Formula 707 MultiFly Feed-Thru Fly Control Pellets for Horses – Palatable & Safe Fly Population Reduction (10 lb Bag – 182 Servings)
$65.99
Price: $65.99
(as of Oct 06, 2025 10:04:47 UTC – Details)
Product description
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Discover the Easiest Way to Get Rid of Flies at Your Barn
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.
Why does MultiFly work so well?
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.
Check out all Formula 707 has to offer!
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.
Package Dimensions : 14.88 x 11.02 x 3.11 inches; 10 Pounds
Date First Available : June 17, 2021
Manufacturer : John Ewing Company- Pets
ASIN : B0977HC7P5
Best Sellers Rank: #5,162 in Pet Supplies (See Top 100 in Pet Supplies) #4 in Horse Fly Repellents
Customer Reviews: 4.5 4.5 out of 5 stars 1,194 ratings var dpAcrHasRegisteredArcLinkClickAction; P.when(‘A’, ‘ready’).execute(function(A) { if (dpAcrHasRegisteredArcLinkClickAction !== true) { dpAcrHasRegisteredArcLinkClickAction = true; A.declarative( ‘acrLink-click-metrics’, ‘click’, { “allowLinkDefault”: true }, function (event) { if (window.ue) { ue.count(“acrLinkClickCount”, (ue.count(“acrLinkClickCount”) || 0) + 1); } } ); } }); P.when(‘A’, ‘cf’).execute(function(A) { A.declarative(‘acrStarsLink-click-metrics’, ‘click’, { “allowLinkDefault” : true }, function(event){ if(window.ue) { ue.count(“acrStarsLinkWithPopoverClickCount”, (ue.count(“acrStarsLinkWithPopoverClickCount”) || 0) + 1); } }); });
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.
MADE IN THE USA – All of our products are manufactured in our facility in Colorado, since 1946.
Customers say
Customers report that the fly control pellets effectively reduce fly populations by 80-90% and are palatable to horses. The product is easy to use, with horses eating it without issues, and customers find it affordable and of good quality. They appreciate that their horses are less stressed and more comfortable after using the product.
8 reviews for Formula 707 MultiFly Feed-Thru Fly Control Pellets for Horses – Palatable & Safe Fly Population Reduction (10 lb Bag – 182 Servings)
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Hazel –
It Works! Iâve Used it Two Years in a Row.
Iâve waited to write a review for this product until the weather was consistently warm (and flies were likely to go after my horses.)We began using this in February and it has worked incredibly well. It is now mid-June and we have some flies in the barn, but they are about 90 percent less than last year and they tend to congregate around the muck buckets instead of the horses.I have tried so many fly treatments (i.e. fly spray, fly masks, fly boots, permethrin, etc.). This product works. The key is to put the supplement in the feed about a month before flies will appear. If you wait until youâre under attack by flies, it wonât be as effective (we also used it at the end of last summer and the result wasnât as good as being proactive / starting early. It still helped but this year has been much better.My horses still wear fly boots, but we only put fly masks on when they are outside and the flies are going to find them anyway. The flies in the horse barn were intolerable last year and thatâs not the case at all this year. The horses get a few flies but nothing major. The product is outstanding.I highly recommend this product. It has helped reduce our fly population so nicely and the price isnât crazy. You honestly save money by purchasing this instead of using five other fly repellents to get to a lesser result. My two horses love the flavor and have no issues with this supplement.Thank you for solving our fly nightmare. 🙂
Jen –
âï¸âï¸âï¸âï¸âï¸ No More Flies. Period.
I honestly didnât expect this to work as well as it has, but wowâ707 MultiFly completely delivered. After just a couple of weeks, I noticed a huge difference. The most impressive part? There are literally no flies anywhere. None. Iâve tried so many sprays and traps over the years, and nothing has worked this effectively.Itâs simple to use and doesnât involve coating your horse in chemicals or dealing with messy applications. Just a daily scoop, and youâre done. I love that it works from the inside outâtargeting the problem at the source, not just temporarily pushing flies away.If youâre tired of the constant fly battle every summer, this is absolutely worth trying. I wonât go without it now.
Jessi K. –
Important player in fly control
I was nervous to do a feed through pellet with my horse but the flies get out of control so I decided to go for it. Iâve been using this product for about 5 months now because itâs important for feed through pellets to have time to build up in the system in order to be effective. The lack of flies in my barn is so noticeable that my farrier asked what I was doing for flies and he noticed I have considerably less than any barn he goes to. I am pleased with the effectiveness of these pellets and thereâs been no ill effects on either of my horses. Definitely worth the value.The best way to combat flies is a multifaceted approach:- Feed through pellets starting in early spring before the bugs start waking up. Just one scoop daily. Super easy.-Equi-spot every 2 weeks-Fly spray-Daily poop cleaning in the areas near or in barnsI live in buggy TN and this combination works wonders.
Triplediget –
Better than expected.
Much to my surprise.. This works amazingly well. I used to order fly preditors, which helped. This year I didn’t order in time so I gave this a try instead. Every morning I feed 1 scoop by hand,to each of my 3 horses. Flys are practically non existent in the barn. Definitely will go this route every year.
KAJR –
Unbelievable results
To say I was sceptical is an understatement, I was desperate for a solution to the flies in the stall and barn area. Using fly spray with chemicals on my horse wasn’t what I wanted to o tried natural spay… I was out there 3 or more times a day. My horse has a fly sheet and fly mask and he was still miserable. It was an unreasonable monsoon summer here in New Mexico. I did some research and found this product to be highly regarded be horse owners with great results.My horse had no problem eating the grain formula. He’s food driven! Within 2 days I noticed I wasn’t fighting as many flies when I went out to feed and water and clean the stall. Within 5 days it was very noticeable that the flies were significantly less. Mostly in the manure I needed to pick up. My horse is happier, not having to fight the flies to get to his grain bucket!It’s worth the money and… It works fast!
achilles –
Unbelievable results!
We have been using this product for 3 years. As winter keeps the flies under control, we take a break from November to mid-April. As the weather starts to warm up, we start this in mid-April. It has reduced the fly population by more than 80%. Recently, I visited a friend’s barn and was reminded how bad the flies can be when uncontrolled! I shared this product with my friend, and they plan to add to their daily regimen.
Melody –
Not for me
This product kind of works. I’m not 100% convinced because we also hang fly bags in the stalls. This definitely does NOT work on horseflies. I don’t think I will purchase this again.
360° Solutions –
Saved me from jumping off a cliff
I was sceptical at first after doing endless searches for something to control the flies. We have 15 acers with 3 horses and last year I was at my breaking point, the flies were winning. So I read something about 707 and decided to try it. My wife feeds the horses every morning the recommended amount in 3 buckets and the horses eat it all, so they are not put off by any weird tastes.I started to notice as I was knocking down the piles of manure in the pasture that normally I would see lots of tiny flies in these piles. Now as we roll into summer I have the say the flies are reduced – REALLY REDUCED! I am a believer in this stuff. We have had a we spring too this normally would have made the flies worse…Don’t get me wrong there are still flies but NOTHING like in years past. I just change to a Prime Subscription as I never want to run out of it.