---
product_id: 693252052
title: "Fungus Gnat Killer Spray 1L | Organic Protection Against Sciarid Flies | Effective for Houseplants, Seedlings | Safe for Indoor & Outdoor Use | Targets Adults & Larvae | Eco-Friendly Formula"
brand: "ready steady defend"
price: "$59.46"
currency: USD
in_stock: true
reviews_count: 8
category: "Ready Steady Defend"
url: https://www.desertcart.us/products/693252052-fungus-gnat-killer-spray-1l-organic-protection-against-sciarid-flies
store_origin: US
region: United States of America
---

# 1L eco-friendly formula Safe indoor & outdoor use Targets adults & larvae Fungus Gnat Killer Spray 1L | Organic Protection Against Sciarid Flies | Effective for Houseplants, Seedlings | Safe for Indoor & Outdoor Use | Targets Adults & Larvae | Eco-Friendly Formula

**Brand:** ready steady defend
**Price:** $59.46
**Availability:** ✅ In Stock

## Summary

> 🌱 Say goodbye to gnats, hello to lush roots!

## Quick Answers

- **What is this?** Fungus Gnat Killer Spray 1L | Organic Protection Against Sciarid Flies | Effective for Houseplants, Seedlings | Safe for Indoor & Outdoor Use | Targets Adults & Larvae | Eco-Friendly Formula by ready steady defend
- **How much does it cost?** $59.46 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/693252052-fungus-gnat-killer-spray-1l-organic-protection-against-sciarid-flies)

## Best For

- ready steady defend enthusiasts

## Why This Product

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

## Key Features

- • **Root Health Booster:** Prevents root damage and promotes vigorous plant growth for thriving indoor and outdoor plants.
- • **Versatile Application:** Perfect for houseplants, seedlings, gardens, and greenhouses—anywhere gnats threaten growth.
- • **Eco-Conscious Plant Care:** Organic insecticidal soap with natural soya oils keeps your garden green and toxin-free.
- • **Large 1L Ready-to-Use Spray:** Generous size means fewer refills and consistent protection throughout the season.
- • **Powerful Dual-Action Formula:** Eradicates fungus gnats at every life stage for total pest control.

## Overview

This 1L Fungus Gnat Killer Spray offers an organic, biodegradable solution targeting both adult gnats and larvae. Safe for indoor and outdoor use, it protects houseplants and seedlings by preventing root damage and promoting healthy growth. Its ready-to-use formula combines insecticidal soap and natural soya oils, delivering effective pest control without harsh chemicals—ideal for eco-conscious plant lovers seeking reliable, versatile protection.

## Description

Fungus Gnat Killer Spray 1L | Organic Protection Against Sciarid Flies | Effective for Houseplants, Seedlings | Safe for Indoor & Outdoor Use | Targets Adults & Larvae | Eco-Friendly Formula : desertcart.co.uk: Garden

Review: Fungus gnat spray - Delivered as ordered. All as expected and good quality products
Review: Good size bottle. Seems to be working - Good size spray bottle, bigger than others I've had. Just hoping it works as last summer I was inundated with these blessed gnats. I've been using it and not seen any more dead gnats appearing which is a good sign. Think they have a cycle of 28 days so need to continue using as a break in spraying will allow them to hatch and the process starts again. Not the cheapest spray I've had but the bottle size is bigger

## Features

- Use biocides safely. Always read the label and product information before use.
- Eradicate fungus gnats with our Fungus Gnat Killer Spray. Perfectly formulated to target adults and larvae, this powerful solution prevents root damage and promotes healthier plant growth, ensuring effective pest control for houseplants and seedlings alike.
- Crafted from insecticidal soap with potassium salts and natural soya oils, our eco-friendly Fungus Gnat Killer Spray offers a safe, biodegradable alternative to traditional pesticides. Ideal for use on indoor and outdoor plants without harming the environment.
- Versatile and easy to apply, our spray is suitable for garden, greenhouse, or home use. It protects a broad range of plants from sciarid flies, ensuring your plant's environment remains healthy and vibrant without the use of harsh chemical treatments.
- Ready-to-use formula; shake well and apply directly to soil and lower areas of plants where fungus gnats are prevalent. Regular application ensures comprehensive control and protection against these pests, safeguarding your plant's health and growth.
- Our Fungus Gnat Killer not only eliminates current infestations but also prevents future occurrences. Regular use fosters robust root systems and flourishing plant growth, making it an essential part of your plant care regimen for continued health and vitality.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0DR693FMY |
| Batteries Required? | No |
| Best Sellers Rank | 4,920 in Garden ( See Top 100 in Garden ) 21 in Outdoor Multi-Insect Control |
| Customer Reviews | 3.5 3.5 out of 5 stars (42) |
| Date First Available | 21 Dec. 2024 |
| Included components | Spray |
| Item Weight | 1.08 kg |
| Manufacturer | Ready Steady Defend |
| Manufacturer reference | FGS1L |
| Package Dimensions | 30.5 x 12.7 x 8.4 cm; 1.08 kg |
| Part number | FGS1L |
| Size | 1L |

## Images

![Fungus Gnat Killer Spray 1L | Organic Protection Against Sciarid Flies | Effective for Houseplants, Seedlings | Safe for Indoor & Outdoor Use | Targets Adults & Larvae | Eco-Friendly Formula - Image 1](https://m.media-amazon.com/images/I/71G4Ho4XlHL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Fungus gnat spray
*by P***N on 19 November 2025*

Delivered as ordered. All as expected and good quality products

### ⭐⭐⭐⭐ Good size bottle. Seems to be working
*by M***Y on 4 February 2025*

Good size spray bottle, bigger than others I've had. Just hoping it works as last summer I was inundated with these blessed gnats. I've been using it and not seen any more dead gnats appearing which is a good sign. Think they have a cycle of 28 days so need to continue using as a break in spraying will allow them to hatch and the process starts again. Not the cheapest spray I've had but the bottle size is bigger

### ⭐ Don't bother - it doesn't work
*by J***H on 3 November 2025*

Everywhere I go in my house I see tiny black flies. As soon as I sit down they come looking for me and annoy me by flying around in front of my eyes. When I go to swat them they disappear, only to reappear a few moments later! I bought this Fungus Gnat Killer and used it as per the instructions. However, it has made not a ha'porth of difference. We still have flies. They are obviously coming from the compost I bought to repot a Peace Lily plant that had outgrown its pot. It was so big I split it into two plants so have twice the number of flies I would have had if I'd just repotted it as one plant! I put yellow bug catcher stickies in all of my plants which, as you can see, have been very effective. The photos show both sides of the two stickies I put in the worst affected plant just a week ago!

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-01-24*