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
685
$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

4.5/5
Great

Ingredients

4.4/5
Great

Longevity

4.3/5
Great

Is this fly spray right for my pet?

Top Ingredients

Active Ingredients: Pyrethrins, Piperonyl Butoxide & Butoxpolypropylene Glycol

Farm Animal Type

Horse

Health Feature

Pest Control
2
Farnam Swat Dog & Horse Fly Repellent, 7-fl oz tub
Farnam Swat Dog & Horse Fly Repellent, 7-fl oz tub
Farnam Swat Dog & Horse Fly Repellent, 7-fl oz tub
Farnam Swat Dog & Horse Fly Repellent, 7-fl oz tub
Farnam Swat Dog & Horse Fly Repellent, 7-fl oz tub
Farnam Swat Dog & Horse Fly Repellent, 7-fl oz tub
Farnam Swat Dog & Horse Fly Repellent, 7-fl oz tub
Farnam Swat Dog & Horse Fly Repellent, 7-fl oz tub
Farnam Swat Dog & Horse Fly Repellent, 7-fl oz tub

Farnam Swat Dog & Horse Fly Repellent, 7-fl oz tub

Rated 4.8 out of 5 stars
245
$14.97Chewy Price
($2.14/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

4.4/5
Great

Is this fly spray right for my pet?

Top Ingredients

Piperonyl Butoxide, Butylcarbityl, 6-Propylpiperonyl, Ether And Related Compounds, Pyrethrins

Farm Animal Type

Horse

Health Feature

Skin & Coat Health
3
Equiderma Herbal Horse Spray, 1-gal
Equiderma Herbal Horse Spray, 1-gal

Equiderma Herbal Horse Spray, 1-gal

Rated 4.9 out of 5 stars
65
$89.99Chewy Price
($89.99/gl)
Promo, New Customers Only: Spend $49+, Get $20 eGift Card

Our ratings

Ease of Application

4.8/5
Excellent

Effectiveness

4.7/5
Excellent

Ingredients

4.8/5
Excellent

Longevity

4.8/5
Excellent

Is this fly spray right for my pet?

Top Ingredients

Neem Oil, Neem Leaf, Citronella Oil, Eucalyptus Oil, Lavandin Grosso Oil

Farm Animal Type

Horse

Health Feature

Skin & Coat Health
4
Martin's Permethrin 36.8% SFR Concentrate Termiticide & Insecticide, Pint

Martin's Permethrin 36.8% SFR Concentrate Termiticide & Insecticide, Pint

Rated 4.7 out of 5 stars
145
$31.90Chewy Price
Promo, New Customers Only: Spend $49+, Get $20 eGift Card

Our ratings

Ease of Application

4.5/5
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 Ingredient

36.8% Permethrin

Farm Animal Type

Cattle, Pig, Poultry, Horse

Health Feature

Pest Control
5
Absorbine UltraShield EX Insecticide, Kills & Repels Horse Fly Spray Refill, 32-fl oz bottle
Absorbine UltraShield EX Insecticide, Kills & Repels Horse Fly Spray Refill, 32-fl oz bottle
Absorbine UltraShield EX Insecticide, Kills & Repels Horse Fly Spray Refill, 32-fl oz bottle
Absorbine UltraShield EX Insecticide, Kills & Repels Horse Fly Spray Refill, 32-fl oz bottle
Absorbine UltraShield EX Insecticide, Kills & Repels Horse Fly Spray Refill, 32-fl oz bottle
Absorbine UltraShield EX Insecticide, Kills & Repels Horse Fly Spray Refill, 32-fl oz bottle

Absorbine UltraShield EX Insecticide, Kills & Repels Horse Fly Spray Refill, 32-fl oz bottle

Rated 4.7 out of 5 stars
179
$26.24Chewy Price
($0.82/fl oz)
Promo, New Customers Only: Spend $49+, Get $20 eGift Card

Our ratings

Ease of Application

4.4/5
Great

Effectiveness

4.5/5
Great

Ingredients

4.4/5
Great

Longevity

4.4/5
Great

Is this fly spray right for my pet?

Top Ingredients

Permethrin, Pyrethrins, Piperonyl Butoxide

Farm Animal Type

Horse

Health Feature

Pest Control
6
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
222
$28.95Chewy Price
($1.61/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

4.4/5
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%

Farm Animal Type

Horse

Health Feature

Pest Control
7
Starbar Quikstrike Fly Scatter Bait, 1-lb can
Starbar Quikstrike Fly Scatter Bait, 1-lb can
Starbar Quikstrike Fly Scatter Bait, 1-lb can
Starbar Quikstrike Fly Scatter Bait, 1-lb can
Starbar Quikstrike Fly Scatter Bait, 1-lb can

Starbar Quikstrike Fly Scatter Bait, 1-lb can

Rated 4.3 out of 5 stars
150
$11.99Chewy Price
($11.99/lb)
Promo, New Customers Only: Spend $49+, Get $20 eGift Card

Our ratings

Ease of Application

4.4/5
Great

Effectiveness

4.1/5
Great

Ingredients

4.3/5
Great

Longevity

4.0/5
Great

Is this fly spray right for my pet?

Top Ingredients

Active Ingredient: Dinotefuran 0.50%, Z-9 Triscosene 0.04%

Farm Animal Type

Horse

Health Feature

Pest Control
8
Shires Equestrian Products Fine Mesh Horse Fly Mask with Ears, Black, Full
Shires Equestrian Products Fine Mesh Horse Fly Mask with Ears, Black, Full
Shires Equestrian Products Fine Mesh Horse Fly Mask with Ears, Black, Full

Our ratings

Ease of Application

4.3/5
Great

Effectiveness

4.3/5
Great

Ingredients

4.5/5
Great

Longevity

4.6/5
Excellent

Is this fly spray right for my pet?

Material

Vinyl / PVC, Plastic

Pattern

Solid

Farm Animal Type

Horse

Closure Type

Velcro
9
Farnam Swat Original Fly Repellent Ointment Horse Supplement, 7-oz tub
Farnam Swat Original Fly Repellent Ointment Horse Supplement, 7-oz tub
Farnam Swat Original Fly Repellent Ointment Horse Supplement, 7-oz tub
Farnam Swat Original Fly Repellent Ointment Horse Supplement, 7-oz tub
Farnam Swat Original Fly Repellent Ointment Horse Supplement, 7-oz tub
Farnam Swat Original Fly Repellent Ointment Horse Supplement, 7-oz tub
Farnam Swat Original Fly Repellent Ointment Horse Supplement, 7-oz tub
Farnam Swat Original Fly Repellent Ointment Horse Supplement, 7-oz tub
Farnam Swat Original Fly Repellent Ointment Horse Supplement, 7-oz tub

Farnam Swat Original Fly Repellent Ointment Horse Supplement, 7-oz tub

Rated 4.8 out of 5 stars
115
$12.68Chewy Price
($1.82/oz)
Promo, New Customers Only: Spend $49+, Get $20 eGift Card

Our ratings

Ease of Application

4.3/5
Great

Effectiveness

4.6/5
Excellent

Ingredients

4.6/5
Excellent

Longevity

4.3/5
Great

Is this fly spray right for my pet?

Top Ingredients

Piperonyl Butoxide (Butylcarbityl, 6-Propylpiperonyl, Ether And Related Compounds), Pyrethrins, Di-N-Propyl Isocinchomeronate

Farm Animal Type

Horse

Health Feature

Itch & Redness Remedy
10
Horse Health Products Horse Dewormer, 0.21-oz tube
Horse Health Products Horse Dewormer, 0.21-oz tube
Horse Health Products Horse Dewormer, 0.21-oz tube
Horse Health Products Horse Dewormer, 0.21-oz tube
Horse Health Products Horse Dewormer, 0.21-oz tube

Horse Health Products Horse Dewormer, 0.21-oz tube

Rated 4.9 out of 5 stars
39
$12.95Chewy Price
($61.67/oz)
Promo, New Customers Only: Spend $49+, Get $20 eGift Card

Our ratings

Ease of Application

4.8/5
Excellent

Effectiveness

4.6/5
Excellent

Ingredients

4.6/5
Excellent

Longevity

4.6/5
Excellent

Is this fly spray right for my pet?

Top Ingredient

ivermectin

Farm Animal Type

Horse

Health Feature

Digestive Health