--- product_id: 16597782 title: "Farnam SimpliFly Feed-Thru Fly Control for Horses, 3.75 lb, 60 Day Supply | Daily Supplement,EPA Approved Palatable Pellets, Prevents Stable Flies in Manure and Break and Prevents the Fly Life Cycle" brand: "farnam" price: "$144.38" currency: USD in_stock: true url: https://www.desertcart.us/products/16597782-farnam-simplifly-feed-thru-fly-control-for-horses-3-75 store_origin: US region: United States of America --- # palatable alfalfa pellets 60-day fly control EPA-approved safe formula Farnam SimpliFly Feed-Thru Fly Control for Horses, 3.75 lb, 60 Day Supply | Daily Supplement,EPA Approved Palatable Pellets, Prevents Stable Flies in Manure and Break and Prevents the Fly Life Cycle **Brand:** farnam **Price:** $144.38 **Availability:** ✅ In Stock ## Summary > 🦄 Keep your stable fly-free and your horse happy — because every manager deserves a pest-free pasture! ## Quick Answers - **What is this?** Farnam SimpliFly Feed-Thru Fly Control for Horses, 3.75 lb, 60 Day Supply | Daily Supplement,EPA Approved Palatable Pellets, Prevents Stable Flies in Manure and Break and Prevents the Fly Life Cycle by farnam - **How much does it cost?** $144.38 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/16597782-farnam-simplifly-feed-thru-fly-control-for-horses-3-75) ## 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 - • **Season-Long Protection:** Start early spring feeding to maintain a fly-free environment through fall. - • **Convenient & Reliable Packaging:** 3.75 lb bucket offers a 60-day supply for hassle-free daily feeding. - • **Integrated Pest Management Ready:** Pairs perfectly with fly sprays and masks for total barn defense. - • **Break the Fly Cycle at the Source:** Stops fly larvae development directly in manure for unmatched barn fly control. - • **Safe & Palatable Daily Supplement:** Alfalfa-based pellets your horse will actually eat, suitable for all breeds. ## Overview Farnam SimpliFly Feed-Thru Fly Control is a 3.75 lb alfalfa-based pellet supplement designed to disrupt the fly life cycle by preventing larvae in manure from maturing into adult flies. EPA-approved and safe for daily use across all horse breeds, it offers a 60-day supply of reliable, season-long fly control when fed consistently. Ideal for integrated pest management, it complements topical sprays and physical barriers to maintain a comfortable, fly-free environment in barns, stalls, and pastures. ## Description The most effective way to control flies around horses is to stop them at the source before they ever become adult flies. Left untreated, manure from a single horse can produce thousands of flies in a single day. Farnam SimpliFly Feed-Through Fly Control is a palatable alfalfa-based pellet designed to provide reliable fly control for horses by interrupting the fly life cycle where flies breed. The active ingredient diflubenzuron passes through the horse unabsorbed and deposits in manure, preventing fly larvae from developing into adult flies. Because SimpliFly works in manure rather than on the horse, it provides barn fly control and stable fly reduction without sprays, wipes, or topical treatments. Safe for daily use in all horse breeds and formulated without organophosphates, SimpliFly Feed Thru Fly Control mixes easily into your horse’s regular feed. For best results, begin feeding in early spring before flies appear and continue through summer and fall to support consistent horse fly control in barns, stalls, paddocks, and pastures. For complete fly management, combine feed-through fly control with topical fly sprays, fly masks, and other barn fly control methods to help protect horses throughout fly season. ## Features - Feed-Through Fly Control for Horses: SimpliFly breaks and prevents the fly life cycle in manure, helping reduce stable fly populations and providing reliable fly control for horses in barns, stalls, and pastures - Stops Flies Where they Breed: The active ingredient diflubenzuron passes through the horse unabsorbed and works directly in manure to prevent fly larvae from developing into adult flies - Safe for Daily Use in All Horse Breeds: Add palatable alfalfa-based pellets to your horse's daily feed for consistent fly control in stalls, pastures, paddocks and dry lots - Season-Long Fly Population Reduction: Begin feeding in early spring before flies appear and continue through summer and fall to support ongoing barn fly control and stable fly prevention - Feed Thru Fly Control Supplement: SimpliFly works best alongside topical fly sprays and physical barriers like fly masks for integrated, whole-barn pest management - Farnam Equine Supplement in 3.75 lb (60-Day Supply) and 10 lb (160-Day Supply) Sizes: SimpliFly feed-through fly supplement is packaged in convenient buckets for easy daily feeding and tack room storage ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B000HHM4TQ | | ASIN | B000HHM4TQ | | Active Ingredients | SimpliFly® with LarvaStop™ contains 0.24% Diflubenzuron (Dimilin®*) (CAS# 35367-38-5). Feed ingredients: Wheat Middlings, Dehydrated Alfalfa Meal, Calcium Carbonate, Sodium Chloride, Calcium Propionate (preservative). | | Age Range Description | All Life Stages | | Allergen Information | Yam Free | | Best Sellers Rank | #9,915 in Pet Supplies ( See Top 100 in Pet Supplies ) #14 in Horse Fly Repellents | | Brand Name | Farnam | | Customer Reviews | 4.6 4.6 out of 5 stars (1,442) | | Date First Available | October 15, 2006 | | Department | Pets | | Global Trade Identification Number | 00086621001640 | | Included Components | Farnam SimpliFly Feed-Thru Fly Control Brown 3.75 lb Bucket | | Item Form | Pellet | | Item Type Name | Farnam SimpliFly Feed-Thru Fly Control | | Item Weight | 3.8 pounds | | Item model number | 100515881 | | Manufacturer | Central Garden & Pet | | Manufacturer | Central Garden & Pet | | Manufacturer Part Number | 100515881 | | Model Number | 100515881 | | Pet Type | Horse | | Product Dimensions | 5 x 6.5 x 7.5 inches; 3.75 pounds | | Recommended Uses For Product | Fly control in horses through feed supplementation, part of integrated pest management program | | Scent Name | Unscented | | Target Species | Horse | | UPC | 086621001640 | | Unit Count | 60 Ounce | | Volume | 0.45 gallons | | Warranty Description | Call with comments or questions: 800-234-2269 | ## Product Details - **Age Range (Description):** All Life Stages - **Allergen Information:** Yam Free - **Brand:** Farnam - **Color:** Brown - **Item Form:** Pellet - **Item Volume:** 0.45 gallons - **Item Weight:** 3.8 pounds - **Scent:** Unscented - **Unit Count:** 60 Ounce ## Images ![Farnam SimpliFly Feed-Thru Fly Control for Horses, 3.75 lb, 60 Day Supply | Daily Supplement,EPA Approved Palatable Pellets, Prevents Stable Flies in Manure and Break and Prevents the Fly Life Cycle - Image 1](https://m.media-amazon.com/images/I/71o00lzoHOL.jpg) ![Farnam SimpliFly Feed-Thru Fly Control for Horses, 3.75 lb, 60 Day Supply | Daily Supplement,EPA Approved Palatable Pellets, Prevents Stable Flies in Manure and Break and Prevents the Fly Life Cycle - Image 2](https://m.media-amazon.com/images/I/710UH7BfaiL.jpg) ![Farnam SimpliFly Feed-Thru Fly Control for Horses, 3.75 lb, 60 Day Supply | Daily Supplement,EPA Approved Palatable Pellets, Prevents Stable Flies in Manure and Break and Prevents the Fly Life Cycle - Image 3](https://m.media-amazon.com/images/I/71fu3rL4DvL.jpg) ![Farnam SimpliFly Feed-Thru Fly Control for Horses, 3.75 lb, 60 Day Supply | Daily Supplement,EPA Approved Palatable Pellets, Prevents Stable Flies in Manure and Break and Prevents the Fly Life Cycle - Image 4](https://m.media-amazon.com/images/I/71w4r9vzUaL.jpg) ![Farnam SimpliFly Feed-Thru Fly Control for Horses, 3.75 lb, 60 Day Supply | Daily Supplement,EPA Approved Palatable Pellets, Prevents Stable Flies in Manure and Break and Prevents the Fly Life Cycle - Image 5](https://m.media-amazon.com/images/I/812zMDv5HyL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: does it works for cows?** A: I don’t think so. Cows are ruminates and horses aren’t. **Q: Why won't it ship to my California address? What am I missing? I just bought one at the local Tractor Supply...here in Cali...** A: I'm not sure what the answer is, but I have noticed there are numerous items I have ordered that are not shipped to California for different reasons. Sorry I could not give you a more definite reason. **Q: I lost the little measuring cup. Can someone tell me exactly how much it holds when it is full?** A: It looks to be about 1/8 ounce. **Q: Hi, do you have a product called ralone duo top or some other product to cattle weight gain?** A: no ## Frequently Bought Together - Farnam SimpliFly Feed Through Fly Control for Horses, Breaks the Fly Life Cycle, Pellets, 3.75 Pound Bucket, 60 Day Supply for One Horse - Farnam Repel-X pe Concentrated Fly Spray for Horses, Just Add Water 16 Ounces - Farnam Repel-X Ready-To-Use Fly Spray, Insecticide And Repellent For Horses And Dogs, 32 Fluid Ounces, 1 Quart Bottle With Trigger Sprayer --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.us/products/16597782-farnam-simplifly-feed-thru-fly-control-for-horses-3-75](https://www.desertcart.us/products/16597782-farnam-simplifly-feed-thru-fly-control-for-horses-3-75) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-08-14*