10 Best Horse Fly Sprays 2025 in the United States

The Absorbine UltraShield EX 128oz Insecticide is a potent option for those needing a robust solution to repel and kill a wide array of pests. It boasts a strong formula that can tackle over 70 types of insects, including flies, mosquitoes, ticks, and fleas, making it versatile for use on horses, dogs, and even around barns and premises. The product's UltraBond Technology ensures it remains effective for up to 17 days, which is notably long-lasting compared to many other products on the market.

It's ready to use right out of the bottle, requiring no mixing, which simplifies the application process. Additionally, the water-based formula is a plus for those looking for easy cleanup and less sticky residue. Its weatherproof properties mean it will remain effective even in less-than-ideal conditions. The inclusion of sunscreens and coat conditioners is a thoughtful touch, providing additional care for your animals' coats while protecting them from bugs and UV rays.

However, potential users should be aware that, while the product is powerful, it might not be the best option for very sensitive areas or animals with particularly sensitive skin. For those looking for a comprehensive and long-lasting insecticide, Absorbine UltraShield EX offers a wealth of benefits. It is particularly well-suited for horse owners who need a reliable, weatherproof solution with added coat care benefits.

The Pyranha 001GWIPEG Wipe N'Spray Fly Protection Spray is a versatile and effective solution for keeping flies, mosquitoes, gnats, fleas, and ticks away from horses. The 1-gallon bottle offers a ready-to-use formula, making it convenient for immediate application. One of its notable strengths is the inclusion of citronella, which provides a pleasant scent compared to other sprays with harsh chemical odors.

The product’s strong effectiveness is well-reviewed by users, earning a 4.7 out of 5 stars from nearly 1,900 ratings, indicating high satisfaction. Additionally, it is safe for use on all age ranges and is free from common allergens like celery, ensuring the safety of your horse. The application method is straightforward, but there’s no indication if it’s suitable for sensitive areas or if additional care is needed in such cases.

Weighing 7.1 pounds, the bottle is relatively heavy, which could be cumbersome during application. The Pyranha Wipe N'Spray is a reliable choice for most horse owners.

The Farnam Repel-X Ready-To-Use Fly Spray is a versatile insect repellent that targets horses and dogs. It comes in a convenient 32-ounce bottle with a trigger sprayer, making it easy to apply. This product stands out because it doesn't require any mixing or diluting, saving you time and effort. The active ingredient is permethrin, which is effective in repelling and killing a variety of pests including flies, mosquitoes, gnats, fleas, and ticks.

The water-based formula is practical for use around barns, stalls, and even on blankets and fabrics. It's also budget-friendly, with concentrated refills available in various sizes. However, it should be noted that it must be used with caution around sensitive areas like the eyes and mucous membranes. The scent is described as pleasant, which can be a plus for users sensitive to strong chemical smells. Another plus is its suitability for animals of all life stages and large dogs.

One downside is that it needs to be reapplied daily or as needed for continued protection, which could be inconvenient for some users. Additionally, the product’s effectiveness might be reduced if the animal gets wet or sweats heavily, as it is water-based and not explicitly described as water-resistant. The safety instructions should be followed carefully to ensure no harm comes to younger foals (under 3 months) or sensitive areas. This fly spray is a solid choice for those needing a ready-to-use, multi-purpose, and economical solution for fly control on their animals and premises.