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Formula 707 MultiFly Feed-Thru Fly Control Pellets for Horses - Palatable & Safe Fly Population Reduction (10 lb Bag - 182 Servings)

  • Based on 1,359 reviews
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Availability: In Stock.
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Arrives Wednesday, Sep 9
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Size: 10 lb Bag


Features

  • EFFECTIVE - Contains active ingredient Novaluron, which is an Insect Growth Regulator. This new generation technology is 99.9% effective at breaking the fly life cycle to help eliminate the fly population in your barn.
  • SAFE - Unlike other brands, our active ingredient is not an organophosphate, and is completely safe for horses.
  • PALATABLE - Administer one serving of our alfalfa and wheat midd-based pellets to your horses daily with their feed.
  • AFFORDABLE - MultiFly is just as effective as other brands, at a lower daily cost to you.
  • AMERICAN COMPANY: We are proud to be an American company that has milled in-house in our own Colorado facility since 1946.

Description

Tired of only depending on fly traps, sprays, sheets, and masks? These methods only target adult flies. MultiFly Feed-Thru Fly Control for Horses works by stopping flies before they can bother anyone. The active ingredient, Novaluron, breaks the fly life cycle to stop the development of fly larvae into adult flies. MultiFly is made with Novaluron, which is an Insect Growth Regulator that is 99.9% effective at breaking the life cycle of house and stable flies in the manure of horses. One scoop per day to every horse in the barn will dramatically reduce the fly population. My dog eats manure. Will my dog be safe if he consumes manure when I am feeding MultiFly to my horses? We have many MultiFly customers with pets that like to eat manure. However, we are not able to make any claims regarding safety/efficacy for any other animal other than horses. Can I feed this to other species (cattle, goats, chickens, dogs, etc.)? Novaluron (active ingredient) has been tested in non-equines (e.g., cattle, goats, etc.), but we are not able to make any claims about safety/efficacy for any species other than equines. Please ask your veterinarian. Does MultiFly repel flies from my horse? No - MultiFly is ineffective towards existing adult flies. MultiFly is not a fly repellant - rather it is an Insect Growth Regulator that stops flies from reproducing in manure. How quickly will I start seeing results with MultiFly? Some of our customers start seeing results in as little as three days, but most people see significant results in two to four weeks, since that is around the average lifecycle of a fly. I have a smaller/larger than average horse, how much should I feed? For the average equine at 1100 lbs or less, feed 1 scoop daily. For especially small animals (e.g. 550 lbs or less) you may feed half a scoop. For equines over 1100 lbs, feed 2 scoops daily. Fly Deny Fly Spray Joint 6-in-1 Pellets Daily Essentials Sweat Resistant Fly Spray Provides long-lasting protection against flies, gnats, and mosquitoes. Six Joint Ingredients in One MSM, Glucosamine, College, Chondroitin, Bromelain, Green Lipped Mussel. Complete Multivitamin A comprehensive, complete multivitamin and mineral source for all horses. Flies, Gnats, and Mosquitoes Targets adult insects that are a nuisance to you and your horses. Green Lipped Mussel Can help support a healthy inflammatory response. Fills in Nutritional Gaps Daily Essentials fills in nutritional gaps where forage may be lacking.

Brand: Formula 707


Item Form: Pellet


Scent: Unscented


Item Weight: 10 pounds


Active Ingredients: Novaluron


Item Volume: 1.2 gallons


Unit Count: 1 Count


Color: Multicolored


Age Range (Description): All Life Stages


UPC:


Product Dimensions ‏ : ‎ 8 x 9.66 x 9.88 inches; 10 pounds


Item model number ‏ : ‎ 60310_FBA


Date First Available ‏ : ‎ June 17, 2021


Manufacturer ‏ : ‎ John Ewing Company- Pets


Best Sellers Rank: #2,201 in Pet Supplies (See Top 100 in Pet Supplies) #2 in Horse Fly Repellents


#2 in Horse Fly Repellents:


Customer Reviews: 4.6 4.6 out of 5 stars (1,359)


Brand Name: Formula 707


Unit Count: 1 Count


Age Range Description: All Life Stages


UPC: 765616603105


Included Components: As shown.


Manufacturer: John Ewing Company- Pets


Model Number: 60310_FBA


Manufacturer Part Number: 60310_FBA


Item Form: Pellet


Scent Name: Unscented


Target Species: Horse


Item Weight: 10 pounds


Volume: 1.2 gallons


Active Ingredients: Novaluron


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Sep 9

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Works well at reducing fly numbers
Size: 10 lb Bag
This stuff imo is the most effective at reducing flys around horses. Traps are good, spray helps keep the flys off horses, and feed thru reduces their numbers. I mix one level scoop in their feed and they eat it no problem. It looks to be made with alfalfa and the pellets are small. This feed thru works well and I will buy again. ... show more
Reviewed in the United States on July 27, 2026 by Danamatron

  • Expensive but effective
Size: 10 lb Bag
Been using for 3 months, not a nasty horse fly in sight. Last year they tormented our girls. Little black- colored flies still around their legs but that’s expected. Our 1100 pound fillies need 2 scoops per day. Wish it wasn't so expensive.
Reviewed in the United States on July 11, 2026 by Carole in Virginia

  • Works well.
Size: 10 lb Bag
Works wonders. Barn flies, stable flies and house flies. Gone. Done. Skedaddled. Gnats not so much but it doesn’t target gnats. The flies listed above bite. The gnats are annoying.
Reviewed in the United States on July 18, 2026 by Welder RN

  • Must have for horse owners
Size: 5 lb Bag
This supplement works better than anything I've tried before! 🤩 The horses have no problem eating it, it's a fly miracle! 🐴✨ #supplement #horses #flies #miracle
Reviewed in the United States on July 27, 2026 by Christy Grimm

  • It helps
Size: 10 lb Bag
It does help keep the flies down.
Reviewed in the United States on July 16, 2026 by Terri

  • It actually works!
Size: 5 lb Bag
I own 2 horses in SE Wyoming. I have a mountain of horse manure that resides 200 years downwind from my house. We get A LOT of flies. Typically, we start seeing flies in mid to late May. By July, we are being over-run. So, I thought I would give those fly predators a try. Those definitely reduced the total amount of flies but did not provide the relief I was hoping for $200 for the summer. And then I stumbled onto Formula 707. I should state that I began feeding 707 a few weeks before we started seeing flies. At the writing of this review, it is July 8th. I should be seeing swarms of flies by now. I do see flies but maybe one or two per week. It's like I don't even have horses this year. ... show more
Reviewed in the United States on July 8, 2026 by Chappy

  • This is great at killing the fly population
Size: 5 lb Bag
Been using this now 2 years in a row. Started feeding end.of March . As soon as I saw 1st fly. My barn is a fly free zone! You may see 1 or 2 flys bit thats it!.my farrier is also a happy camper when comes to our barn. I truly recommend this. Ww tried other feed through but none worked this well! Wish there was something that kills the May flys and deer flys that live in the trees and attack.you when your heading to the mailbox or trying to enjoy sitting by the pool since theres no poop for them to land on. ... show more
Reviewed in the United States on July 19, 2026 by Kay Burnett

  • Affordability and it works
Size: 5 lb Bag
This product 707. I wish I would’ve found it before is better than what I can buy a Tractor Supply or online and it’s less expensive for two horses and guess what it works. It works very well. It works better than the pricier products thank you 707.
Reviewed in the United States on July 20, 2026 by Cassandra

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