SimpliFly Feed Through Fly Control for Horses, 3.75 lbs, 60 Day Supply, EPA-Approved Pellets to Prevent Stable Flies in Manure – Safe, Palatable Daily Supplement for Fly Population Control

It works. I’ll use it again next summer! I had a 95% reduction of flies with this and weekly spray down in my coops.

Works on house flies and stable flies. Works really well too. Gnats and horse flies nope. Gnats still are in abundance though maybe have declined but seems they are persistent. Quite possibly has knocked down the gnats. This is all I really see covering the horse manure so I’m hopeful that several season/ years of this will steadily drop their numbers. Summer of 2025 has been our first try of this. And we started late in the season to see a noticeable difference in the house and stable flies. Will probably stop feeding come first frost in NC here and stock up for spring and summer. Highly recommend.

Awesome product. 2 weeks after we started using it we noticed the flies were gone. Saves a lot of money and hassle of using fly spray daily that never really worked. For us it reduced our on farm fly population by 95%. It's wonderful be able to be outside around the horses and yard, and don't forget the barn without the flies attacking us all the time. It also pays for itself by not buying gallon after gallon of fly spray.

Essential for my Horse care needs. It definitely works to keep the fly population down. I will always buy this for my horse.

I cuts down on the fly population and is well tolerated by my horse. Cancelling subscription because product arrived and the lid had come off the tub. The product was loose in the box. I poured the pellets back into the tub and replaced the lid but it will not stay on so I will use the previous tub for a container. In the process, some of the product was lost and I am guessing the postoffice got to clean some up, too, as the tub is not as full as usual. I do not have time to send this shipment back. I will say that I have been buying this product for years and this has never happened before.

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.

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Easy to toss in feed. Horse dosent snub his nose at it. I didn't notice any difference with the flies. Maybe I just didn't use it long enough.