10 Best Fly Sprays & Repellents for Cows 2025: According to Reviews | Chewy

The 10 Best Fly Sprays & Repellents for Cows

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How we created this fly sprays & repellent list

We leveraged input from our veterinarians and artificial intelligence to identify key considerations to help you find the best fly sprays & repellents for cow.
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 & repellents for cows.

Key fly sprays & repellent considerations

Ease of application

Effectiveness

Long-lasting protection

Non-toxic ingredients

1
CSI Bifen I/T Insecticide Concentrate, 1-qt bottle

CSI Bifen I/T Insecticide Concentrate, 1-qt bottle

Rated 4.7 out of 5 stars
47
$34.31Chewy Price
Promo, Spend $100, Get $30 eGift Card with code HAVEFUN

Our ratings

Ease of application

4.3/5
Great

Effectiveness

4.2/5
Great

Long-lasting protection

4.2/5
Great

Non-toxic ingredients

4.1/5
Great

Is this fly sprays & repellent right for my pet?

Top Ingredient

7.9% Bifenthrin

Farm Animal Type

Cattle, Poultry

Health Feature

Pest Control
2
Martin's Viper Home & Garden Farm Animal Insect Dust, 4-lb bag

Martin's Viper Home & Garden Farm Animal Insect Dust, 4-lb bag

Rated 4.7 out of 5 stars
19
$9.99Chewy Price
($2.50/lb)
Promo, Spend $100, Get $30 eGift Card with code HAVEFUN

Our ratings

Ease of application

4.7/5
Excellent

Effectiveness

4.6/5
Excellent

Long-lasting protection

4.3/5
Great

Non-toxic ingredients

4.1/5
Great

Is this fly sprays & repellent right for my pet?

Top Ingredient

0.25% Permethrin

Farm Animal Type

Cattle, Poultry, Pig

Health Feature

Pest Control
3
Martin's Pen & Poultry Chicken & Roost Insecticide Spray, 32-fl oz

Martin's Pen & Poultry Chicken & Roost Insecticide Spray, 32-fl oz

Rated 4.4 out of 5 stars
47
$10.99Chewy Price
($0.35/fl oz)
Promo, Spend $100, Get $30 eGift Card with code HAVEFUN

Our ratings

Ease of application

4.3/5
Great

Effectiveness

4.4/5
Great

Long-lasting protection

4.2/5
Great

Non-toxic ingredients

3.8/5
Good

Is this fly sprays & repellent right for my pet?

Top Ingredient

0.50% Permethrin

Farm Animal Type

Cattle

Health Feature

Pest Control
4
Absorbine Flys-X Ready To Use Horse & Livestock Insecticide, 32-fl oz bottle
Absorbine Flys-X Ready To Use Horse & Livestock Insecticide, 32-fl oz bottle
Absorbine Flys-X Ready To Use Horse & Livestock Insecticide, 32-fl oz bottle
Absorbine Flys-X Ready To Use Horse & Livestock Insecticide, 32-fl oz bottle

Absorbine Flys-X Ready To Use Horse & Livestock Insecticide, 32-fl oz bottle

Rated 4.4 out of 5 stars
24
$11.01Chewy Price
($0.35/fl oz)
Promo, New Customers Only: Spend $49+, Get $20 eGift Card

Our ratings

Ease of application

4.5/5
Great

Effectiveness

4.2/5
Great

Long-lasting protection

4.1/5
Great

Non-toxic ingredients

4.6/5
Excellent

Is this fly sprays & repellent right for my pet?

Top Ingredients

Pyrethrins 0.1%, Piperonyl Butoxide 1.0%, Other Ingredients: 98.9%

Farm Animal Type

Cattle, Goat, Llama & Alpaca, Poultry...

Health Feature

Pest Control
5
Absorbine FLYS-X Natural Fly Repellent Dog & Livestock Spray, 32-fl oz bottle
Absorbine FLYS-X Natural Fly Repellent Dog & Livestock Spray, 32-fl oz bottle
Absorbine FLYS-X Natural Fly Repellent Dog & Livestock Spray, 32-fl oz bottle
Absorbine FLYS-X Natural Fly Repellent Dog & Livestock Spray, 32-fl oz bottle

Absorbine FLYS-X Natural Fly Repellent Dog & Livestock Spray, 32-fl oz bottle

Rated 4.1 out of 5 stars
27
$14.99Chewy Price
($0.47/fl oz)
Promo, Spend $100, Get $30 eGift Card with code HAVEFUN

Our ratings

Ease of application

3.8/5
Good

Effectiveness

4.2/5
Great

Long-lasting protection

4.2/5
Great

Non-toxic ingredients

4.1/5
Great

Is this fly sprays & repellent right for my pet?

Top Ingredients

Thyme Oil, Cedar Oil, Lemongrass Oil, Rosemary Oil, Citronella Oil

Farm Animal Type

Rabbit, Cattle, Pig, Poultry...

Health Feature

Pest Control
6
Elanco QuickBayt Farm Animal Fly Bait, 35-lb
Elanco QuickBayt Farm Animal Fly Bait, 35-lb

Elanco QuickBayt Farm Animal Fly Bait, 35-lb

Rated 4.8 out of 5 stars
4
$239.86Chewy Price
($6.86/lb)

Our ratings

Ease of application

4.7/5
Excellent

Effectiveness

4.5/5
Great

Long-lasting protection

4.7/5
Excellent

Non-toxic ingredients

4.7/5
Excellent

Is this fly sprays & repellent right for my pet?

Top Ingredient

Imidacloprid 0.5%; Z-9-Tricosene 0.1%; Other ingredients 99.4%

Farm Animal Type

Cattle, Pig, Goat, Horse...
7
Martin's Insect Growth Regulator, 4-fl oz bottle

Martin's Insect Growth Regulator, 4-fl oz bottle

Rated 4.8 out of 5 stars
8
$19.99Chewy Price
($5.00/fl oz)
Promo, Spend $100, Get $30 eGift Card with code HAVEFUN

Our ratings

Ease of application

4.0/5
Great

Effectiveness

4.3/5
Great

Long-lasting protection

4.3/5
Great

Non-toxic ingredients

3.8/5
Good

Is this fly sprays & repellent right for my pet?

Top Ingredient

1.3% Pyriproxyfen

Farm Animal Type

Cattle, Poultry

Health Feature

Pest Control
8
CSI Vector-Ban Plus Insecticide Concentrate, 64-fl oz

CSI Vector-Ban Plus Insecticide Concentrate, 64-fl oz

Rated 4.7 out of 5 stars
3
$114.99Chewy Price
($1.80/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

Long-lasting protection

4.5/5
Great

Non-toxic ingredients

4.5/5
Great

Is this fly sprays & repellent right for my pet?

Top Ingredients

10% Permethrin, 10% Piperonyl Butoxide

Farm Animal Type

Cattle, Pig, Poultry

Health Feature

Pest Control
9
CSI Cyzmic CS Micro-Encapsulated Insecticide Concentrate, 8-fl oz bottle

CSI Cyzmic CS Micro-Encapsulated Insecticide Concentrate, 8-fl oz bottle

Rated 5 out of 5 stars
2
$34.50Chewy Price
($4.32/fl oz)
Promo, New Customers Only: Spend $49+, Get $20 eGift Card

Our ratings

Ease of application

4.7/5
Excellent

Effectiveness

4.7/5
Excellent

Long-lasting protection

4.7/5
Excellent

Non-toxic ingredients

4.7/5
Excellent

Is this fly sprays & repellent right for my pet?

Top Ingredient

9.7% Lambda-Cyhalothrin

Farm Animal Type

Cattle, Poultry

Health Feature

Pest Control
10
Elanco CyLence Pour-On Cattle Insecticide, 16-fl oz

Elanco CyLence Pour-On Cattle Insecticide, 16-fl oz

Rated 4.7 out of 5 stars
3
$25.99Chewy Price
($1.63/fl oz)
Promo, Spend $100, Get $30 eGift Card with code HAVEFUN

Our ratings

Ease of application

4.6/5
Excellent

Effectiveness

4.6/5
Excellent

Long-lasting protection

4.6/5
Excellent

Non-toxic ingredients

4.3/5
Great

Is this fly sprays & repellent right for my pet?

Top Ingredients

Cyfluthrin 1%, Other Ingredients 99%

Farm Animal Type

Cattle