Answer
Jul 07, 2025 - 07:17 AM
Yes, Permethrin 10% can be used on horses, but it's crucial to understand how to use it safely and effectively. It is a common active ingredient in many equine fly sprays and insecticides.
Here are the key points:
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Dilution is Key: Permethrin 10% is a concentrate. You must dilute it significantly before applying it to horses. The specific dilution ratio will be detailed on the product label and can vary slightly between brands. For example, some labels suggest diluting 2 oz in 1 gallon of water for spot treatment or even less for full-body sprays. Never apply it undiluted directly to an animal.
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Application Method: It's typically applied as a spray or wipe-on. It is not designed or recommended as a pour-on for horses.
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Target Pests: Permethrin 10% is effective against a wide range of common equine pests, including:
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Flies (horn flies, face flies, stable flies, horse flies)
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Mosquitoes
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Lice
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Ticks (including deer ticks that can carry Lyme disease)
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Mites
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Read the Label Thoroughly: This is the most important instruction. Different brands of Permethrin 10% may have slightly different instructions, precautions. Always follow the specific product label you are using.
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Precautions:
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Foals: Some labels state "Do not use on foals under three (3) months of age."
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Skin Sensitivity: While generally safe for horses when diluted correctly, some horses may experience skin sensitivity or irritation. If this occurs, bathe the horse with a mild shampoo and rinse thoroughly. Contact your veterinarian if symptoms persist.
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Environmental Impact: Permethrin is toxic to aquatic organisms (fish, etc.) and beneficial insects like honeybees. Avoid contaminating water sources.
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Human Contact: While low in toxicity to humans when used as directed, avoid direct contact with skin and eyes. Wear gloves and eye protection during mixing and application.
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In summary, Permethrin 10% is a viable option for insect control on horses when used strictly according to the manufacturer's label instructions, particularly regarding dilution and application methods.
