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Bronco® Gold Fly Spray

Farnam Companies, Inc.
- Item #19691
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As riders and online shoppers, we know it can be tough to buy a new bridle or pair of boots without trying them on. That's why we moved the fitting room to your living room (or barn)! From breeches to blankets, if you or your horse can try it on, you can return it, free! Just use the pre-paid return label included in your order within 60 days from the purchase date. And of course, please make sure the item is in like-new condition with original packaging (we said 'fitting room', not 'war room'!).

Why We Love This

Bronco Gold Fly Spray protects your horse from nasty flies while giving him a healthy shine! Repels and kills stable flies, horn flies, house flies, face flies, horse flies, deer flies, mosquitoes and gnats.

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Favorite Features
  • Repels many different kinds of insects
  • Acts as a grooming aid & coat conditioner
  • Comes in a 32 oz spray bottle or a gallon


Pyrethrins - 0.1%
Piperonyal Butoxide, Technical - 1.0%
Butoxypolypropelene Glycol - 7.5%
Other ingredients - 91.4%

  • Pyrethrin: Natural extracts made from chrysanthemum flowers that affect an insects' nervous system.
  • Piperonyl Butoxide, Technical: A synergist for pyrethrins, which means it helps the pyrethrin to be more effective.
  • Butoxypolypropelene Glycol: This is a repellent. This synergist supports the overall activity of the actives in the formulation.
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    Bronco® Gold Fly Spray is rated 4.0 out of 5 by 25.
    Rated 2 out of 5 by from Not the best Bought this a while ago and my horse horse had a strange reaction to it. His skin has started to flake almost like its drying out which is odd because it is supposed to be conditioning spray which explains the gross oily residue it leaves.
    Date published: 2017-10-22
    Rated 5 out of 5 by from Fantastic! This by far is the best fly spray I have ever used. It sprays on like an oil but leaves no oil residue.
    Date published: 2017-07-26
    Rated 4 out of 5 by from Works! This fly spray works for my horse. He has allergies to many of the sprays -
    Date published: 2017-07-22
    Rated 4 out of 5 by from Good fly spray Here in Florida flies get used to fly spray you use all the time. This product is good when you try to mix it in a little.
    Date published: 2017-06-14
    Rated 1 out of 5 by from Do not buy Bronco Gold oil based I had three different horses react violently to this fly spray. I have had horses for many years and have never had this happen. It gave them welts and blisters. I had a filly get so physically sick that we thought she had colic as well as having an extreme reaction to this fly spray. My show horse could not be ridden for almost 3 weeks and is still 4 weeks later recovering from the welts and blisters that literally had tiny pus pockets in 6 inch diameter circles that hair came off of. When it happened to my warmblood at PEC Sporthorses in Wilton, CA came up with weird welts and blisters a day after I put the flyspray on him - (I put the fly spray on one of my horses there but not the other the other horse is a Cremello and oil based fly sprays make the dirt come up.) After the welts and weird patches of tiny pus outbreaks/blisters I was apprehensive to think it was the fly spray but just in case the horse that had the reaction was sensitive to it (12 yr old I have had since born not sensitive to anything) -- I took the bottle home to my horses that are at my house (because I didn't think it was the flyspray). Several weeks later, the flies were obnoxious as it got hot again and I groomed and used the Farnam Bronco Gold on two of three of my horses at home. The one that I did not flyspray is a mini that nothing happened to. The other two horses reacted horribly!! It was put on Weds Sept 7th afternoon. I had a farrier scheduled Thursday Sept 8 at 9am. When he got there - I mentioned that my old mare had a weird lump on her tummy and it had looked like she itched it raw. I also mentioned my filly (3 yr old) seemed to be itching like crazy. As he was trimming one horse, we proceeded to watch the filly itch her side raw -- I ran and gave her a flake of hay to get her to stop. We both observed that it was odd. When the farrier left, it was about 11:00am. I fed them lunch at about noon. Then noticed about 4 pm that again - itching was dramatic. I went out to see that my older mare had welts running all over huge areas about a 1/2 inch rise swollen up off her. She had blisters similar to my horse at an equestrian facility in odd circles about 6 inch diameter with opened and dried pus pockets/blisters? My filly had huge welts smaller raised off her but she was acting bizarre. She would lay down and just look miserable then get up move around. I called my vet immediately. She asked me a series of questions which included did I use a different brand of fly spray -- when I remembered my other horse had reacted weird -- it all clicked..... She had me immediately give both horses baths with shampoo that was "soft" -- the filly felt better immediately but was still acting bizarre -- she was so happy after the bath - would run buck....go get a bite to eat then lay down. Because I know my vet well, she worked with me with phone calls. Anyone else would have had at least a $500 vet bill for this. I have continued to give them baths. My show horse could not go in the shows planned. This was bad. I have had horses for 40 yrs. I am not one to "freak out" about things. My filly's legs have sores/bumps all over in the areas that I applied the fly spray to the most. My warmblood is still growing hair in the areas reacting with the weird small pus outbreaks. My older mare has two big areas that are healing from breaking open. Please take this product off of the market - inform your buyers to pull it off the shelf.
    Date published: 2016-09-12
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