---
product_id: 207166732
title: "Formula ‘C+’ Woodlice Killer Spray 5L Max Strength Treatment & Control - with Free Trigger Hose Sprayer"
brand: "pest expert"
price: "€ 119.52"
currency: EUR
in_stock: true
reviews_count: 8
category: "Pest Expert"
url: https://www.desertcart.ie/products/207166732-formula-c-woodlice-killer-spray-5l-max-strength-treatment-control
store_origin: IE
region: Ireland
---

# 3 active ingredients for max power 5L covers 250m² + free trigger sprayer Kills on contact + 12 weeks residual Formula ‘C+’ Woodlice Killer Spray 5L Max Strength Treatment & Control - with Free Trigger Hose Sprayer

**Brand:** pest expert
**Price:** € 119.52
**Availability:** ✅ In Stock

## Summary

> 🚫🐜 Dominate your space with the ultimate woodlouse warrior!

## Quick Answers

- **What is this?** Formula ‘C+’ Woodlice Killer Spray 5L Max Strength Treatment & Control - with Free Trigger Hose Sprayer by pest expert
- **How much does it cost?** € 119.52 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/207166732-formula-c-woodlice-killer-spray-5l-max-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

- • **Pro-Grade Convenience:** Includes a free trigger hose sprayer for precise, professional application—spray like a pest control expert.
- • **Fast & Lasting Defense:** Instant knockdown with a protective residue that keeps working for up to 12 weeks—because pests don’t take breaks.
- • **Safe & Clean Application:** Water-based, low-odour, and non-staining formula perfect for homes with kids and pets—no compromise on safety or surfaces.
- • **Triple-Action Powerhouse:** Harnesses 3 potent actives including an insect growth regulator for unbeatable woodlouse elimination.
- • **Max Coverage, Minimal Effort:** Generous 5L volume treats up to 250m², making it the most cost-effective solution for large or multiple areas.

## Overview

Pest Expert Formula ‘C+’ is the market’s strongest woodlouse killer spray, combining three powerful active ingredients—including an insect growth regulator and natural pyrethrum—to deliver fast, effective knockdown and up to 12 weeks of residual protection. This 5L water-based, low-odour formula covers 250m² per application and comes with a free trigger hose sprayer for professional-grade use, making it the go-to solution for lasting woodlouse control in homes and businesses.

## Description

Pest Expert Formula 'C+' Woodlice Spray is a fast-acting insecticide with a long-lasting residual that maintains woodlice control. Pest Expert Formula 'C+' is a highly-effective insecticidal woodlice spray that offers both fast-acting and long-lasting woodlice control. The most powerful woodlice killer available to the amateur market, as well as achieving a rapid knockdown it also leaves a protective residue that continues to kill woodlice 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 woodlice 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. A trigger hose sprayer is also included for a professional application of Formula C+ Spray (one per order).

Review: Amazing. Genuinely Works. - Effectiveness: This stuff is AMAZING for killing wood lice. I was plagued with the little horrors all year round. I would find at least 10 a day. There is no damp in my property so this problem was extremely annoying and baffling! I tried so many over the counter bug killers and they were all as much use as a chocolate teapot! I sprayed this down around the exterior and interior perimeter of my property and for the next two days I only ever had dead wood lice. After that, not one, neither dead nor alive. It’s been over 3 months and still none. I will spray 3 or 4 times a year for peace of mind because I’ve noticed I don’t get spiders or ants either anymore. A little goes a long way. I’m expecting this bottle to last a few years. One very important thing to note…… use in a ventilated area! I had a coughing fit from hell when I sprayed under the stairs! I checked the ingredients and there is nothing hazardous to human health but jeez! It takes your breath away! Can’t recommend this enough. Yes it costs more than a bottle of supermarket ant powder killer or whatever but the saying is never truer - you get what you pay for.
Review: Great stuff it actually works! - Was sceptical how effective this would be as its just a spray but its been about 10 days now and its got rid of the woodlice! The first few days i was still getting woodlice so just as i thought its not worked since then iv virtually stopped getting woodlice into my home other than the very odd one. Highly recommended be patient this stuff is great. I only did the outside of my house and its stopped them. Iv still got half a bottle left so its very cost effective. Remember to do all vents and windows and cracks.

## Features

- ✅ THE STRONGEST WOODLICE SPRAY ON THE MARKET – Our latest innovative formulation contains three powerful active ingredients making it unparalleled in its ability to eradicate woodlouse infestations from the home or business.
- ✅ NEWLY DEVELOPED FORMULATION – Now containing three powerful active ingredients, including an Insect Growth Regulator, Formula C+ kills woodlice on contact and halts the progression of the woodlice 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 woodlice 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 Litres now covers 250 square meters in a single application making it the most cost-effective woodlouse spray on the market.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B089B5GNKH |
| Best Sellers Rank | 85,562 in Garden ( See Top 100 in Garden ) 2,476 in Indoor Insect Control |
| Customer Reviews | 4.2 4.2 out of 5 stars (27) |
| Date First Available | 24 Jun. 2015 |
| Item Package Quantity | 1 |
| Manufacturer | Pest Expert |
| Specification met | USDA |

## Product Details

- **Brand:** Pest Expert
- **Item form:** Spray
- **Liquid volume:** 5000 Millilitres
- **Specification met:** USDA
- **Target species:** Cockroach

## Images

![Formula ‘C+’ Woodlice Killer Spray 5L Max Strength Treatment & Control - with Free Trigger Hose Sprayer - Image 1](https://m.media-amazon.com/images/I/71Bkvlzbe6S.jpg)

## Questions & Answers

**Q: Is that good for cimex ?**
A: Yes, this can be used for cimex, it is a broad-spectrum insecticide so can be used against most insects

## Customer Reviews

### ⭐⭐⭐⭐⭐ Amazing. Genuinely Works.
*by A***R on 6 July 2025*

Effectiveness: This stuff is AMAZING for killing wood lice. I was plagued with the little horrors all year round. I would find at least 10 a day. There is no damp in my property so this problem was extremely annoying and baffling! I tried so many over the counter bug killers and they were all as much use as a chocolate teapot! I sprayed this down around the exterior and interior perimeter of my property and for the next two days I only ever had dead wood lice. After that, not one, neither dead nor alive. It’s been over 3 months and still none. I will spray 3 or 4 times a year for peace of mind because I’ve noticed I don’t get spiders or ants either anymore. A little goes a long way. I’m expecting this bottle to last a few years. One very important thing to note…… use in a ventilated area! I had a coughing fit from hell when I sprayed under the stairs! I checked the ingredients and there is nothing hazardous to human health but jeez! It takes your breath away! Can’t recommend this enough. Yes it costs more than a bottle of supermarket ant powder killer or whatever but the saying is never truer - you get what you pay for.

### ⭐⭐⭐⭐⭐ Great stuff it actually works!
*by R***T on 19 October 2023*

Was sceptical how effective this would be as its just a spray but its been about 10 days now and its got rid of the woodlice! The first few days i was still getting woodlice so just as i thought its not worked since then iv virtually stopped getting woodlice into my home other than the very odd one. Highly recommended be patient this stuff is great. I only did the outside of my house and its stopped them. Iv still got half a bottle left so its very cost effective. Remember to do all vents and windows and cracks.

### ⭐⭐⭐ Insect spray
*by F***E on 10 March 2024*

Bought for woodlice inside conservatory. Only worked for a few days then they were back. Can't tell if spray killed them as they die anyway when come inside.

## Frequently Bought Together

- Pest Expert Formula ‘C+’ Woodlice Killer Spray 5L Max Strength Treatment & Control - with Free Trigger Hose Sprayer
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- Woodlice Smoke Bomb 4 Pack - Fast-Acting Formula, Comprehensive Coverage, Non-Staining, for Home Use, Effective Against All Insects

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*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-02-26*