Best Horse Fly Repellents of 2025

"I had an issue with biting flies while hiking, and after using this spray, not a single bug bothered my dogs. I simply put it in a smaller bottle and spray them down at the trailhead. Works like a charm!"

"Using this product at my horse rescue has been a game changer. I spray it on after their bath, and it's non-irritating while providing long-lasting protection against flies."

"This is the best bug spray for my horses, especially with all the mosquitoes around. It keeps them calm and bug-free, though I do wish it were a bit more affordable. Definitely worth the investment!"

"I sprayed this all over my front porch and it works so good!! I used to have 50+ flies on my porch, but after spraying, I didn't see a fly for 3 days! I just keep spraying my outdoor rug now and we're good. Definitely recommend! You can even use it on dogs!"

"Living in the Adirondacks, I face a ton of nasty insects during warmer months. My dogs would go crazy until I found this product. The scent is mild and doesn't bother my dogs at all. Insects leave them alone, allowing them to relax outside. I highly recommend it!"

"This spray has been great for keeping flies off my older dog with incontinence issues while she sleeps in the yard. Good effectiveness and no side effects noticed. Just keep in mind that the bottle can leak in the heat, but if you remember to rotate the spray tip, it helps a lot."

"I manage 50 horses and after 20 years, this is the only fly spray that works. I’ve tried them all, and even the oil-based ones can’t compare. It’s a bit on the expensive side, but totally worth it. Coupons would be appreciated!"

"Living in Florida, we deal with numerous flies and mosquitoes. I spray my seven horses almost daily, and this product keeps them protected. If you sign up for AutoShip, the price is unbeatable! Highly recommend this product!"

"This fly spray is one of the best I’ve found. It lasts longer than others, and for stubborn flies, it works better when applied consistently. Sure, it can leave my horse feeling a bit sticky, but in the Texas heat with all these flies, it’s worth it. Highly recommend it!"

"I've been using this on my horses for years, but recently, the flies were bothering my dog's ears. I applied a small amount of Swat on her ears, and it kept the flies away all day. Now, she has no more bites!"

"I really appreciate the pink color because it helps me see which horses have had it applied. I only use a little on the sensitive areas like the eyes and ears. It can be a bit messy, but it works for hours!"

"This product was recommended by a vet for my miniature donkeys. It’s fantastic at keeping flies off, and they don’t mind it at all. It’s a much better option than using sprays!"

"I was amazed at the difference this made! No more flies swarming the door, and my horse loves it too. It's easy to use and lasts a long time. Definitely a permanent product for us!"

"To say I was skeptical is an understatement. After just two days, I noticed fewer flies, and by day five, it was significantly less. My horse is happier now, and it was worth the money!"

"This product has been a game-changer for my equine therapy program. Within ten days, the flies were practically gone! I highly recommend it to anyone struggling with fly control."

"Living in Texas, I struggled with flies until I tried this spray. It worked wonders! After applying it, there were no flies left on my horse. I was amazed when my farrier arrived hours later, and the spray still held up. Although I generally reapply it every week, it truly lasts several days. It's a bit pricey, but totally worth it!"

"I bought this spray a week ago, and the flies are still gone from my pony, Buttercup. I love the hairspray-like canister; it allows me to spray every area easily. While the scent isn't my favorite, it seems to keep the flies away. No more daily spraying! I'm so glad I discovered this product!"

"This was my first time using this product, and my horses loved it! I noticed immediate relief from flies and mosquitoes, and I've already ordered more. Although it's a bit expensive, keeping my horses comfortable during summer is worth it. Highly recommend!"

"I was skeptical but this really works for my horses prone to ticks. It's definitely a new summer favorite!"

"I apply it every two weeks and I rarely find ticks. It's worth every penny and works great!"

"I've tried everything for flies, but this is the first product that actually works. My horses are now comfortable and I've decided to stick with it!"

"I work at a horse farm, and I teach lessons. The kids struggle when the horses are constantly bothered by flies. This stuff is the best! Horses and kids are so much happier! I also spray it on an older horse who the flies love. Even in the stalls, the flies are significantly less! We tried other products, and none of it compares! It does last because you only need to spray once a day."

"When I first came across this product, I was skeptical due to the limited reviews. However, I’m so glad I ordered it! My horse has heaves, and the old fly spray made him cough worse and left him covered in flies. With this all-natural spray, he does not cough or mind me spraying his face, and there are NO FLIES on him! Plus, he smells amazing! Just remember to shake it often—I use a clear spray bottle. Five stars aren’t enough!"

"I had been using this fly spray for years, but after ordering a new bottle, my horses developed huge welts and hives shortly after spraying. I had to call an equine vet for an emergency visit, and thankfully, they responded quickly. The vet determined that it was the new fly spray that caused the reaction. They mentioned they had seen similar issues with this brand due to inconsistencies in batches. I won’t be using this product again; it’s too risky."

"I've been around horses my entire life, and I have to say, Tri-Tec is amazing! I've dealt with horrible flies in Florida and Texas, and nothing worked as well as this product. I won't use any other fly spray!"

"Living in Hawaii, I've tried nearly every fly spray available, but Tri-Tec really stands out. It keeps the flies and gnats off my horse, and while it says it lasts 14 days, I find it effective for about a week, especially during good weather. Totally worth the price!"

"With 10 horses to care for, the flies have been terrible this year. After trying every brand out there, I can confidently say that Tri-Tec is the ONLY one that effectively keeps flies away. Sure, it lasts only a day or two, but it’s still a vast improvement over others."

“I had tried several fly sprays on my horse, but this one, recommended by a friend, is simply the BEST. The citronella smell is tolerable, and he doesn't mind it at all. It keeps him and especially his eye area fly-free all day long. Since he hates fly masks, this has been a great alternative. I always keep it on hand now, and thankfully, the package arrived leak-free.”

“I absolutely love this fly spray! It works wonders for fly control and has made my horse's coat look AMAZING. It’s so conditioning that he went from a dirt brownish-orange to a BRIGHT orange just with this product.”

“I started using this fly spray in April, and initially, it seemed fine. However, about a month and a half later, one of my horses developed swelling and breakouts. I was wrapping his legs and spraying the fly spray, not realizing it was the issue. I stopped using it and washed his legs to strip everything off, and within days, the swelling went down. It didn’t affect my other horses, but I just wanted to advise caution.”