | Brand | Type | Key Feature |
|---|---|---|---|
| Catchmaster Giant Fly Glue Trap 3-Pack | Catchmaster | Adhesive Fly Trap Roll | Long-lasting 30 feet adhesive tape, pre-scented |
| RESCUE! Outdoor Disposable Hanging Fly Trap – 8 Traps | RESCUE! | Disposable Hanging Trap | Attractant bait with water trap, easy disposal |
| TERRO T380 Outdoor Reusable Fly Magnet | Terro | Reusable Baited Trap | Poison-free, reusable with fly-attracting bait |
| Flowtron Bug Zapper 1 Acre Coverage | Flowtron | Electric Bug Zapper | Powerful UV light with mosquito attractant |
| Revenge Barn & Stable Fly Spray 32 oz Concentrate | Bonide | Spray Insecticide Concentrate | Long-lasting fly, flea, and tick control |
Catchmaster Giant Fly Glue Trap – Bulk Sticky Roll

The Catchmaster Giant Fly Glue Trap comes as a 3-pack of 30-foot adhesive fly-catching rolls. It is ready to use without additional bait as it is pre-scented with a formula designed to attract flying insects. This makes it ideal for barns where flies congregate.
The trap is safe, mess-free, and works effectively in both indoor and outdoor barn areas. The adhesive is specially formulated to last up to a year under normal conditions and is resistant to humidity, making it suitable for damp barn environments. You can cut the tape to fit smaller spaces, enhancing flexibility in placement.
Its large surface area makes it a cost-effective solution to protect barns from flying pests.
RESCUE! Outdoor Disposable Hanging Fly Trap – 8 Pack

This RESCUE! Outdoor Disposable Flying Trap offers an easy setup for barn owners needing to address fly infestations quickly. The trap lures flies with an irresistible attractant bait; flies enter through a small opening and drown in water inside the trap.
When the trap fills up, it can be discarded without any mess or cleaning required. The product is designed for outdoor use and should be hung at least 20 feet away from living spaces. Its disposable nature allows for hassle-free fly control around barn entrances or outdoor working areas.
This trap targets a wide range of common fly species, helping reduce their numbers significantly.
TERRO T380 Outdoor Reusable Fly Magnet Fly Trap

The TERRO T380 Fly Magnet is a reusable fly trap designed for outdoor barn use. It uses an effective bait and an eye-catching color with a diamond-shaped lid to attract house flies, barn flies, and bottle flies. Once flies enter, they cannot escape.
This trap is poison-free and simple to maintain by pouring in bait and water up to the fill line. Its reusable design reduces waste and makes it a cost-efficient option for continuous fly control. The mixture must be kept moist to keep flies submerged effectively.
Its durable construction is optimized for barn environments and provides consistent fly-trapping performance.
Flowtron Bug Zapper with 1 Acre Outdoor Coverage

The Flowtron Bug Zapper provides expansive fly and insect control for barns covering up to 1 acre. It features a powerful 40-watt ultraviolet light bulb combined with a 5600-volt instant kill grid. This zapper attracts flies, mosquitoes, moths, and other insects using multiple luring methods.
One unique aspect is the included octenol mosquito attractant cartridge, which mimics animal breath to lure more insects. The high-voltage transformer prevents short circuits and instantly kills pests on contact, keeping barn areas significantly less infested.
Setup is as simple as hanging the zapper in a shaded area, making it a reliable insect control device for farm environments.
Revenge Barn & Stable Fly Spray Concentrate

Bonide’s Revenge Barn & Stable Fly Spray is a concentrated insecticide that controls flies, fleas, ticks, spiders, and other pests in barns and stables. It is suitable for use on a variety of animals including horses, cattle, goats, sheep, swine, poultry, and dogs, making it highly versatile for barn conditions.
The formula offers long-lasting protection and can be applied both indoors and outdoors. This spray helps maintain a comfortable environment for livestock and reduces insect-transmitted diseases.
Proper application following label instructions ensures effective pest control throughout the barn and surrounding areas.
Buying Guide: Important Considerations for Barn Fly Control
Effectiveness Against Various Fly Species
Select a product that targets the common flies found in barns, including house flies, stable flies, and bottle flies. Some traps use attractant baits or scents specifically designed to lure these species.
Safety for Livestock and Humans
Choose fly control solutions that are non-toxic and safe to use around animals and people. Adhesive traps and electric zappers generally offer safe alternatives to chemical insecticides. For sprays, ensure the product is labeled for use on livestock and follows safety guidelines.
Usage Convenience and Maintenance
Consider traps that are easy to hang, refill, or dispose of according to your maintenance capability. Disposable traps require minimal cleaning, while reusable traps may need periodic cleaning and bait replacement.
Durability in Barn Environments
Barns can be dusty, humid, and exposed to weather. Look for fly control products that withstand moisture and dirt without losing effectiveness. Products designed for outdoor or barn use typically have more durable materials.
Scope of Coverage
Match the product’s coverage area to the size of your barn or affected spaces. Large adhesive rolls or electronic zappers covering acres are ideal for bigger barns, while smaller disposable traps may work best near doorways or feeding areas.
Cost and Longevity
Balance upfront cost with product lifespan. Some fly traps provide a large catching surface lasting months, while others may be disposable after single use. Reusable traps and concentrates often offer economical long-term control.
Environmental Impact
For farms committed to eco-friendly practices, select non-chemical options or those free of poisons and chemical residues. Electric zappers and adhesive traps eliminate flies without introducing toxic substances into the environment.