--- product_id: 51099407 title: "Black Flag(R) Flying Insect Killer3" brand: "black flag" price: "£100.23" currency: GBP in_stock: true reviews_count: 8 url: https://www.desertcart.co.uk/products/51099407-black-flag-r-flying-insect-killer3 store_origin: GB region: United Kingdom --- # Up to 12 weeks residual effect Kills on contact Indoor & outdoor use Black Flag(R) Flying Insect Killer3 **Brand:** black flag **Price:** £100.23 **Availability:** ✅ In Stock ## Summary > 🚫🐝 Stop bugs before they buzz—stay fly-free, all season long! ## Quick Answers - **What is this?** Black Flag(R) Flying Insect Killer3 by black flag - **How much does it cost?** £100.23 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/51099407-black-flag-r-flying-insect-killer3) ## Best For - black flag enthusiasts ## Why This Product - Trusted black flag brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Fresh Scent Formula:** Eliminates pests without the harsh chemical odor—keeps your space inviting - • **Broad-Spectrum Power:** Targets houseflies, fruit flies, mosquitoes, wasps, and more for total control - • **Long-Lasting Defense:** Keeps killing bugs landing on treated surfaces for up to 12 weeks ⏳ - • **Versatile Application:** Effective both indoors and outdoors—spray surfaces or space with ease 🏠 - • **Instant Bug Annihilation:** Strikes flying insects dead on contact for immediate relief ⚡ ## Overview Black Flag Flying Insect Killer is a powerful aerosol spray designed to kill a wide range of flying insects on contact. Suitable for both indoor and outdoor use, it offers up to 12 weeks of residual protection on treated surfaces, making it an essential tool for maintaining a pest-free environment with a fresh scent. ## Description Black Flag Flying Insect Killer kills fast – plus, it kills bugs landing on treated surfaces up to 12 weeks (excluding mosquitoes, wasps, hornets and yellowjackets). This formula is effective against houseflies, fruit flies, mosquitoes, wasps, hornets, yellowjackets, gnats, skipper flies and small flying moths and can be used both indoors and outdoors. Contains a clean, fresh scent. Indoors, use as a surface spray on window sills, window and door frames and other indoor surfaces where listed insects may land. You may also use as a space spray: Close all doors and windows, and spray upward into the center of the room with a slow, sweeping motion. For an average room, spray 5 to 10 seconds, moving toward the door. Outdoors, allow the fog to drift over the treatment area. Direct the spray toward bushes or grass from at least 4 to 6 ft away. Pay special attention to breeding areas, like garbage cans and compost piles. For best results, spray when the air is calm and allow a few minutes for the product to take effect. ## Features - KILLS FLYING INSECTS: Controls houseflies, fruit flies, mosquitoes and other listed insects. - USE INDOORS OR OUTDOORS: Use as a surface spray or space spray. - KILLS FAST: Controls listed insects on contact. - KILLS UP TO 12 WEEKS: Keeps killing bugs landing on treated surfaces (excluding mosquitoes, wasps, hornets and yellowjackets). ## Product Details - **Item Form:** Spray - **Brand:** Black Flag - **Target Species:** Insects - **Global Trade Identification Number:** 10891549110766 ## Images ![Black Flag(R) Flying Insect Killer3 - Image 1](https://m.media-amazon.com/images/I/71Xd14gEXoL.jpg) ## Available Options This product comes in different **Style** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ The best flying bug spray available. *by D***N on June 18, 2019* Living on a farm with many mulberry trees, the flies have been so bad we didn't want to go outside. I tried 3 different fly sprays and none of them worked very well. I picked up a can of Black Flag and sprayed it around the outside of the house, the fly population thinned out real fast. 2 days later there only a couple of flies around. This is the best fly and bug spray I have ever used. I found it on Amazon and ordered a case of it. Now we can go outside and enjoy the outdoors again. Also removed all of the mulberry trees to keep the flies from coming back next year. ### ⭐⭐⭐⭐⭐ See It Work *by N***S on August 1, 2025* Easy to use and you can see dead flies so you know it works perfectly. Make sure if spraying inside to have a window open while applying tho. ### ⭐⭐⭐⭐ Works most of the time *by M***J on October 3, 2019* Most of the time it kills mosquitoes in our garage, but sometimes not as good. Overall it works pretty good though. I would recommend it since it works as good as other brands but much cheaper. ## Frequently Bought Together - Black Flag Flying Insect Killer 18 Ounces, Aerosol Bug SprayAdditional Product Name: Black Flag Flying Insect Killer 18 Ounces, Aerosol Bug Spray 12 pack - Black Flag Fly Stick, Trap Houseflies and Flying Insects, Pack of 6 --- ## 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.co.uk/products/51099407-black-flag-r-flying-insect-killer3](https://www.desertcart.co.uk/products/51099407-black-flag-r-flying-insect-killer3) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-05-25*