Best Horse Fly Repellents Under $100 (2026)
We ranked products under $100 by value score using ingredient effectiveness, application type, sweat resistance, safety, and price-to-performance
The Verdict
- Best Overall: Formula 707 MultiFly Feed-Thru Fly Control Pellets for Horses — Best feed-through option for herd control: palatable pellets designed to reduce fly emergence across animals
- Best Value: Absorbine UltraShield EX insecticide spray for horses & dogs — Best quick topical relief: broad-use spray that treats horses and dogs for flies and ticks with easy application
- Best Premium: Endure Sweat-Resistant Fly Spray for Horses 128 oz — Best sweat-resistant spray: designed to stay effective during exercise and provide extended insect protection
Top Picks
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1
Best Overall Formula 707 MultiFly Feed-Thru Fly Control Pellets for Horses
Best feed-through option for herd control: palatable pellets designed to reduce fly emergence across animals
Pelleted feed-through fly control for horses using Novaluron IG regulator. 99.9% effective at breaking the fly life cycle. Palatable alfalfa and wheat midds pellets; horses eat with their feed. Customer praise for effectiveness and ease of use
- novaluron-based growth regulator
- non-organophosphate safety
- palatable alfalfa-wheat pellets
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2
Formula 707 MultiFly Feed-Thru Fly Control Pellets for Horses
Best for targeted IGR control: palatable feed-through pellets formulated with a novaluron insect growth regulator
Palatable horse feed pellets that reduce fly populations using novaluron IG reg. Safe for horses and easy to administer with daily feed. Customers report 80-90% fly reduction and horses eat it without issues
- novaluron-based IGR
- palatable pellets for horses
- not an organophosphate
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3
Best Value Absorbine UltraShield EX insecticide spray for horses & dogs
Best quick topical relief: broad-use spray that treats horses and dogs for flies and ticks with easy application
Insecticide spray that kills & repels 70+ species, including flies, mosquitoes, ticks, and fleas. Provides weatherproof protection up to 17 days with UltraBond technology, suitable for horses, dogs, and premises. Customer note: effective on horses and comparable to some oral flea/tick medicines for dogs
- kills & repels 70+ species
- weatherproof up to 17 days
- USA-made formula
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4
Pyranha Wipe N' Spray for Horses - Oil-Based Fly Control
Best oil-based topical for persistent protection: wipe-and-spray formula built for longer-lasting fly control on coats
Oil-based fly repellent for horses with long-lasting protection against 70+ pests. Effective through sweat, dirt, and water. Customers note lasting impact and occasional odor concerns
- oil-based lasting protection
- repels 70+ pests
- works through sweat and water
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5
Best Premium Endure Sweat-Resistant Fly Spray for Horses 128 oz
Best sweat-resistant spray: designed to stay effective during exercise and provide extended insect protection
Sweat-resistant fly spray for horses that lasts up to 14 days and protects against flies, gnats, mosquitoes, ticks and lice. Customers note effective protection and pleasant scent, with some concerns about spray mechanism and leakage
- sweat-resistant formula
- lasts up to 14 days
- multi-insect protection
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6
Absorbine UltraShield EX Combo Sprayer & Refill
Best bundled value for frequent use: combo sprayer with refill option to streamline regular fly control routines
Insecticide for horses, dogs, and premises that kills and repels 70+ insect species with weatherproof protection up to 17 days. Customers note its wide spray coverage and pleasant smell, though some report leakage and variable longevity
- 70+ species protection
- Weatherproof up to 17 days
- Includes sprayer and refill
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7
Pyranha Fly Spray for Horses (Wipe & Spray) 32oz
Best mid-size wipe-and-spray: oil-based formula offering practical coverage for daily stable use
Fly spray for horses, offering repellent protection. Suitable for wipe and spray application with oil base. Customer note: mixed feedback on performance
- oil-base formula
- two-in-one spray and wipe
- targeted for horses
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8
Pyranha Fly Spray for Horses and Premises
Best balanced fly spray: multi-purpose formula suitable for horse coats and premises with easy application
Fly spray for horses and surroundings with repellent and pyrethrin blend. Quick insect kill and citronella scent. customer insight unavailable
- high concentration fly repellent
- quick kill of specific insects
- pyrethrin-based formulation
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9
Pyranha Fly Spray for Horses (Wipe & Spray) – Zero-Bite
Best for zero-bite claims: wipe-and-spray approach focused on fast knockdown and ongoing surface protection
Pyranha Fly Spray for horses, available as wipe and spray. designed to repel flies and reduce bites with oil base. customer insight notes mixed sentiment
- horse-specific fly protection
- wipe and spray formats
- oil-based comfort
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10
Farnam Tri-Tec 14 Fly Spray for Horses
Best broad-spectrum topical: versatile fly spray that combines multiple actives for general fly control
Insect repellent for horses with long-lasting protection and coat conditioning. Customers report effective repellent and a pleasant smell, though results on duration vary
- long-lasting insect protection
- conditions coat
- quick knockdown