10 Best Equine Fly Sprays 2026 in the United States

The Absorbine UltraShield EX Combo is a strong choice for horse owners needing effective insect control. It contains powerful active ingredients like pyrethrins, piperonyl butoxide, and permethrin, which target a wide range of pests including flies, mosquitoes, ticks, and lice. One big plus is its long-lasting protection—up to 17 days—thanks to UltraBond Technology, making it especially useful in tough weather conditions. The spray comes ready to use, which means no mixing is required, saving you time and hassle.

It’s versatile, safe for use not only on horses but also on dogs and around barns or premises. The citronella scent is pleasant and naturally helps repel bugs, though some animals might be sensitive to scents. This formula also offers sunscreen and coat conditioning benefits, which is a nice bonus for your horse’s skin and coat health. The product is water-resistant, so it holds up well even if your horse sweats or gets wet.

While it’s generally safe for use on horses older than 12 weeks, caution should be used when applying near sensitive areas, as with any insecticide. Some users might find the large volume a bit bulky, but you get a sprayer plus refill which is convenient for regular use. Given its strong insect protection, weatherproof qualities, and added skin benefits, this spray is an excellent option for anyone looking for reliable, multifaceted fly control on their horses.

Absorbine UltraShield EX is a popular fly spray designed mainly for horses but also safe to use on dogs and around barns. Its active ingredient is pyrethrins, which effectively kills and repels over 70 types of insects including flies, mosquitoes, ticks, and lice. One of its strong points is its long-lasting protection—thanks to UltraBond Technology, it can keep bugs away for up to 17 days, even in tough weather conditions, making it very practical if you don’t want to apply spray frequently. The product comes ready to use in a large 128-ounce bottle, which is convenient since you don’t need to mix anything. It’s water-based, so it won’t leave a sticky residue and is gentle enough for sensitive areas on animals. Another plus is that it’s unscented, which is great if you or your animals are sensitive to strong smells.

Additionally, it includes sunscreen and coat conditioners, helping protect your horse’s skin from sun damage and keeping their coat healthy. The spray is generally well-liked but relies on pyrethrins, which some people prefer to avoid if they want a chemical-free option. Despite its broad insect protection, it’s primarily targeted for use on horses and dogs, so it might not be the best choice if you’re looking for a spray for other pets or animals.

If you want a reliable, easy-to-use, and long-lasting insect repellent that also cares for your horse’s skin and coat, Absorbine UltraShield EX is a strong candidate, especially for those dealing with heavy insect problems and outdoor exposure.

The Absorbine UltraShield EX 32oz Sprayer is a high-performance equine fly spray that stands out due to its potent formula. It effectively targets over 70 different pests, including common nuisances like flies, mosquitoes, ticks, and fleas, making it a versatile choice for not just horses but also dogs and even premises like barns. This ready-to-use, water-based product is convenient as it requires no mixing, and its application is straightforward with a sprayer bottle.

One of its key strengths is its long-lasting protection; thanks to its UltraBond Technology, the spray remains effective for up to 17 days, which is beneficial for those seeking a low-maintenance solution. It also includes sunscreens and coat conditioners, providing added benefits beyond pest control. Additionally, the product is made in the USA, which might appeal to users who prefer domestically manufactured goods.

The Absorbine UltraShield EX is well-suited for those needing a robust and long-lasting fly spray for horses and other pets. It caters to users looking for a highly effective, easy-to-use solution that goes beyond just pest control, offering protection from the sun as well.