---
product_id: 170089198
title: "The Environmental Factor NemaKnights Slow-Release Nematodes - Biological Pest Control for Fungus Gnats, Thrips, & Whiteflies (280g, Treats Up to 50 Planters)"
brand: "the environmental factor"
price: "8677 kr"
currency: ISK
in_stock: true
reviews_count: 8
url: https://www.desertcart.is/products/170089198-the-environmental-factor-nemaknights-slow-release-nematodes-biological-pest-control
store_origin: IS
region: Iceland
---

# Slow-release for lasting effect Safe, natural biological control Treats up to 50 planters The Environmental Factor NemaKnights Slow-Release Nematodes - Biological Pest Control for Fungus Gnats, Thrips, & Whiteflies (280g, Treats Up to 50 Planters)

**Brand:** the environmental factor
**Price:** 8677 kr
**Availability:** ✅ In Stock

## Summary

> 🌱 Protect your plants the smart, natural way—because your garden deserves the best!

## Quick Answers

- **What is this?** The Environmental Factor NemaKnights Slow-Release Nematodes - Biological Pest Control for Fungus Gnats, Thrips, & Whiteflies (280g, Treats Up to 50 Planters) by the environmental factor
- **How much does it cost?** 8677 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.is](https://www.desertcart.is/products/170089198-the-environmental-factor-nemaknights-slow-release-nematodes-biological-pest-control)

## Best For

- the environmental factor enthusiasts

## Why This Product

- Trusted the environmental factor brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Break the Cycle:** Reapply every 10-14 days to disrupt pest life cycles and keep your garden thriving.
- • **Eco-Friendly & Safe:** Non-toxic formula targets pests without harming beneficial insects, pets, or your plants.
- • **Versatile Garden Ally:** Perfect for greenhouses, hydroponics, indoor/outdoor plants, and lawn spot treatments.
- • **Effortless Application:** No mixing needed—just shake directly onto affected areas for instant, hassle-free use.
- • **Continuous Pest Defense:** Granular slow-release nematodes provide ongoing protection against fungus gnats, thrips, and whiteflies.

## Overview

The Environmental Factor NemaKnights Slow-Release Nematodes offer a ready-to-use, granular biological pest control solution that treats up to 50 planters. Designed for continuous, eco-friendly protection against fungus gnats, thrips, and whiteflies, this product is safe for beneficial insects, pets, and plants. Ideal for diverse growing environments, it requires simple shake-on application and periodic reapplication to maintain a pest-free garden.

## Description

The Environmental Factor NemaKnights Slow-Release Nematodes - Biological Pest Control for Fungus Gnats, Thrips, & Whiteflies (280g, Treats Up to 50 Planters)

## Features

- SLOW-RELEASE NEMATODES FOR EFFECTIVE PEST CONTROL – Ready-to-use granular formulation that provides continuous protection against fungus gnats, thrips, whiteflies, and other garden pests.
- EASY SHAKEABLE APPLICATION – No mixing required; simply shake the desired amount directly onto the affected area for hassle-free pest control.
- SAFE & NATURAL BIOLOGICAL SOLUTION – Non-toxic and environmentally friendly nematodes that target pests without harming beneficial insects, pets, or plants.
- VERSATILE USE FOR ALL GROWING ENVIRONMENTS – Ideal for greenhouses, hydroponic systems, gardens, indoor and outdoor potted plants, and even lawn spot treatments.
- LONG-LASTING & REAPPLICATION FOR BEST RESULTS – Apply again 10-14 days after the first use to effectively break the pest life cycle and prevent reinfestation.

## Product Details

- **Item Form:** Granules
- **Item Weight:** 0.33 Kilograms
- **Brand:** The Environmental Factor
- **Target Species:** Gnat, Thrip, Whiteflies
- **UPC:** 817504009459

## Images

![The Environmental Factor NemaKnights Slow-Release Nematodes - Biological Pest Control for Fungus Gnats, Thrips, & Whiteflies (280g, Treats Up to 50 Planters) - Image 1](https://m.media-amazon.com/images/I/711SyzZD+DL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Did the trick and then some
*by R***P on July 19, 2025*

OMG it works. Like really well. I live in a very dry environment with clay like soil, aka it doesn’t hold moisture well. This product REQUIRES moist soil so the nematodes can survive and do their thing. I watered heavily two days before using, then watered moderately every day for a week after. Since it is summer it only took one day for the soil to completely dry out, thus killing the critters. But! That was ok!!! In that one week they did the dang thing. ALLLL the fly larvae were GONE. Like totally and completely GONE. I still have a mostly full container so if the flying menaces return I am armed to wage war and win. I was hoping it would help, but was not prepared for fly annihilation. Will absolutely repurchase if the scourge returns. But you HAVE to keep the soils damp continuously for them to be able to do their magic. And bonus pint that it has zero pesticides or anything else that one may not want in their garden.

### ⭐⭐⭐⭐⭐ Say Goodbye to Fungus Gnats: This Product Actually Works!
*by K***I on July 18, 2025*

Hey fellow gardeners! So, I had a bit of a nightmare with my raised cucumber beds. I thought I was doing good mulching them with GardenStraw, but after a few waterings, BAM! Fungus gnats everywhere. It was seriously annoying. I did some digging online for solutions and stumbled upon this product. Now, I'd never used nematodes before, but let me tell you, it won't be my last time! I followed the directions, sprinkled some in, and watered the beds as instructed. And get this – just a few days later, my garden was totally fungus gnat-free! This stuff seriously worked wonders. Just a heads-up: make sure you follow the watering directions for three days straight after you apply it. I got lucky because Mother Nature actually took care of two of those days for me with some rain. And honestly, the price wasn't even a factor for me. I would've paid way more for anything natural that would get rid of those annoying little pests. But good news – this product was super fairly priced for how well it works! Plus, a little goes a long way, so it'll last you a while. If you're on the fence about getting this, just go for it. You won't regret it!

### ⭐⭐⭐⭐ Works pretty well
*by K***R on July 11, 2025*

I’m assuming this is working pretty well as I’ve only seen a few flying bugs Nothing like I’ve had the last couple of years, but then I didn’t know what kind of bugs they were then. This shaker bottle of tiny little globules is so handy and easy to dispense onto plants that I’ll probably use this method from now on. It works!

## Frequently Bought Together

- The Environmental Factor NemaKnights Slow-Release Nematodes - Biological Pest Control for Fungus Gnats, Thrips, & Whiteflies, Easy Shakeable Granules (280g, Treats Up to 50 Planters)
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*Product available on Desertcart Iceland*
*Store origin: IS*
*Last updated: 2026-01-22*