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Fly Predators

Item #12493
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We're bringing you this product at the lowest price allowed by the manufacturer. That means this item isn't eligible for additional discounts or promotions.

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

The environmental solution to pesky flies!

Fly Predators are beneficial insects and the natural enemy of flies. These insects never bother humans or animals but feed on fly larvae to interrupt the breeding cycle of flies. Sprinkle on manure areas monthly to control fly populations. Up to 94% reduction in pest flies have been reported. Fly predators cannot be returned as they are living.

Favorite Features

  • Automatic delivery available for easy, convenient reapplication

Fly Predators will be drop shipped to you directly from Spalding Labs via the U.S. Postal Service.
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    SmartPak customers are some of the most conscientious animal owners around. We encourage you to share your experience with the products we sell to help fellow customers to make informed choices for their animals. We do not edit these reviews in any way - they are direct customer-to-customer communication. We do monitor reviews for positive and negative feedback, and use this feedback to improve our selection as well as sharing feedback with product manufacturers to help them improve their products. Please note that we recommend consulting your vet with serious health issues.

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    Fly Predators is rated 4.3261 out of 5 by 92.
    Rated 5 out of 5 by from Made me a believer Made me a believer. On the second month I notice a huge difference in the reduction of flies on our property. A friend was visiting and asked, how come I do not see any flies on your property? I told her about Fly Predators and what a great product it is. Now she is ordering them too. Definitely recommend this product....
    Date published: 2012-07-16
    Rated 5 out of 5 by from Best Natural Fly Contol We have been using the Fly Predators consistently for the last two years and have been very pleased with the results. While it is nearly impossible to totally eradicate flies on a horse farm, the Fly Predators have drastically reduced the fly population. I would recommend the Fly Predators and the auto-ship program with SmartPak makes it a breeze to maintain coverage of the farm.
    Date published: 2012-07-02
    Rated 4 out of 5 by from Fly predators FP's do seem to work, but not as well as I'd hoped. I have 3 horses and a Shetland so I buy the 5,000 bugs for 1-5 horses. I order them once a month with my supplements but I feel like they die off in closer to 3 weeks, not 4. I may try getting them more often and see if that helps. However, my horses live out 24/7 with run-ins so the manure is spread all over 17 acres, I don't know if it's just too hard for the little guys to disperse. They do seem to help, but not quite as dramatic of a difference as I'd hoped.
    Date published: 2012-06-26
    Rated 5 out of 5 by from Forgot to order this spring For the first time in 5 years, I didn't have horses standing in the pasture in the spring and I didn't order the fly predators. I borrowed 2 horses to trail ride and in a week the flies were VICIOUS! Boy, I learned my lesson. Fly predators really work. I ordered them, but it is tough to catch up once the season has started... but still absolutely worth it. I used to buy only a bottle or 2 of fly spray per summer.
    Date published: 2012-06-14
    Rated 5 out of 5 by from Give them a chance I have been using the Fly Predators for 7 years now. The first year I thought maybe I saw a difference. Kept them for a 2nd year and wow. A local breeder came over to see one of her horses that was in training and was amazed that we were still able to have the horses in the pasture. It was 11:30 am. she said all there horses were in by 10:00 because the flies were so bad. You don't notice the difference until you go somewhere that doesn't use the Fly Predators. give them a chance. They do work. We have 17 horses and 3 dogs at the farm.
    Date published: 2012-06-07
    Rated 2 out of 5 by from Not working for me :( I don't know if it's because I didn't get my first fly predators until after the first flies were around or if it's just a horrible fly season here after the long drought. I got 10.000 the first order and 5000 the 2 orders after that, one per month, seems like I get no break from the flies. I only have 2 horses. Despite a covered manure compost bin, twice a day cleanup of manure, several traps, stink bags fill up in a week and I have 8 up. I'm receiving another shipment this week but I'm starting to think that I've only been wasting my money. Not saying they can't work, just not working for me, at least not this year. Next year I'll be sure to have the first load coming immediately after the last freeze!
    Date published: 2012-05-24
    Rated 4 out of 5 by from Death to Flies! In about two weeks, we were down to only the occasional fly. Very good, but difficult to spread.
    Date published: 2012-04-13
    Rated 5 out of 5 by from Perfect Way of Naturally Dealing with Flies I have used these for over a year, I get them shipped right when I see the first fly of the year. They are great little bugs and they really make a difference!
    Date published: 2012-02-18
    Rated 3 out of 5 by from They mostly escaped the package prior to arrival/r The package allowed them to escape prior to release in the designated release area. This was my first shippment of them, but it seems there were more in the mailbox/car than released in the barn:(
    Date published: 2011-07-05
    Rated 4 out of 5 by from Natural fly control I have been using fly preditors for three years now. This year, because of the very wet spring, the flys are just terrible in my area. The FP are keeping my barn fly levels to a minimum. Thanks for a natural solution! Pesticides are not my preference so this products fits my expectations.
    Date published: 2011-06-28
    Rated 4 out of 5 by from Fly predators We have been using it only for two weeks and we already see a difference. We will keep going and see what happens.
    Date published: 2011-06-22
    Rated 5 out of 5 by from Fly Predators The shipment arrived in a timely manner. They are hatching and have been released around the barn and fields. I have used this product before, and look forward to a reduction in the fly population here. I am very satisfied.
    Date published: 2011-06-15
    Rated 5 out of 5 by from Really do the job This is the second summer that I have used Fly Predators. They did a great job last year; I noticed a real difference. I made sure that I stayed on auto delivery again this year.
    Date published: 2011-06-08
    Rated 5 out of 5 by from Terrific product I spread these around my house because my horse was my lawn mower...It cut down the fly population by 90 % . It took several days but I am sold on this product even if its just for house flies...
    Date published: 2011-06-08
    Rated 5 out of 5 by from Awesome product Fly predators really work and are very easy to spread. I love having the option to have them delivered on a schedule. I would highly recommend them.
    Date published: 2011-06-06
    Rated 5 out of 5 by from No Flies - NONE! I started with fly predators at the end of April, with a double dose, then proceeded as recommended with my monthly SmartPak shipment, and so far I have NO flies. My barn and even all areas in my paddock where my horses typically mess are completely free of flies. It's really nice to not have biting and face flies for my horses--and is just as nice not having the buggers around my house either! The real test will be in August, which is typically buggy for northern New Mexico, but I plan on doubling my early July and August orders to cope with it. Also, the cost savings compared to using fly sprays is huge.
    Date published: 2011-06-06
    Date published: 2011-06-03
    Rated 5 out of 5 by from Works like a dream I use the fly predators each year and have significantly less flies than before. I like to have pestacide free products when I can and these predators are completely natural and work like a dream! Saves hundreds on fly spray each summer.
    Date published: 2011-05-30
    Rated 4 out of 5 by from This was my first time to order and I haven't had enough time to see if they work. We have had a very cool spring and I am not sure they survived. I will probably order more later in the year.
    Date published: 2011-05-25
    Rated 5 out of 5 by from Fl and No flys I used this last year and was my first year without battleing flys THANKS
    Date published: 2011-05-17
    Rated 5 out of 5 by from Fly Predators: Environmentally Friendly Magic The small smelly bag filled with brown cocoons and pine shavings sure deliver an easier life for all of us in and around the barn yard. Once you see a dozen or so of the little ant like bugs crawling around in the clear plastic pouch, get ready for release. You simply peel apart the pouch and start shaking these tikes around the manure pile and other rotting organic areas and -- et voila! -- in only a few weeks you will notice that you don't have nearly as many flies in you and your animals' lives. No icky fly traps or sprays are necessary in my barn any more. Who knew? Oh, and I've noticed that cluster flies as well as house flies have also been significantly reduced in and around my house. Needless to say, it's now always exciting when the next bag rolls into the mailbox. My four year old son and I battle it out for the "shake & release" as we know how great these teeny wasps work. These creatures are for real. No Sea Monkey scam here. Try the Fly Predators. You won't regret it. In due time, they're worth they're weight in black gold.
    Date published: 2011-05-14
    Rated 5 out of 5 by from seems to be working !!!! Only have just started using this product but it does appear that there are no NEW flies! Crossing my fingers!
    Date published: 2011-05-10
    Rated 5 out of 5 by from Great Product Since using Fly Predators I have noticed a significant reduction of flies with my horses. The horses seem to be much more comfortable and less irritated by flies. I look forward to my next shipment and continued control of the fly population at my barn. My dogs are happier too!
    Date published: 2011-05-01
    Rated 5 out of 5 by from Bugs to keep to bugs away I love the Fly Predators, with them I true have no fly problems at my barn. Last year I discontinued my fly predators in the fall thinking because there was no bugs that I didn't need them anymore, boy was I wrong, the flies came back w/ a vengeance once I stopped the predators. So my advice is to keep it going until there is snow on the ground.
    Date published: 2011-04-30
    Rated 5 out of 5 by from First time! We bought a new farm (in Florida) and we only have one neighbor who also happens to use the fly predators. So we thought we'd put them out on our property as well to make sure we had good coverage between the two of us. They came in the mail promptly, and we waited for them to start moving per the directions... then we spread them out, covered them up, and we'll do it again soon to make sure the fly larvae are taken care of... as much as that is possible in Florida... now if we can just get the mosquitos!
    Date published: 2011-03-03
    Rated 5 out of 5 by from GREAT pest control! We LOVE this product at our barn!!Before Predators, we would spray the horses daily, and they still seemed tortured by the flies. Now there are so few flies (great for horses and humans alike).My only suggestion if you keep free range chickens at your barn: make sure to follow package instructions and hang the Predator larvae instead of putting them on the ground.Thank you Spalding Labs for creating this horse and Earth friendly product!
    Date published: 2011-01-10
    Rated 5 out of 5 by from Worked for us! I bought this for use in my 5 acre pasture w/3 horses. We put our predators out in the middle of summer when we moved to a new home. I noticed a decrease in flies after a few weeks. I will be purchasing the predators again this spring, as I do believe they help control the fly population.
    Date published: 2011-01-06
    Rated 5 out of 5 by from Best product for flys I have ever purchased. I have gone from hearing the flys buz when I walked out my back door, to no sounds and no flys!!~!
    Date published: 2010-07-31
    Rated 5 out of 5 by from Shoo Fly! Over the years we have added more animals to our place and we are concerned with being good neighbors. Fly predators keep the flies to a minimum without the use of chemicals. That keeps us, our animals and our neighbors happy. We wouldn't start the summer without them.We also appreciate the excellent customer service from Smart Pack.
    Date published: 2010-06-30
    Rated 4 out of 5 by from Highly Recommend Been using this product for 2 years and really see a difference in the number of flies that we have in the barn. Safe,and easy to use. We house about 25-35 horses.
    Date published: 2010-06-13
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