10 Best Fly Sprays for Horses 2025: According to Reviews | Chewy

The 10 Best Fly Sprays for Horses

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How we created this fly spray list

We leveraged input from our veterinarians and artificial intelligence to identify key considerations to help you find the best fly sprays for horse.
We scanned thousands of customer reviews and ratings and scored each product based on its performance against each of the key considerations. We then considered how popular a product is with Chewy customers and combined that with its key consideration scores to create the list of the best fly sprays for horses.

Key fly spray considerations

Ease of Application

Effectiveness

Ingredients

Longevity

1
Pyranha Wipe N' Spray Fly Protection Horse Spray, 1-gallon bottle
Pyranha Wipe N' Spray Fly Protection Horse Spray, 1-gallon bottle
Pyranha Wipe N' Spray Fly Protection Horse Spray, 1-gallon bottle

Pyranha Wipe N' Spray Fly Protection Horse Spray, 1-gallon bottle

Rated 4.7 out of 5 stars
553
$72.99Chewy Price
($72.99/gl)
Promo, New Customers Only: Spend $49+, Get $20 eGift Card

Our ratings

Ease of Application

4.5/5
Great

Effectiveness

4.6/5
Excellent

Ingredients

4.5/5
Great

Longevity

4.4/5
Great

Is this fly spray right for my pet?

Top Ingredients

Active Ingredients: Pyrethrins, Piperonyl Butoxide & Butoxpolypropylene Glycol

Health Feature

Pest Control
2
Absorbine UltraShield EX Insecticide, Kills & Repels Horse Spray, 128-fl oz bottle
Absorbine UltraShield EX Insecticide, Kills & Repels Horse Spray, 128-fl oz bottle
Absorbine UltraShield EX Insecticide, Kills & Repels Horse Spray, 128-fl oz bottle
Absorbine UltraShield EX Insecticide, Kills & Repels Horse Spray, 128-fl oz bottle
Absorbine UltraShield EX Insecticide, Kills & Repels Horse Spray, 128-fl oz bottle

Absorbine UltraShield EX Insecticide, Kills & Repels Horse Spray, 128-fl oz bottle

Rated 4.7 out of 5 stars
107
$77.69Chewy Price
($0.61/fl oz)
Promo, Spend $100, Get $30 eGift Card with code HAVEFUN

Our ratings

Ease of Application

4.4/5
Great

Effectiveness

4.4/5
Great

Ingredients

4.3/5
Great

Longevity

4.3/5
Great

Is this fly spray right for my pet?

Top Ingredients

Permethrin, Pyrethrins, Piperonyl Butoxide

Health Feature

Pest Control
3
Ecovet Fly Repellent Horse Spray, 18-fl oz bottle
Ecovet Fly Repellent Horse Spray, 18-fl oz bottle
Ecovet Fly Repellent Horse Spray, 18-fl oz bottle
Ecovet Fly Repellent Horse Spray, 18-fl oz bottle
Ecovet Fly Repellent Horse Spray, 18-fl oz bottle
Ecovet Fly Repellent Horse Spray, 18-fl oz bottle
Ecovet Fly Repellent Horse Spray, 18-fl oz bottle
Ecovet Fly Repellent Horse Spray, 18-fl oz bottle
Ecovet Fly Repellent Horse Spray, 18-fl oz bottle

Ecovet Fly Repellent Horse Spray, 18-fl oz bottle

Rated 4.2 out of 5 stars
192
$23.95Chewy Price
($1.34/fl oz)
Promo, New Customers Only: Spend $49+, Get $20 eGift Card

Our ratings

Ease of Application

4.5/5
Great

Effectiveness

4.3/5
Great

Ingredients

4.3/5
Great

Longevity

4.2/5
Great

Is this fly spray right for my pet?

Top Ingredients

Octanoic Acid: 5.0% , Nonanoic Acid: 5.0% , Decanoic Acid: 5.0% , Other ingredients: 85.0%

Health Feature

Pest Control
4
Farnam Endure Sweat-Resistant Fly Repellent Horse Spray, 15-fl oz bottle
Farnam Endure Sweat-Resistant Fly Repellent Horse Spray, 15-fl oz bottle
Farnam Endure Sweat-Resistant Fly Repellent Horse Spray, 15-fl oz bottle
Farnam Endure Sweat-Resistant Fly Repellent Horse Spray, 15-fl oz bottle
Farnam Endure Sweat-Resistant Fly Repellent Horse Spray, 15-fl oz bottle
Farnam Endure Sweat-Resistant Fly Repellent Horse Spray, 15-fl oz bottle
Farnam Endure Sweat-Resistant Fly Repellent Horse Spray, 15-fl oz bottle
Farnam Endure Sweat-Resistant Fly Repellent Horse Spray, 15-fl oz bottle

Farnam Endure Sweat-Resistant Fly Repellent Horse Spray, 15-fl oz bottle

Rated 4.6 out of 5 stars
88
$15.99Chewy Price
($1.07/fl oz)
Promo, Spend $100, Get $30 eGift Card with code HAVEFUN

Our ratings

Ease of Application

4.7/5
Excellent

Effectiveness

4.8/5
Excellent

Ingredients

4.7/5
Excellent

Longevity

4.6/5
Excellent

Is this fly spray right for my pet?

Lifestage

All Lifestages, Adult

Top Ingredients

Cypermethrin, Pyrethrins, Piperonyl Butoxide, And Butoxypolypropylene Glycol

Health Feature

Pest Control
5
Farnam Endure Sweat Resistant Horse Fly Spray, 32-fl oz bottle
Farnam Endure Sweat Resistant Horse Fly Spray, 32-fl oz bottle
Farnam Endure Sweat Resistant Horse Fly Spray, 32-fl oz bottle
Farnam Endure Sweat Resistant Horse Fly Spray, 32-fl oz bottle
Farnam Endure Sweat Resistant Horse Fly Spray, 32-fl oz bottle
Farnam Endure Sweat Resistant Horse Fly Spray, 32-fl oz bottle
Farnam Endure Sweat Resistant Horse Fly Spray, 32-fl oz bottle
Farnam Endure Sweat Resistant Horse Fly Spray, 32-fl oz bottle
Farnam Endure Sweat Resistant Horse Fly Spray, 32-fl oz bottle

Farnam Endure Sweat Resistant Horse Fly Spray, 32-fl oz bottle

Rated 4.7 out of 5 stars
114
$24.99Chewy Price
($0.79/fl oz)
Promo, New Customers Only: Spend $49+, Get $20 eGift Card

Our ratings

Ease of Application

4.5/5
Great

Effectiveness

4.5/5
Great

Ingredients

4.6/5
Excellent

Longevity

4.7/5
Excellent

Is this fly spray right for my pet?

Top Ingredients

Cypermethrin 0.15%, Pyrethrins 0.20%, Piperonyl Butoxide 1.60%, Butoxypolypropylene Glycol 5.00%

Health Feature

Pest Control
6
Pyranha Aerosol Horse Insecticide Spray, 15-fl oz bottle
Pyranha Aerosol Horse Insecticide Spray, 15-fl oz bottle
Pyranha Aerosol Horse Insecticide Spray, 15-fl oz bottle

Pyranha Aerosol Horse Insecticide Spray, 15-fl oz bottle

Rated 4.8 out of 5 stars
52
$21.99Chewy Price
($1.47/fl oz)
Promo, New Customers Only: Spend $49+, Get $20 eGift Card

Our ratings

Ease of Application

4.7/5
Excellent

Effectiveness

4.8/5
Excellent

Ingredients

4.7/5
Excellent

Longevity

4.5/5
Great

Is this fly spray right for my pet?

Top Ingredient

Pyrethrin Based

Material

Aluminum, Metal

Health Feature

Pest Control
7
Absorbine Ultrashield Red Insecticide & Repellent Horse Spray, 128-fl oz bottle
Absorbine Ultrashield Red Insecticide & Repellent Horse Spray, 128-fl oz bottle
Absorbine Ultrashield Red Insecticide & Repellent Horse Spray, 128-fl oz bottle
Absorbine Ultrashield Red Insecticide & Repellent Horse Spray, 128-fl oz bottle
Absorbine Ultrashield Red Insecticide & Repellent Horse Spray, 128-fl oz bottle

Absorbine Ultrashield Red Insecticide & Repellent Horse Spray, 128-fl oz bottle

Rated 4.6 out of 5 stars
59
$60.89Chewy Price
($0.48/fl oz)
Promo, Spend $100, Get $30 eGift Card with code HAVEFUN

Our ratings

Ease of Application

4.5/5
Great

Effectiveness

4.5/5
Great

Ingredients

4.4/5
Great

Longevity

4.3/5
Great

Is this fly spray right for my pet?

Top Ingredients

Active Ingredients: Permethrin 0.9%, Tetramethrin 0.25%, Pyrethrins 0.025%, Cypermethrin 0.1%, Piperonyl Butoxide 1.0%

Health Feature

Pest Control
8
FORCE Opti-Force Sweat Resistant Fly Horse Spray, 1-gal bottle
FORCE Opti-Force Sweat Resistant Fly Horse Spray, 1-gal bottle
FORCE Opti-Force Sweat Resistant Fly Horse Spray, 1-gal bottle
FORCE Opti-Force Sweat Resistant Fly Horse Spray, 1-gal bottle
FORCE Opti-Force Sweat Resistant Fly Horse Spray, 1-gal bottle
FORCE Opti-Force Sweat Resistant Fly Horse Spray, 1-gal bottle
FORCE Opti-Force Sweat Resistant Fly Horse Spray, 1-gal bottle

FORCE Opti-Force Sweat Resistant Fly Horse Spray, 1-gal bottle

Rated 4.9 out of 5 stars
20
$68.99Chewy Price
($68.99/gl)
Promo, Spend $100, Get $30 eGift Card with code HAVEFUN

Our ratings

Ease of Application

4.7/5
Excellent

Effectiveness

4.8/5
Excellent

Ingredients

4.3/5
Great

Longevity

4.7/5
Excellent

Is this fly spray right for my pet?

Lifestage

All Lifestages, Adult

Top Ingredients

Cypermethrin, Cas #52315-07-8 1.00 % Other Ingredients: 99.00 %

Health Feature

Pest Control
9
Farnam Bronco e Citronella Scented Equine Fly Spray, 1-gal bottle
Farnam Bronco e Citronella Scented Equine Fly Spray, 1-gal bottle
Farnam Bronco e Citronella Scented Equine Fly Spray, 1-gal bottle
Farnam Bronco e Citronella Scented Equine Fly Spray, 1-gal bottle
Farnam Bronco e Citronella Scented Equine Fly Spray, 1-gal bottle
Farnam Bronco e Citronella Scented Equine Fly Spray, 1-gal bottle
Farnam Bronco e Citronella Scented Equine Fly Spray, 1-gal bottle
Farnam Bronco e Citronella Scented Equine Fly Spray, 1-gal bottle
Farnam Bronco e Citronella Scented Equine Fly Spray, 1-gal bottle

Farnam Bronco e Citronella Scented Equine Fly Spray, 1-gal bottle

Rated 4.6 out of 5 stars
161
$27.99Chewy Price
($27.99/gl)
Promo, Spend $100, Get $30 eGift Card with code HAVEFUN

Our ratings

Ease of Application

4.4/5
Great

Effectiveness

4.4/5
Great

Ingredients

4.3/5
Great

Longevity

4.2/5
Great

Is this fly spray right for my pet?

Top Ingredients

Prallethrin, Permethrin, Piperonyl Butoxide, Methyl, cyclopent

Health Feature

Itch & Redness Remedy
10
UltraCruz Natural Horse Fly & Tick Spray, 1-gal bottle
UltraCruz Natural Horse Fly & Tick Spray, 1-gal bottle
UltraCruz Natural Horse Fly & Tick Spray, 1-gal bottle
UltraCruz Natural Horse Fly & Tick Spray, 1-gal bottle

UltraCruz Natural Horse Fly & Tick Spray, 1-gal bottle

Rated 4 out of 5 stars
57
$24.95Chewy Price
($24.95/gl)
Promo, New Customers Only: Spend $49+, Get $20 eGift Card

Our ratings

Ease of Application

4.0/5
Great

Effectiveness

4.1/5
Great

Ingredients

4.0/5
Great

Longevity

3.8/5
Good

Is this fly spray right for my pet?

Lifestage

All Lifestages, Adult

Top Ingredients

Water, Sodium lauryl sulfate, Glycerin, Geraniol, Clove Extract

Health Feature

Pest Control