Homemade Fly Spray Recipes for Horses

It probably doesn’t come as much of a shock,but I’ve been making the switch from store-bought, pre-packaged products to homemade and all-natural products in many aspects of my daily living–from making my own natural laundry soap, dish detergent, and household cleaners to using only natural, whole foods and cooking everything from scratch (actually,this may be a shock for those of you that know me personally!)  Sure, it may require more work (especially in the cooking department), but I’m saving money and feeling much better about my reducing my impact on the environment.

I’m also making the transition to using more natural products for my horses and other animals.  This year, I plan to make my own fly spray.  I’ve done this before, but not with natural products.  I’ve put together a list of homemade fly spray recipes for horses–and most of them are all-natural.


Skin so Soft Recipe

  • 6 caps full of Avon’s Skin so Soft
  • 1 cup white vinegar
  • a good squirt of Ivory liquid soap
  • mix with about 20 ounces of water


Citrus Insect Repellant


Easy Fly Spray

(Above recipes borrowed/ adapted from Moniteau Saddle Club)


Natural Fly Spray (from The Prairie Homestead)


Eucalyptus Oil Fly Spray (from The Cowboy Way)


Dr. Mary Brennan’s Recipe (from EquiSearch)


* An important note about the citronella oil–you need to purchase 100% pure citronella oil from a health food store or online.  Do NOT buy citronella oil from hardware or other stores that is meant for lanterns, tiki torches, etc., as it is flammable and not safe to put on your horse’s skin.

Of course, be careful not to spray any of these fly sprays into your horse’s eyes and remember, just because a product is ‘natural’ doesn’t mean your horse can’t have a reaction to it–although it’s much less likely to occur than with products containing chemicals.  A fly mask is always a good idea for keeping flies out of horse’s eyes and ears.  I tend to use these with my older horses (which the flies seem to bother more.)


fly mask


If you have your own homemade fly spray for horses that you’ve used with success, please feel free to add it in the comments section.

If you’re not the do-it-yourself type of person, you can always buy a natural fly spray like the one from Green Horse Organics.  See this post to learn more about Nancy and her products.


28 thoughts on “Homemade Fly Spray Recipes for Horses

      1. Right now, I’m using the ‘Natural Fly Spray’ with apple cider vinegar and citronella oil. It seems to work pretty well!

  1. I’ve always used a version of the Skin So Soft recipe that also includes apple cider vinegar, water and citronella or eucalyptis essential oil and had really good luck with it against just about everything. It’s a 1:1:1 mixture. 1 cup sss, 1 cup apple cider vinegar, 1 cup water, 5-10 drops essential oil. Shake well before use.

      1. I have a question about 1 of the recipes it calls for light mineral oil and I don’t want to use mineral oil on my horse. I was wondering if I can substitute it with something else

        1. I’m guessing the mineral oil is to help the fly spray stick to the horse better. You could probably replace it with Avon Skin so Soft or for a less oily version, maybe white vinegar or water. I haven’t tried that particular recipe though. . .

  2. Mineral oil????

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  3. Just because something is natural does not mean it is safe. Mineral oil is derived from crude oil and one of THE MOST toxic ingredients on the planet. Avon Skin so Soft is full of chemicals and harmful preservatives. Ivory liquid soap is for dishes, not horses.

    The skin is the largest organ in the body and absorbs directly into the blood supply whatever you put on it. These products/ingredients are not safe for humans or horses.

    Essential oil blends are the only safe choice you have listed here, but still not the best. They are powerful elements that should not be applied to any animal unless by a trained professional animal aromatherapist.

    I would recommend a solution of pure aloe vera juice and neem oil.

    1. Thanks for sharing, Sierra. I would still rather use the diluted essential oil fly spray recipes than a traditional chemical fly spray though. I use many of the oils on myself as well and have had great results.

    2. Though you comments were a bit harsh…not sure if that’s what you were going for or not…I have to agree. I wouldn’t put most of those ingredients on myself or my animals. My repellent of choice this year happens to be neem oil. I wouldn’t have thought of mixing with aloe. Thanks for the suggestion. Will it mix and spray on, or will it be too thick for that. How do you recommend applying it, and what ratio gets the right consistancy? Thanks again for speaking up.

  4. I have a hard time finding a farrier in my area, let alone a trained professional animal aromatherapist. But I will definitely try the neem oil!

  5. I make my fly spray by the gallon in a plastic milk container. Use 2 cups white vinegar, 4 tbs citronella oil, 1 oz of 1 % permethrin (the kill ingredient in most fly sprays) and fill the balance of the container with water. The permethrin provides the quick knock down and is available at most any local farm store.

    This makes an inexpensive fly spray that is just as effective as the commercial sprays which cost $60+ per gallon. Don’t know why anyone would buy those… Like you should, I cover my horses eyes with a small towel if I am spraying around their head and ears.

  6. I am using 50/50 water and Pine Sol. Spraying on myself and works great to keep the flys away. But….is it safe to use on my horses?

    1. Hi Kathy–are you talking about Pine Sol cleaning solution? I have no idea what’s in that, but I’m not sure I’d want to spray it on me or my horse! Do you know the ingredients?

  7. I have a fly spray system in my barn

    Have used Eco Exempt and Emulsifier

    What is a good mix for a fly spray system going into stalls?

    1. Hi Jackie–that is a good question that I’m afraid I don’t know the answer to. Maybe someone else will comment though. Something that I’m using instead of a spray though is the fly predators from Spalding. You should check them out if you haven’t heard of them.

  8. My favorite fly repellent is all thrown in the blender at once

    leftover and dying geraniums –about 2 cups or 20 drops geranium oil
    2 cloves of garlic or garlic granules
    2 tablespoons neem oil-human grade
    1 cup white vinegar
    2 cups water
    Blend like mad for about 4 minutes, strain and put in spray bottle.
    Apply with a sponge around the eyes. Lasts 2 days but that’s about how long the natural stuff lasts. This is cheap and easy if you have a bunch of flowers in your yard like I do. Marigolds are good too since they contain pyrethrin.

  9. I didnt do any exact mesurements. Basically what i did was a cup of water, some gel baby oil (with aloe and something else) eucalyptus oil, some tea tree oil, white vinagear and mint water! Hopefully its good!

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