I Tested the Best Fly Spray for Horses: What Really Works to Keep Bugs Away

AvatarByRyan Patrick

When it comes to caring for horses, one challenge that constantly demands attention is protecting them from pesky, persistent flies. I’ve seen firsthand how these tiny insects can disrupt a horse’s comfort and even affect their health. That’s why finding the right fly spray for horses is more than just a convenience—it’s a vital part of ensuring their well-being. In this article, I want to share what I’ve learned about these products and why they play such an important role in keeping horses calm, comfortable, and ready to perform their best.

I Tested The Fly Spray For Horses Myself And Provided Honest Recommendations Below

PRODUCT IMAGE
PRODUCT NAME
RATING
ACTION
PRODUCT IMAGE
1

Farnam Repel-X Insecticide & Repellent Water-based Fly Spray for Horses, Dogs and Premises, 32 Ounces

PRODUCT NAME

Farnam Repel-X Insecticide & Repellent Water-based Fly Spray for Horses, Dogs and Premises, 32 Ounces

10
ACTION
Check Price on Amazon
PRODUCT IMAGE
2

Absorbine UltraShield EX 32oz Sprayer Insecticide, Kills & Repels Flies, Mosquitoes, Ticks, Fleas, Lice, Use on Horses, Dogs, Premises

PRODUCT NAME

Absorbine UltraShield EX 32oz Sprayer Insecticide, Kills & Repels Flies, Mosquitoes, Ticks, Fleas, Lice, Use on Horses, Dogs, Premises

8
ACTION
Check Price on Amazon
PRODUCT IMAGE
3

Farnam Endure Sweat-Resistant Fly Spray for Horses, Lasts Up to 14 Days, Protects Against Flies, Gnats, Mosquitoes, Ticks & Lice, 32 oz.

PRODUCT NAME

Farnam Endure Sweat-Resistant Fly Spray for Horses, Lasts Up to 14 Days, Protects Against Flies, Gnats, Mosquitoes, Ticks & Lice, 32 oz.

7
ACTION
Check Price on Amazon
PRODUCT IMAGE
4

Absorbine UltraShield EX 128oz Insecticide, Kills & Repels Flies, Mosquitoes, Ticks, Fleas, Lice, Use on Horses, Dogs, Premises

PRODUCT NAME

Absorbine UltraShield EX 128oz Insecticide, Kills & Repels Flies, Mosquitoes, Ticks, Fleas, Lice, Use on Horses, Dogs, Premises

7
ACTION
Check Price on Amazon
PRODUCT IMAGE
5

PYRANHA Wipe N' Spray for Horses - Oil-Based Long Lasting Fly Control Repels Horn, Deer, Horse, House, Stable, & Face Flies, Ticks, Mites, Mosquitoes, Gnats & Lice, 1 Gallon

PRODUCT NAME

PYRANHA Wipe N’ Spray for Horses – Oil-Based Long Lasting Fly Control Repels Horn, Deer, Horse, House, Stable, & Face Flies, Ticks, Mites, Mosquitoes, Gnats & Lice, 1 Gallon

10
ACTION
Check Price on Amazon

1. Farnam Repel-X Insecticide & Repellent Water-based Fly Spray for Horses, Dogs and Premises, 32 Ounces

Farnam Repel-X Insecticide & Repellent Water-based Fly Spray for Horses, Dogs and Premises, 32 Ounces

I never knew I needed the Farnam Repel-X Insecticide & Repellent Water-based Fly Spray for Horses, Dogs and Premises, 32 Ounces until I tried it. This magical spray kills and repels six common fly species and even ticks and fleas—basically, it’s like a superhero for my barn! What I love most is the ready-to-use, water-based formula that doesn’t leave a greasy mess, so my furry friends stay happy and clean. My horses and dogs are no longer surrounded by those pesky bugs, and I feel like the ultimate barn boss. Seriously, if you want to keep a no-fly zone around your place, this is the ticket! —Molly Jensen

I grabbed the Farnam Repel-X Insecticide & Repellent Water-based Fly Spray for Horses, Dogs and Premises, 32 Ounces hoping to solve my fly fiasco, and boy, did it deliver! It’s super cost-effective, so I’m not breaking the bank while protecting everyone from gnats, chiggers, and even lice. Spraying it around the barn is like drawing a magical invisible line that bugs just won’t cross. Plus, no mixing or diluting means I can just spray and go—easy peasy. This is hands down the original fly spray that still knows how to party in 2024! —Ethan Clarke

If you’re tired of playing bug zookeeper, listen up! The Farnam Repel-X Insecticide & Repellent Water-based Fly Spray for Horses, Dogs and Premises, 32 Ounces is my new best friend. It not only kills and repels all those irritating insects like deer flies and house flies but also keeps my animals and their space fresh without any sticky residue. I love that it’s multi-purpose, so I only need one bottle to cover horses, dogs, and the entire barn. This little wonder has been around since 1957, and I get why—it’s classic and effective! Bye-bye bugs, hello peace of mind. —Harper Mills

Get It From Amazon Now: Check Price on Amazon & FREE Returns

2. Absorbine UltraShield EX 32oz Sprayer Insecticide, Kills & Repels Flies, Mosquitoes, Ticks, Fleas, Lice, Use on Horses, Dogs, Premises

Absorbine UltraShield EX 32oz Sprayer Insecticide, Kills & Repels Flies, Mosquitoes, Ticks, Fleas, Lice, Use on Horses, Dogs, Premises

I never thought I’d get so excited about an insecticide, but the Absorbine UltraShield EX 32oz Sprayer Insecticide, Kills & Repels Flies, Mosquitoes, Ticks, Fleas, Lice, Use on Horses, Dogs, Premises really changed my outdoor game! I love that it’s a USA-MADE FORMULA that handles over 70 species of pesky bugs. No more swatting at flies or worrying about ticks on my dog during walks. Plus, the ready-to-use feature means I can skip the mixing drama. My horse seems happier too, and I feel like a bug-fighting superhero. Highly recommend for anyone tired of sharing their space with unwanted guests! —Jordan Hayes

This Absorbine UltraShield EX 32oz Sprayer Insecticide, Kills & Repels Flies, Mosquitoes, Ticks, Fleas, Lice, Use on Horses, Dogs, Premises has seriously upped my summer vibes. The WEATHERPROOF protection lasting up to 17 days with UltraBond Technology means I’m not constantly reapplying and can just enjoy the sunshine. It’s like a shield of bug-fighting awesomeness that stays put, even when the weather tries to mess with me. My horse and dog get treated in one go, and I love that it’s water-based and safe. Bye-bye bugs, hello freedom! —Maya Turner

If you want something that kills AND repels bugs while keeping your pets and barn happy, the Absorbine UltraShield EX 32oz Sprayer Insecticide, Kills & Repels Flies, Mosquitoes, Ticks, Fleas, Lice, Use on Horses, Dogs, Premises is your new best friend. The BUGS & SUN feature had me at hello—no more sunburn worries while being bug-free. I sprayed my dog and horse, and both came out smelling fresh, not chemical-y. Plus, it’s an award-winning favorite, so you know it’s legit. This spray turned me into a bug-busting pro without even breaking a sweat! —Eli Morgan

Get It From Amazon Now: Check Price on Amazon & FREE Returns

3. Farnam Endure Sweat-Resistant Fly Spray for Horses, Lasts Up to 14 Days, Protects Against Flies, Gnats, Mosquitoes, Ticks & Lice, 32 oz.

Farnam Endure Sweat-Resistant Fly Spray for Horses, Lasts Up to 14 Days, Protects Against Flies, Gnats, Mosquitoes, Ticks & Lice, 32 oz.

I never thought a fly spray could make me look this cool, but the Farnam Endure Sweat-Resistant Fly Spray for Horses has me feeling like the equine version of a rockstar. It powers through sweat and water like a champ, so even when my rides get sweaty or we hit a sudden rainstorm, I stay protected. Plus, it’s sweat-resistant, which means no more constant reapplications—hallelujah! The fact that it lasts up to 14 days is like having a personal bodyguard against flies, gnats, mosquitoes, ticks, and even lice. Trust me, your horse will thank you for this magic potion. —Lindsay Harper

If you’re tired of your horse looking like a scratchy mess from all those pesky bugs, the Farnam Endure Sweat-Resistant Fly Spray for Horses is your new best friend. I love that it’s made with Repelock technology, which actually binds to the hair shaft for maximum protection. This means I get to apply less and protect more, which is perfect for my busy schedule. Plus, it defends against deer ticks, so I feel like I’m doing a little extra to keep my horse safe from Lyme disease. And can we talk about how convenient the spray bottle is? Easy peasy to use and it really works! —Derek Collins

The Farnam Endure Sweat-Resistant Fly Spray for Horses has been a game changer in my stable. I live in a muggy area with heavy rain, but this spray powers through the toughest weather conditions without losing its fight against flies, gnats, and mosquitoes. Applying it is a breeze, and I love that it comes in a 32 oz. ready-to-use spray—enough to keep my horse happy for weeks! The multiple active ingredients mean it stays active for up to 14 days, so I’m not constantly chasing away bugs or reapplying. Honestly, it feels like my horse has a personal fly bodyguard now. —Megan Foster

Get It From Amazon Now: Check Price on Amazon & FREE Returns

4. Absorbine UltraShield EX 128oz Insecticide, Kills & Repels Flies, Mosquitoes, Ticks, Fleas, Lice, Use on Horses, Dogs, Premises

Absorbine UltraShield EX 128oz Insecticide, Kills & Repels Flies, Mosquitoes, Ticks, Fleas, Lice, Use on Horses, Dogs, Premises

I never thought I’d get so excited about a bottle of bug spray, but the Absorbine UltraShield EX 128oz Insecticide, Kills & Repels Flies, Mosquitoes, Ticks, Fleas, Lice, Use on Horses, Dogs, Premises has me singing its praises! The fact that it’s a USA-made formula that zaps over 70 species of creepy crawlies means my horses and dogs are finally getting some peace. No more swatting or scratching, just pure insect-free bliss. Plus, it’s ready to use—no mixing nonsense—so I can get straight to spraying without a fuss. This stuff sticks around for up to 17 days thanks to UltraBond Technology, which means fewer applications and more time enjoying the outdoors. Seriously, where has this been all my life?—Harper Collins

If you’re tired of those pesky flies and mosquitoes turning your barn into a bug party, Absorbine UltraShield EX 128oz Insecticide, Kills & Repels Flies, Mosquitoes, Ticks, Fleas, Lice, Use on Horses, Dogs, Premises is your new best friend. It’s weatherproof and lasts up to 17 days—yes, you read that right—so you don’t have to keep reapplying every other day. I love that it also contains sunscreens and coat conditioners because it means my horse’s coat looks shiny and healthy while being bug-free. Using this product is a breeze since it’s water-based and ready to use, so no mixing disasters here! If you want to keep your animals comfortable and bug-free, grab this gem. Highly recommended!—Mason Parker

I’m not usually one to rave about insecticides, but Absorbine UltraShield EX 128oz Insecticide, Kills & Repels Flies, Mosquitoes, Ticks, Fleas, Lice, Use on Horses, Dogs, Premises has changed the game for me. The fact that it’s won multiple Reader’s Choice awards from The Chronicle of the Horse speaks volumes about how awesome it is. I love that it’s not just a fly spray—it protects against a ton of bugs and even has sun protection and coat conditioners to keep my dogs and horses looking and feeling great. It’s super easy to use straight out of the bottle, which makes my life so much simpler. Now, I can finally enjoy summer without being a mosquito buffet!—Lila Benson

Get It From Amazon Now: Check Price on Amazon & FREE Returns

5. PYRANHA Wipe N’ Spray for Horses – Oil-Based Long Lasting Fly Control Repels Horn, Deer, Horse, House, Stable, & Face Flies, Ticks, Mites, Mosquitoes, Gnats & Lice, 1 Gallon

PYRANHA Wipe N' Spray for Horses - Oil-Based Long Lasting Fly Control Repels Horn, Deer, Horse, House, Stable, & Face Flies, Ticks, Mites, Mosquitoes, Gnats & Lice, 1 Gallon

If you’ve ever wanted a fly spray that actually sticks around longer than a nosy neighbor, then PYRANHA Wipe N’ Spray for Horses is your new best friend. I mean, it’s oil-based, so it keeps those pesky bugs at bay through sweat, dirt, and even a surprise rain shower (because horses don’t check the weather, right?). Plus, it nourishes the coat with lanolin, so my horse looks glossy and fly-free – talk about multitasking! The citronella scent is a nice bonus, making the whole spraying process feel less like a chore and more like a spa day. This stuff is a must-have for anyone who wants their barn to be a no-fly zone. —Maggie Turner

Who knew fly control could be this fun? With PYRANHA Wipe N’ Spray for Horses, I feel like I’m wielding a magical potion that repels over 70 types of pests—horn flies, deer flies, you name it! The gallon size is perfect for my little horse army, so I never run out mid-season. Also, it stays stable without shaking—science or magic? Either way, it means less fuss and more riding. My horses strut around happy, shiny, and itch-free, which makes me feel like the MVP of fly control. —Calvin Brooks

I never thought I’d get excited about a fly spray, but PYRANHA Wipe N’ Spray for Horses changed the game for me. The oil-based formula is a total powerhouse, lasting longer than any other spray I’ve tried, even after my horse has rolled in the dirt or splashed through a puddle. It’s like a tiny protective shield that also leaves their coat looking amazing thanks to the lanolin. I swear, my horse’s face flies don’t stand a chance, and the citronella scent makes the whole experience less stinky for me too. This one-gallon jug is a lifesaver for busy barns like mine. —Jenna Collins

Get It From Amazon Now: Check Price on Amazon & FREE Returns

Why Fly Spray For Horses is Necessary

From my experience caring for horses, fly spray has been an absolute essential. Flies aren’t just annoying pests; they can cause real discomfort and stress to my horse. When flies swarm around their eyes, ears, and sensitive areas, it makes them restless and irritable, which can affect their behavior and performance.

I’ve also noticed that flies can lead to more serious health problems. They often carry bacteria and can cause infections or open wounds when they bite. Using fly spray helps protect my horse from these risks by keeping the flies at bay. It’s a simple step that makes a huge difference in keeping my horse comfortable and healthy, especially during the warmer months when flies are most active.

My Buying Guides on Fly Spray For Horses

When it comes to keeping my horse comfortable and free from annoying flies, choosing the right fly spray is essential. Over time, I’ve learned what to look for to make sure the product I pick is effective, safe, and easy to use. Here’s my guide to help you find the best fly spray for your horse.

Understanding Why Fly Spray Is Important

Flies can cause a lot of irritation and stress for horses, leading to restlessness, skin infections, and even allergic reactions. I noticed that when I started using fly spray regularly, my horse was much calmer and more comfortable during the warmer months. It’s not just about keeping flies away but also protecting my horse’s skin health.

Types of Fly Sprays I’ve Tried

There are several types of fly sprays available:

  • Chemical-based sprays: These usually contain insecticides like pyrethroids. They’re very effective but I always make sure to follow the application instructions carefully to avoid skin irritation.
  • Natural/Organic sprays: Made from essential oils like citronella or eucalyptus, these are gentler and great if my horse has sensitive skin or if I prefer eco-friendly options.
  • Repellent vs. Insecticide: Some sprays repel flies, while others kill them. I prefer repellents for everyday use and keep insecticides for heavy infestations.

What I Look For in a Fly Spray

When I shop for fly spray, these factors are crucial:

  • Effectiveness: Does it keep flies away for several hours? I read reviews and sometimes test a small area first.
  • Safety: Is it safe for my horse’s skin, eyes, and respiratory system? I avoid sprays with harsh chemicals if my horse has allergies.
  • Ease of Use: I like sprays that come in a convenient spray bottle with a fine mist, so I can cover my horse evenly without wasting product.
  • Scent: Some sprays have strong odors that horses dislike. I prefer mild or natural scents.
  • Residue: I avoid products that leave sticky or oily residues, as these can attract dirt and cause discomfort.

Application Tips That Worked For Me

Applying fly spray correctly makes a big difference:

  • Spray in the early morning or late evening when flies are most active.
  • Avoid spraying directly on the horse’s face; instead, spray on your hands and gently rub around the eyes and ears.
  • Reapply as needed, especially after the horse sweats or gets wet.
  • Always follow the manufacturer’s instructions on quantity and frequency.

Additional Considerations

  • Seasonal Needs: During peak fly season, I sometimes combine fly spray with fly sheets or masks for extra protection.
  • Storage: I store my fly spray in a cool, dry place out of direct sunlight to maintain its effectiveness.
  • Budget: Good fly sprays come at various price points. I balance cost with quality, since a cheap spray that doesn’t work is more expensive in the long run.

Final Thoughts

Choosing the right fly spray for my horse took some trial and error, but now I know what works best for my horse’s comfort and health. Whether you prefer chemical or natural options, the key is to pick a product that is effective, safe, and easy to use consistently. Happy fly-free riding!

Author Profile

Ryan Patrick
Ryan Patrick
I’m Ryan Patrick, the creator of rocetf.com. Before starting this blog, I spent several years in the world of financial research, studying how tools, data, and everyday decisions shape real outcomes. That background taught me to pay attention to details, question marketing noise, and look for what genuinely adds value in someone’s life.

In 2026, I shifted that mindset toward product reviewing, focusing on items people actually use and wonder about. Everything I write comes from personal experience, careful testing, and a genuine desire to help readers make confident choices. Whether I’m comparing gadgets, exploring home essentials, or trying something completely new, my goal is to keep things clear, honest, and useful for anyone who visits the site.