---
product_id: 386706341
title: "Farnam Simpli-Fly Feed-Thru Flies Control"
brand: "farnam"
price: "3977 kr"
currency: DKK
in_stock: false
reviews_count: 5
url: https://www.desertcart.dk/products/386706341-farnam-simpli-fly-feed-thru-flies-control
store_origin: DK
region: Denmark
---

# Insect growth regulator larvastop 97-100% fly reduction Highly palatable feed pellets Farnam Simpli-Fly Feed-Thru Flies Control

**Brand:** farnam
**Price:** 3977 kr
**Availability:** ❌ Out of Stock

## Summary

> 🦄 Keep your stable fly-free and your horse happy — because every pro knows, comfort is king!

## Quick Answers

- **What is this?** Farnam Simpli-Fly Feed-Thru Flies Control by farnam
- **How much does it cost?** 3977 kr with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/386706341-farnam-simpli-fly-feed-thru-flies-control)

## Best For

- farnam enthusiasts

## Why This Product

- Trusted farnam brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Break the Fly Cycle:** Larvastop disrupts fly development for lasting control
- • **Vet-Trusted Formula:** Contains diflubenzuron, a proven insect growth regulator
- • **Long-Lasting Protection:** One 10 lb bucket covers 160 days for one horse
- • **Near-Total Fly Reduction:** Reduces house and stable flies by up to 100%
- • **Effortless Feed Integration:** Simply add pellets to your horse’s daily feed

## Overview

Farnam Simpli-Fly Feed-Thru Fly Control is a highly effective pellet feed additive designed to prevent the development of house and stable flies by breaking their life cycle with larvastop and diflubenzuron. Trusted by horse owners for reducing fly populations by up to 100%, it offers a palatable, easy-to-use solution that provides up to 160 days of continuous protection per 10-pound bucket.

## Description

Prevents development of House and stable flies in Contains larvastop, an insect growth regulator that breaks the fly life cycle manure when horses are continually treated.

Review: 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.
Review: 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.

## Features

- Prevents development of House and stable flies in manure when horses are continually treated
- Reduces fly populations by 97 100percent
- Highly palatable pellet
- Just add to horse's feed
- Contains larvastop, an insect growth regulator that breaks the fly life cycle
- Contains diflubenzuron

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000I1PIEO |
| Age Range Description | Horse |
| Brand Name | Farnam |
| Customer Reviews | 4.6 4.6 out of 5 stars (858) |
| Global Trade Identification Number | 00086621001657 |
| Included Components | Farnam SimpliFly Feed Through Fly Control for Horses, Breaks the Fly Life Cycle, Pellets, 10 Pound Bucket, 160 Day Supply for One Horse |
| Item Form | Pellets |
| Item Weight | 4.54 Kilograms |
| Manufacturer | Farnam |
| Manufacturer Part Number | 100515883 |
| Model Number | 100515883 |
| Scent Name | Unscented |
| Target Species | Horse |
| UPC | 086621001657 086621047938 |
| Unit Count | 158.7 Ounce |
| Volume | 4.54 Kilograms |

## Product Details

- **Brand:** Farnam
- **Item form:** Pellets
- **Item volume:** 4.54 Kilograms
- **Item weight:** 4.54 Kilograms
- **Scent:** Unscented

## Images

![Farnam Simpli-Fly Feed-Thru Flies Control - Image 1](https://m.media-amazon.com/images/I/71ebZMz2nAL.jpg)
![Farnam Simpli-Fly Feed-Thru Flies Control - Image 2](https://m.media-amazon.com/images/I/715iQiI2HZL.jpg)
![Farnam Simpli-Fly Feed-Thru Flies Control - Image 3](https://m.media-amazon.com/images/I/71C3T2ls5IL.jpg)
![Farnam Simpli-Fly Feed-Thru Flies Control - Image 4](https://m.media-amazon.com/images/I/91YQP95b7WL.jpg)
![Farnam Simpli-Fly Feed-Thru Flies Control - Image 5](https://m.media-amazon.com/images/I/819hQzQc4iL.jpg)

## Questions & Answers

**Q: How long does 10 pds last one horse?**
A: 10 pounds will last about 4 to 5 months per horse.

**Q: how young of a foal can be fed this please?**
A: We recommend first consulting your vet. Simplifly should be fine for foals that are 300 lbs. or more.

**Q: Why can't this be shipped to calif.  Always ordered and now it says it can’t be shipped to calif.**
A: Must be some kind of new regulation, I was able to buy it the last time I ordered it.

**Q: Why not feed to "horses intended for slaughter?" Also...who raises horses intended for slaughter, anyway?**
A: correct if the horses are intended for slaughter and are supposed to be shipped from the  USA to Mexico for slaughter (horse slaughter is illegal in the USA) then these horses not only cannot have had certain vaccinations but they also cannot have been treated with various substances to prevent flies and worms. As to your question who raises horses for slaughter, plenty of 'breeders' in the USA do that but they would never admit to it. You can research for example the different registries for horses and draw your own conclusions.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by K***G on 16 January 2026*

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.

### ⭐⭐⭐⭐⭐ Review
*by W***N on 6 September 2025*

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.

### ⭐⭐⭐⭐⭐ Review
*by D***G on 13 August 2025*

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.

## Frequently Bought Together

- Farnam SimpliFly Feed Through Fly Control for Horses 10 lbs, 160 Day Supply, EPA Approved, Palatable Pellets, Prevents Stable Flies and Manure Breeding
- Farnam Equi-Spot, Horse Fly Control, Long-lasting Protection, 6 Applications, 12-Week Supply for One Horse
- Farnam Repel-X pe Concentrated Fly Spray for Horses, Just Add Water 16 Ounces

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*Product available on Desertcart Denmark*
*Store origin: DK*
*Last updated: 2026-04-24*