Finding the best fly supplement for horses helps keep your animals comfortable and healthy. Effective fly control reduces stress and prevents fly-borne diseases.
Flies bother horses and can cause skin irritation and infections. Using a daily fly supplement breaks the fly life cycle by targeting larvae in manure. Products like Farnam SimpliFly and Formula 707 MultiFly offer safe, palatable pellets that work inside the horse’s system.
These supplements reduce fly populations over time without harmful chemicals. For extra protection, sprays like Farnam Repel-X and Farnam Endure provide a barrier against adult flies and other pests. Combining feed-through supplements with topical sprays gives horses the best defense. Choosing the right fly control method helps ensure your horse stays calm, healthy, and comfortable all season long.
Farnam Simplifly Feed Through Fly Control For Horses

The Farnam SimpliFly Feed Through Fly Control for Horses is ideal for horse owners and stable managers seeking an effective, safe, and convenient solution to control stable flies. This product is perfect for those who want to maintain a comfortable and healthy environment for their horses by reducing the fly population in manure without resorting to harsh chemicals or labor-intensive methods.
Pros:
- EPA-approved pellets ensure safe and effective fly control
- Long-lasting 60 day supply reduces frequent reapplication
- Easy-to-administer palatable daily supplement for horses
- Targets stable flies by disrupting their lifecycle in manure
- Helps improve horse comfort by reducing fly irritation
Cons:
- Only effective when administered consistently as directed
- May not control all types of flies or insects on the property
- Requires management of manure for best results
The Farnam SimpliFly Feed Through Fly Control works by delivering EPA-approved pellets that pass through the horse’s digestive system and into the manure, where they prevent the development of stable fly larvae. This innovative approach targets the fly problem at its source, reducing the overall fly population in the stable environment without the need for sprays or traps. The brown pellets are designed to be highly palatable, ensuring horses readily consume the supplement as part of their daily feed.
With its 3.75 lbs container providing a 60-day supply, this product offers a convenient and cost-effective solution for long-term fly control. The supplement’s ease of use and safety make it suitable for a wide range of horses, supporting stable cleanliness and helping to protect horses from the discomfort and health issues caused by stable flies. Overall, Farnam SimpliFly offers horse owners an efficient and reliable method to maintain a fly-reduced environment and promote equine well-being.
Formula 707 Multifly Feed-thru Fly Control Pellets For Horses

The Formula 707 MultiFly Feed-Thru Fly Control Pellets for Horses are ideal for horse owners seeking an effective, safe, and palatable solution to reduce the fly population around their animals. If you want to protect your horses from the discomfort and health risks caused by flies, this product is designed specifically for you. It is especially suited for those who prioritize animal safety and ease of administration in their fly control methods.
Pros:
- Effective reduction of fly population with continuous use
- Palatable pellets that horses readily consume
- Safe for horses, minimizing health risks
- Convenient 10 lb bag provides 182 servings
- Produced by a trusted brand, Formula 707, ensuring quality
Cons:
- Requires consistent daily administration for best results
- May not eliminate all types of flies immediately
The Formula 707 MultiFly Feed-Thru Fly Control Pellets work by targeting the fly larvae in the horse’s environment through the horse’s manure. This innovative feed-thru method interrupts the fly life cycle, leading to a significant decrease in the fly population around your horses. The pellets are designed to be palatable, ensuring that horses accept them without fuss, which is crucial for maintaining consistent treatment and effectiveness.
Manufactured by the reputable John Ewing Company, these pellets come in a 10-pound bag, providing up to 182 servings, which makes it a cost-effective option for long-term fly control. The ease of use combined with the product’s safety profile makes it a smart choice for horse owners looking to improve their horses’ comfort while reducing reliance on sprays or topical fly repellents.
Formula 707 Multifly Feed-thru Fly Control Pellets For Horses

The Formula 707 MultiFly Feed-Thru Fly Control Pellets for Horses are ideal for horse owners and caretakers looking to effectively reduce the fly population around their animals. If you want a safe, palatable, and easy-to-administer solution to fly control that improves the comfort and health of your horses, this product is an excellent choice. It is especially suited for those who prioritize both efficacy and the well-being of their horses.
Pros:
- Palatable formula ensures horses readily consume the pellets.
- Safe for regular use, minimizing risk to horse health.
- Effectively reduces fly populations, improving horse comfort.
- Convenient 5 lb bag providing approximately 91 servings.
- Produced by the trusted John Ewing Company under the Formula 707 brand.
Cons:
- Requires consistent feeding to maintain fly control benefits.
- May not eliminate all fly species completely on its own.
The Formula 707 MultiFly Feed-Thru Fly Control Pellets work by targeting the fly larvae within manure, interrupting the fly lifecycle and reducing the overall fly population. This feature means that rather than just repelling adult flies, the pellets provide a comprehensive solution by preventing new flies from developing. The palatable nature of the pellets ensures that horses accept the supplement without fuss, making administration simple for owners.
Additionally, the product’s safety profile is a major benefit for users concerned about their horses’ health. Manufactured by the reputable John Ewing Company, these pellets offer peace of mind alongside effectiveness. The generous serving size in a 5 lb bag allows for long-term use, helping maintain a fly-reduced environment which leads to healthier, less stressed horses and a more pleasant stable experience overall.
Farnam Simplifly Feed Through Fly Control For Horses

The Farnam SimpliFly Feed Through Fly Control for Horses is ideal for horse owners looking for an effective, long-lasting solution to combat stable flies and manure-breeding pests. This product is perfect for those who want to maintain a comfortable and healthy environment for their horses while minimizing the use of harsh chemicals. If you are seeking an EPA-approved, easy-to-use, and palatable fly control option, this 10 lbs, 160-day supply is designed with you in mind.
Pros:
- EPA Approved for safety and effectiveness
- Long-lasting 160 day supply in a single 10 lbs container
- Palatable pellets that horses readily consume
- Prevents both stable flies and manure breeding flies
- Simple feed-through application ensures hassle-free use
Cons:
- Requires consistent feeding to maintain effectiveness
- May not be suitable for horses with specific dietary restrictions
The Farnam SimpliFly Feed Through works by passing through the horse’s digestive system and disrupting the life cycle of flies, particularly stable flies that breed in manure. Its palatable pellets ensure that horses willingly ingest the feed, making administration straightforward and stress-free. The product’s design targets fly larvae before they mature, effectively reducing the population of these pests in and around stables.
This fly control solution offers significant benefits by improving the comfort and health of horses, as stable flies can cause irritation, stress, and even infections. By preventing the breeding of flies in manure, it also helps maintain cleaner stable environments. The 160-day supply means fewer refills and consistent protection over months, making it a convenient and reliable choice for horse owners committed to effective fly management.
Farnam Repel-x Insecticide & Repellent Water-based Fly Spray

The Farnam Repel-X Insecticide & Repellent Water-based Fly Spray is ideal for pet owners and horse enthusiasts who are looking for an effective, easy-to-use solution to keep flies and insects away from their animals and premises. If you own horses, dogs, or maintain stables and outdoor areas where insects are a nuisance, this product offers a reliable defense to ensure comfort and protection for your animals and environment.
Pros:
- Effective insecticide and repellent that targets flies and other pests
- Safe for use on horses, dogs, and surrounding premises
- Water-based formula reduces the risk of residue buildup and irritation
- Comes in a convenient 32-ounce spray bottle for easy application
- Produced by a reputable brand, Farnam, ensuring quality and reliability
Cons:
- May require frequent reapplication in heavily infested areas
- Not suitable for use on animals with sensitive skin without prior testing
- The black color of the bottle may make it harder to see the spray level
The Farnam Repel-X Fly Spray features a water-based formula that is both effective and gentle, designed to repel and kill flies and insects quickly. This makes it a practical choice for protecting your horses and dogs without harsh chemicals that could cause discomfort or harm. Its easy-to-use spray bottle allows for targeted application, ensuring that you can cover both animals and their surroundings efficiently. The water-based nature also means it dries quickly, leaving little to no residue on the coat, which benefits both the animals and their handlers.
Additionally, this insecticide is manufactured by Central Garden & Pet, a trusted name in pet care products, which adds confidence in its quality and effectiveness. The product’s size and dimensions make it convenient for regular use in stables, kennels, or any outdoor area where pests are a problem. Overall, the Farnam Repel-X Insecticide & Repellent Fly Spray balances powerful pest control with safety and ease of application, making it an excellent addition to your animal care routine.
Farnam Endure Sweat-resistant Fly Spray For Horses

Ideal for horse owners and equestrians seeking a reliable solution to protect their animals from irritating and harmful pests, the Farnam Endure Sweat-Resistant Fly Spray for Horses is perfect for those who want long-lasting defense against flies, gnats, mosquitoes, ticks, and lice. This product is especially beneficial for individuals with active horses that spend significant time outdoors in various weather conditions.
Pros:
- Long-lasting protection that lasts up to 14 days
- Sweat-resistant formula ideal for active horses
- Effective against a wide range of pests including flies, gnats, mosquitoes, ticks, and lice
- Convenient 32 oz. size for multiple applications
- Easy to apply with a spray bottle design
Cons:
- May require reapplication in extremely wet conditions despite sweat resistance
- Scent might be strong for some users
- Not suitable for use on animals other than horses
The Farnam Endure Sweat-Resistant Fly Spray combines an effective pest control formula with a unique sweat-resistant capability, ensuring that protection remains even when horses are sweating during exercise or hot weather. This allows horse owners to maintain consistent defense against pests without the hassle of frequent reapplication. The spray targets a comprehensive range of insects, which helps prevent not only discomfort but also potential diseases carried by these pests.
Designed with convenience in mind, the 32 oz. bottle provides ample quantity for repeated use and easy application. Its compact dimensions and lightweight design make it simple to handle during grooming sessions. The blue color of the packaging also makes it easy to identify among other equine care products. Overall, the Farnam Endure Fly Spray offers a trusted, long-lasting solution that helps keep horses comfortable and protected outdoors.
Frequently Asked Questions
What Is The Best Fly Supplement For Horses?
The best fly supplement for horses includes Farnam SimpliFly and Formula 707 MultiFly pellets. These EPA-approved feed-through supplements reduce fly populations safely and effectively by targeting stable flies in manure.
How Do Feed-through Fly Control Pellets Work?
Feed-through fly control pellets work by disrupting fly larvae development in manure. Horses ingest the pellets, which pass through and prevent stable flies from breeding, reducing fly populations around stables.
Are Farnam Simplifly Pellets Safe For Horses?
Yes, Farnam SimpliFly pellets are safe and palatable for horses. They are EPA-approved and designed for daily use to control fly populations without harming your horse’s health.
How Long Does Farnam Endure Fly Spray Protect Horses?
Farnam Endure fly spray protects horses for up to 14 days. It is sweat-resistant and shields horses from flies, gnats, mosquitoes, ticks, and lice effectively.
Can Farnam Repel-x Spray Be Used On Dogs?
Yes, Farnam Repel-X is safe for use on horses, dogs, and premises. It provides water-based insecticide and repellent protection against flies and other pests.
How Long Does A 10 Lb Bag Of Formula 707 Multifly Last?
A 10 lb bag of Formula 707 MultiFly provides approximately 182 servings. This quantity supports long-term fly population reduction for multiple horses over an extended period.
Conclusion
Choosing the best fly supplement for horses helps keep your animals comfortable and healthy. Products like Farnam SimpliFly and Formula 707 MultiFly are effective in reducing fly populations. These supplements work by targeting flies at their breeding sites in manure.
Using feed-through pellets is a safe and easy way to control flies on your farm. For added protection, sprays like Farnam Repel-X and Farnam Endure provide a strong barrier against biting insects. Combining feed-through supplements with topical sprays offers the best defense.
This approach reduces irritation and the risk of fly-borne diseases. Regular use during fly season keeps your horses calm and focused. Remember, consistent care and proper product choice make a big difference. Protect your horses with trusted fly control solutions.
A happy horse means a happier owner.
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