--- product_id: 186565660 title: "Formula C+ Cockroach Killer Spray 5L - Maximum Strength Treatment & Control - with Free Trigger Hose Sprayer" brand: "pest expert" price: "€ 92.58" currency: EUR in_stock: true reviews_count: 8 category: "Pest Expert" url: https://www.desertcart.nl/products/186565660-formula-c-cockroach-killer-spray-5l-maximum-strength-treatment-control store_origin: NL region: Netherlands --- # Fast-acting knockdown Triple active ingredients with natural pyrethrum 12-week residual protection Formula C+ Cockroach Killer Spray 5L - Maximum Strength Treatment & Control - with Free Trigger Hose Sprayer **Brand:** pest expert **Price:** € 92.58 **Availability:** ✅ In Stock ## Summary > 🚫🐜 Dominate your space with the ultimate cockroach annihilator! ## Quick Answers - **What is this?** Formula C+ Cockroach Killer Spray 5L - Maximum Strength Treatment & Control - with Free Trigger Hose Sprayer by pest expert - **How much does it cost?** € 92.58 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/186565660-formula-c-cockroach-killer-spray-5l-maximum-strength-treatment-control) ## Best For - pest expert enthusiasts ## Why This Product - Trusted pest expert brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Massive Coverage:** One 5L bottle treats up to 250m² — the most cost-effective solution for large spaces. - • **Long-Lasting Defense:** Protects treated areas for up to 12 weeks, keeping cockroaches at bay long after application. - • **Unmatched Power Combo:** Triple active ingredients including insect growth regulator for total lifecycle disruption. - • **Safe & Clean Application:** Water-based, low-odour, and non-staining formula ideal for homes and businesses. - • **Rapid Results, Zero Regrowth:** Kills on contact and prevents new cockroach generations from emerging. ## Overview Pest Expert Formula C+ is a professional-grade, 5L cockroach spray featuring a powerful triple active ingredient formula including an insect growth regulator and natural pyrethrum extract. It delivers fast knockdown and up to 12 weeks of residual protection over 250m², all in a low-odour, non-staining, water-based spray perfect for homes and businesses seeking effective, long-lasting cockroach control. ## Description Pest Expert Formula 'C+' Cockroach Spray is a fast-acting insecticide with a long-lasting residual that maintains cockroach control. Pest Expert Formula 'C+' is a highly-effective insecticidal cockroach spray that offers both fast-acting and long-lasting cockroach control. The most powerful cockroach killer available to the amateur market, as well as achieving a rapid knockdown it also leaves a protective residue that continues to kill cockroaches for up to 12 weeks after application. Formula 'C+' is low-odour and free from solvents, so it is perfectly suitable for use in homes with children and/or pets, provided they are kept out of the area being treated until all surfaces are dry (2-3 hours). As market leaders, our latest innovative formulation incorporates two additional active ingredients. The first is pyriproxyfen, a ground-breaking insect growth regulator that cleverly works by halting the progression of the lifecycle development from juvenile to adult, resulting in an inability for the cockroach to reproduce, and therefore ensuring there is no increase in numbers. The second is the addition of chrysanthemum cinerariaefolium extract, a natural pyrethrum, which when combined with the existing concentration of cypermethrin has a synergistic effect, helping to deliver an even faster knockdown and longer-lasting residual for ongoing control of all lifecycle stages. A 5-litre container provides enough insecticide to treat an area of approx 250m2. Review: Excellent - Very good Review: Good - Good ## Features - ✅ THE STRONGEST COCKROACH SPRAY ON THE MARKET – Our latest innovative formulation contains three powerful active ingredients making it unparalleled in its ability to eradicate cockroach infestations from the home or business. - ✅ NEWLY DEVELOPED FORMULATION – Now containing three powerful active ingredients, including an Insect Growth Regulator, Formula C+ kills cockroaches on contact and halts the progression of the cockroach lifecycle development, resulting in no new numbers. - ✅ FAST ACTING AND LONG LASTING – The three potent active ingredients work in a synergistic way helping to deliver an even faster and more widespread knockdown of cockroaches and leaves an insecticidal residue that continues to protect for up to 12 weeks. - ✅ NON-STAINING AND LOW-ODOUR – Formula C+ is a ready-to-use, water-based spray so can be applied directly to any surface and furniture without causing any damage or nasty lingering smells. - ✅ INCREASED COVERAGE – Formula C+ 5 Litre now covers 250 square meters in a single application making it the most cost-effective cockroach spray on the market. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B085S1KX82 | | Best Sellers Rank | 120,490 in Garden ( See Top 100 in Garden ) 64 in Cockroach Control | | Brand Name | Pest Expert | | Country of Origin | United Kingdom | | Customer Reviews | 3.9 3.9 out of 5 stars (43) | | Item Form | Spray | | Liquid Volume | 5000 Millilitres | | Manufacturer | Pest Expert | | Specification Met | USDA | | Target Species | Cockroach | | Unit Count | 5000.00 millilitre | ## Product Details - **Brand:** Pest Expert - **Item form:** Spray - **Liquid volume:** 5000 Millilitres - **Specification met:** USDA - **Target species:** Cockroach ## Images ![Formula C+ Cockroach Killer Spray 5L - Maximum Strength Treatment & Control - with Free Trigger Hose Sprayer - Image 1](https://m.media-amazon.com/images/I/71Ah67VHpFL.jpg) ## Questions & Answers **Q: will this get rid of an infestation of millipedes around the outside of my house** A: The Formula C+ is not water stable, so if it was to rain the residue would be removed. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Excellent *by S***Y on 9 October 2023* Very good ### ⭐⭐⭐⭐ Good *by A***N on 8 September 2025* Good ### ⭐⭐⭐⭐ Worked perfectly *by S***Y on 3 January 2023* Have used in my home, have used it continuously for 2 to 3 days. All of them are gone. ## Frequently Bought Together - Pest Expert Formula C+ Cockroach Killer Spray 5L - Maximum Strength Treatment & Control - with Free Trigger Hose Sprayer - Pestmatic Smart Cockroach Trap x 15, Sticky Strong Glue Cockroach Trap with Food Bait, Roach Indoor Trap, Kraft Eco-Friendly & Natural Catcher for Crawling Insects, Alternative for Cockroach Killer - NOPE! CP Cockroach Killer Spray (5L) Odourless, Strong, Contact Killer for Home use. --- ## 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.nl/products/186565660-formula-c-cockroach-killer-spray-5l-maximum-strength-treatment-control](https://www.desertcart.nl/products/186565660-formula-c-cockroach-killer-spray-5l-maximum-strength-treatment-control) --- *Product available on Desertcart Netherlands* *Store origin: NL* *Last updated: 2026-05-16*