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Farnam SimpliFly Feed Through Fly Control for Horses, Breaks the Fly Life Cycle, Pellets, 10 Pound Bucket, 160 Day Supply for One Horse

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$75.99

$ 33 .99 $33.99

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About this item

  • PREVENTS DEVELOPMENT of house flies and stable flies in the manure of treated horses.
  • HIGHLY PALATABLE PELLETS made with alfalfa. Simply add to your horse’s feed.
  • CONTAINS NO ORGANOPHOSPHATES and passes through your horse without being absorbed. Only affects your horse’s manure.
  • FORMULATED WITH LARVASTOP and diflubenzuron as the main active ingredients to prevent the formation of flies.
  • ECONOMIC SIZING OPTIONS AVAILABLE in 3.75 lb. 60-day supply, 10 lb. 160-day supply, 20 lb. 320-day supply and 50 lb. 800-day supply.
  • A 10 lb bucket lasts 160 days for one horse!
  • Larvastop, containing fly growth regulator Dimilin, breaks the fly life cycle
  • Reduces fly populations by 97-100%.
  • Highly palatable - just add to feed


When flies are a menace in your stable, it’s time to target them at their source – your horse’s manure. If not treated, the manure from one horse has the potential to produce tens of thousands of flies in a single day. Introduce SimpliFly Feed-Thru Fly Control to your horse’s daily diet, and suddenly you’re turning the favorite breeding grounds of stable and house flies into a No Fly Zone. When fed daily, SimpliFly Feed-Thru Fly Control breaks the fly lifecycle by preventing fly larvae from developing in a horse’s manure. This fly growth regulator is made without organophosphates and will pass through your horse’s body unabsorbed. The feed will instead excrete the active ingredient diflubenzuron into their manure, preventing it from being a viable breeding ground. This product can be effectively started anytime during fly season, but for best results, beginning daily feeding in early spring before fly season is optimal. SimpliFly Feed-Thru Fly Control is a highly palatable mixture that your horse will readily eat and easily mixes in with their daily feed. As part of an integrated, pest management program, you can see a significant decline in this season’s fly population. Keep your stable happy and target the fly problem at its source with SimpliFly Feed-Thru Fly Control. Bugs don’t fly with Farnam, your partner in horse care.


Robert Lang
Reviewed in the United States on August 27, 2024
Very effective. I’ve never had fewer flies. I’ve saved the cost in fly spray
Kimberly Dali
Reviewed in the United States on June 23, 2024
I've been using this product for 4 years and love it. It really does seem to reduce the amount of flies. you need start using right at the end of Winter and continue until the next Winter starts.
Bailey B.
Reviewed in the United States on January 26, 2024
I used to use Solitude fly pellets but they are so expensive so I decided to try this brand and to be honest I haven’t noticed a change, it works just as well. I mix it in with my horse feed everyday and if you notice the flies on your horse poop will decrease, mine doesn’t have but maybe 1-2 on it. It works in the poop because that’s where the fly larva grows and this stops this from happening so the flys can’t produce more flys from your horse poop. It’s a must have in our barn!
Duane E. Stone
Reviewed in the United States on April 18, 2024
I have been using this for 2 years. I have it on subscription. The reason for my review is to ask a question. Why is it no longer available for me to purchase. After my March delivery, the product states that it cannot be delivered to my address. No explanation. I live in Maryland.
chris johnson
Reviewed in the United States on August 16, 2023
So we started Simplifly in Spring then added the Natural Fly Extermiator bags all around the horses and donkeys then wrapped poles and all of our trash cans in Giant Fly glue tray rolls by Catchmaster. Not sure which is working the best but I know all 3 together is amazing. Today was 100 and not but one fly while I was mucking out the horses. We have both horses and donkeys and we are all so amazed. The fly paper has to be changed almost every day, but once under control maybe every few days. The paper catches so many flies it's the craziest think. We are all so happy at the ranch.
JoAnn
Reviewed in the United States on October 1, 2023
I live in CA in a very hot area. Its usual in the 90's in the summer. This is the first time I have tried this product and I love it. My least favorite thing to do in the morning was to put fly spray all over my horse. It takes up to much time. Now I just ad one scoop of SimpliFly to his grain every day and it kept the flies away just as it advertises. I started using it in April and now its Sept 30th and I still have a little bit left.
SFD-Horses
Reviewed in the United States on September 10, 2022
Before I heard about this we had FLY’S! Lots of fly’s. We tried everything. Sprays, sheets, boots, oils, fly predators. Nothing would control them. This stuff works! I start in April and feed through October with September being a taper off month. I stopped once for a month and I started seeing so many baby flys.This is pricy, and every horse in the barn needs to be on it to work, so if you have 4 horses or less it’s really worth it. My 2 draft horses use 2 1/2 of the big buckets every season, so for me. The expense is less then bottles and bottles of fly sprays.
Victoria Jenest
Reviewed in the United States on July 27, 2019
My first season trying this, having started in April. It's easy to use, the horses like it, and the fly population is noticeably down from years past. Nothing out there will totally eradicate flies - you'll always have them if you have horses. So it's nice to find affordable products that help control them, and Simplifly certainly does. However, the company's claim of 97-100% effectiveness is ridiculous; I would estimate that it's around 50-75% for us. But to me that's enough to make it worthwhile, especially in conjunction with other methods (fly bags, masks, occasional spraying). Our two horses went through a ten pound tub in about 2.5 months, so at a cost of $70 this stuff is approximately 15 dollars per horse/per month. For us, the reduction in flies easily justifies the cost of this product.
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