May 10, 2026

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10 Best horse fly repellents of 2026

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Best Choice

1

Farnam
Farnam SimpliFly Feed Through Fly Control Daily Supplement for Horses, 10 lb, EPA Approved Palatable Pellets, Prevents Stable Flies in Manure and Break and Prevents the Fly Life Cycle, 160 Day Supply

18% Off
Main highlights

Key Features and Benefits
Prevents fly development in horse manure with highly palatable, non-absorbable pellets containing LarvaStop and diflubenzuron, offering up to 800-day supply.

Ideal Use Cases
Best for horse owners looking to reduce fly populations in stables and fields economically and effectively without using organophosphates.

Customer Reviews Highlight
Most praised for significantly reducing fly populations by 97-100%, with users appreciating the product`s effectiveness and ease of use.
Key specs
- is discontinued by manufacturer:Yes
- product dimensions:7.5 x 9.5 x 9.75 inches
- country of origin:USA
- item weight:9.99 pounds
- customer reviews:4.6 4.6 out of 5 stars 908 ratings 4.6 out of 5 stars
9.8

Exceptional

Our Rating
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Value for Money

2

Pyranha
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
Main highlights

Key Features
1-gallon ready-to-use formula effectively targets flies, mosquitoes, gnats, fleas, and ticks, offering a comprehensive pest solution.

Ideal Use Cases
Perfect for outdoor activities, backyard gatherings, and homes with pets, ensuring areas are free from pesky insects.

Customer Praise
Most reviews highlight its effectiveness, noting significant reduction in pests with consistent use, making it a reliable choice.
Key specs
- is discontinued by manufacturer:No
- product dimensions:4.5 x 7 x 12 inches 7.1 Pounds
- country of origin:N/A
- item weight:N/A
- customer reviews:N/A
9.7

Exceptional

Our Rating
3

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

23% Off
Main highlights

Strong Formula and Broad Pest Coverage
Kills and repels over 70 species, including flies, mosquitoes, ticks.

Ideal for Horses, Dogs, and Outdoor Areas
Ready-to-use spray for animals and premises, offers versatile protection.

Highly Effective Fly Repellent
Customers praise its ability to eliminate flies, ensuring outdoor comfort.
Key specs
- is discontinued by manufacturer:No
- product dimensions:4 x 4 x 10 inches 2.2 Pounds
- country of origin:USA
- item weight:N/A
- customer reviews:N/A
9.4

Excellent

Our Rating
4

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

Strongest Formula and Weatherproof
Kills and repels 70+ species of pests, provides up to 17 days of protection with UltraBond Technology, and includes sunscreens and coat conditioners.

Best for Horses and Dogs
Ideal for use on horses, ponies, dogs, barns, or premises; ready-to-use, water-based formula that requires no mixing.

Effective Fly Protection
Customers praise its effectiveness in keeping flies away, with many noting it works better than other brands and lasts for a few days.
Key specs
- is discontinued by manufacturer:No
- product dimensions:16.12 x 7.62 x 13.75 inches
- country of origin:USA
- item weight:8 pounds
- customer reviews:4.7 4.7 out of 5 stars 1,366 ratings 4.7 out of 5 stars
9.2

Excellent

Our Rating
5

Farnam
Farnam Endure Fly Spray for Horses - Long-Lasting Sweat-Resistant Fly Repellent, Repels Flies, Mosquitoes, Gnats and Ticks, Up to 14 Days Fly Control - 128 oz Refill
Main highlights

Sweat Resistant Protection
Endure provides sweat-resistant fly, mosquito, and tick protection to prevent exposure to harmful bacteria and Lyme Disease.

Versatile Application
Ideal for horses, cows, and goats in challenging weather conditions like heavy rain and muggy heat, available in various sizes for convenience.

Long Lasting Effectiveness
Customers praise its long-lasting effectiveness, stating it works better than most other sprays and provides extended protection against various insects.
Key specs
- is discontinued by manufacturer:No
- product dimensions:4.73 x 7.84 x 13 inches 8.4 Pounds
- country of origin:USA
- item weight:N/A
- customer reviews:N/A
9.1

Excellent

Our Rating
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6

Formula 707

Formula 707 MultiFly Feed-Thru Fly Control Pellets for Horses - Palatable & Safe Fly Population Reduction (5 lb Bag - 91 Servings)
9.0

Excellent

Our Rating
7

Farnam
Farnam Endure Fly Spray for Horses - Long-Lasting Sweat-Resistant Fly Repellent, Repels Flies, Mosquitoes, Gnats and Ticks, Up to 14 Days Fly Control - 32 oz Spray
Main highlights

Key Features and Benefits
Sweat-resistant formula with up to 14 days of protection against flies, mosquitoes, and ticks, featuring Repelock technology for optimal hair shaft binding.

Ideal Use Cases
Perfect for challenging conditions such as heavy rain and intense heat, ensuring uninterrupted protection during outdoor activities and in humid climates.

Customer Reviews Highlight
Most praised for its long-lasting effectiveness, users appreciate the reduced frequency of applications and its durability through sweat and rain.
8.9

Very Good

Our Rating
8

Bonide
REVENGE Horse & Stable Fly Spray, 128 oz Ready-to-Use with Power Sprayer, Long Lasting Flea and Tick Control
Main highlights

Versatile Protection for Multiple Animals
This water-based formula protects horses, cattle, goats, sheep, swine, poultry, and dogs from various pests with long-lasting results up to 4 weeks.

Effective for Indoor and Outdoor Use
Ideal for spot applications indoors and lawn, soil, and building foundations outdoors to prevent insect infestations.

Highly Praised for Fly Control
Customers appreciate its effectiveness in reducing fly activity in yards, stables, and animal enclosures without strong chemical smells.
Key specs
- is discontinued by manufacturer:N/A
- product dimensions:5.75 x 9.5 x 11.75 inches
- country of origin:USA
- item weight:9.26 pounds
- customer reviews:4.0 4.0 out of 5 stars 168 ratings 4.0 out of 5 stars
8.6

Very Good

Our Rating
9

Farnam
Farnam Tri-Tec 14 Fly Spray for Horses – Long-Lasting Insect Repellent Kills and Repels Flies, Gnats, Ticks & Mosquitoes, Conditions Coat – Up to 14 Days Protection – 128 oz

18% Off
Main highlights

Powerful_Long-Lasting_Protection
Provides quick knockdown and long-lasting protection against flies, gnats, mosquitoes, and ticks with multiple active ingredients working up to 14 days.

Versatile_Application_Options
Available in 15 oz. Finishing Spray, 32 oz. Ready-To-Use Spray, and Easy Pour 128 oz. Gallon Refill, suitable for various needs.

Effective_Fly_Repellent
Highly praised for its effectiveness in repelling flies and other pests, even though it may not last the full 14 days as advertised.
Key specs
- is discontinued by manufacturer:No
- product dimensions:4.73 x 7.84 x 13 inches 8.4 Pounds
- country of origin:USA
- item weight:N/A
- customer reviews:N/A
8.5

Good

Our Rating
10

Farnam
Farnam SimpliFly Feed Through Fly Control Daily Supplement for Horses, 3.75 lb, EPA Approved Palatable Pellets, Prevents Stable Flies in Manure and Break and Prevents the Fly Life Cycle, 60 Day Supply
Main highlights

Key Features
Prevents fly development in horse manure with non-absorbent, organophosphate-free LarvaStop and diflubenzuron. Available in highly palatable, economical alfalfa pellets.

Ideal Use Cases
Best for horse owners seeking a feed-additive solution to manage stable and house flies, especially in environments where fly control is challenging.

Customer Reviews Highlight
Most reviews praise the product`s effectiveness in reducing fly populations, noting significant improvement in stable conditions and horse comfort.
Key specs
- is discontinued by manufacturer:Yes
- product dimensions:5 x 6.5 x 7.5 inches
- country of origin:USA
- item weight:3.75 pounds
- customer reviews:4.5 4.5 out of 5 stars 510 ratings 4.5 out of 5 stars
8.4

Good

Our Rating

10 Best horse fly repellents of 2026

1

Farnam SimpliFly Feed Through Fly Control Daily Supplement for Horses, 10 lb, EPA Approved Palatable Pellets, Prevents Stable Flies in Manure and Break and Prevents the Fly Life Cycle, 160 Day Supply

How do we rank?

How do we rank?

Analyzing top stores

2

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

3

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

4

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

5

Farnam Endure Fly Spray for Horses - Long-Lasting Sweat-Resistant Fly Repellent, Repels Flies, Mosquitoes, Gnats and Ticks, Up to 14 Days Fly Control - 128 oz Refill

6

Formula 707 MultiFly Feed-Thru Fly Control Pellets for Horses - Palatable & Safe Fly Population Reduction (5 lb Bag - 91 Servings)

7

Farnam Endure Fly Spray for Horses - Long-Lasting Sweat-Resistant Fly Repellent, Repels Flies, Mosquitoes, Gnats and Ticks, Up to 14 Days Fly Control - 32 oz Spray

8

REVENGE Horse & Stable Fly Spray, 128 oz Ready-to-Use with Power Sprayer, Long Lasting Flea and Tick Control

9

Farnam Tri-Tec 14 Fly Spray for Horses – Long-Lasting Insect Repellent Kills and Repels Flies, Gnats, Ticks & Mosquitoes, Conditions Coat – Up to 14 Days Protection – 128 oz

10

Farnam SimpliFly Feed Through Fly Control Daily Supplement for Horses, 3.75 lb, EPA Approved Palatable Pellets, Prevents Stable Flies in Manure and Break and Prevents the Fly Life Cycle, 60 Day Supply

Similar products on Amazon

Farnam Repel-X Emulsifiable Fly Spray for Horses, Ready to Use, 32 Fl Oz

Farnam Equi-Spot, Horse Fly Control, Long-lasting Protection, 6 Applications, 12-Week Supply for One Horse

Formula 707 Fly Deny Spray for Horses & Ponies, Sweat-Resistant 14-Day Protection from Flies, Gnats & Mosquitoes, Repels and Kills, 32 Oz

Farnam Repel-X pe Concentrated Fly Spray for Horses, Just Add Water 16 Ounces

Farnam Roll-On Fly Repellent for Horses, Ponies and Dogs 2 Ounces

Farnam Broncoe Fly Spray Plus Citronella for Horses, Dogs & Premises - Kills Flies, Ticks, Fleas, Lice & Mosquitoes - Water-Based, Non-Oily Multi-Purpose Insecticide - 32 oz

Farnam Flys Off Fly Repellent Ointment 7 Ounces

Farnam Endure Roll-On Fly Repellent for Horses, for Sensitive Areas, 3 Ounces

Absorbine UltraShield Green All-Natural Fly & Insect Repellent for Horses & Dogs, Essential Oils Repel & Control, 32oz Spray Bottle

Farnam Swat Fly Repellent Ointment for Wounds, Sores, Scratches and Abrasions, 7 oz

10 Best horse fly repellents of 2026

1

Farnam SimpliFly Feed Through Fly Control Daily Supplement for Horses, 10 lb, EPA Approved Palatable Pellets, Prevents Stable Flies in Manure and Break and Prevents the Fly Life Cycle, 160 Day Supply

How do we rank?

How do we rank?

Analyzing top stores

2

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

3

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

4

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

5

Farnam Endure Fly Spray for Horses - Long-Lasting Sweat-Resistant Fly Repellent, Repels Flies, Mosquitoes, Gnats and Ticks, Up to 14 Days Fly Control - 128 oz Refill

6

Formula 707 MultiFly Feed-Thru Fly Control Pellets for Horses - Palatable & Safe Fly Population Reduction (5 lb Bag - 91 Servings)

7

Farnam Endure Fly Spray for Horses - Long-Lasting Sweat-Resistant Fly Repellent, Repels Flies, Mosquitoes, Gnats and Ticks, Up to 14 Days Fly Control - 32 oz Spray

8

REVENGE Horse & Stable Fly Spray, 128 oz Ready-to-Use with Power Sprayer, Long Lasting Flea and Tick Control

9

Farnam Tri-Tec 14 Fly Spray for Horses – Long-Lasting Insect Repellent Kills and Repels Flies, Gnats, Ticks & Mosquitoes, Conditions Coat – Up to 14 Days Protection – 128 oz

10

Farnam SimpliFly Feed Through Fly Control Daily Supplement for Horses, 3.75 lb, EPA Approved Palatable Pellets, Prevents Stable Flies in Manure and Break and Prevents the Fly Life Cycle, 60 Day Supply

Similar products on Amazon

Farnam Repel-X Emulsifiable Fly Spray for Horses, Ready to Use, 32 Fl Oz

Farnam Equi-Spot, Horse Fly Control, Long-lasting Protection, 6 Applications, 12-Week Supply for One Horse

Formula 707 Fly Deny Spray for Horses & Ponies, Sweat-Resistant 14-Day Protection from Flies, Gnats & Mosquitoes, Repels and Kills, 32 Oz

Farnam Repel-X pe Concentrated Fly Spray for Horses, Just Add Water 16 Ounces

Farnam Roll-On Fly Repellent for Horses, Ponies and Dogs 2 Ounces

Farnam Broncoe Fly Spray Plus Citronella for Horses, Dogs & Premises - Kills Flies, Ticks, Fleas, Lice & Mosquitoes - Water-Based, Non-Oily Multi-Purpose Insecticide - 32 oz

Farnam Flys Off Fly Repellent Ointment 7 Ounces

Farnam Endure Roll-On Fly Repellent for Horses, for Sensitive Areas, 3 Ounces

Absorbine UltraShield Green All-Natural Fly & Insect Repellent for Horses & Dogs, Essential Oils Repel & Control, 32oz Spray Bottle

Farnam Swat Fly Repellent Ointment for Wounds, Sores, Scratches and Abrasions, 7 oz

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