Biological Pest Control

Fungus Gnat Nematodes

Beneficial nematodes for fungus gnat larvae in houseplants and compost

Fungus Gnat Nematodes
£8.99
Tax included. Shipping calculated at checkout.
Bred in UK – delivered quickly
Chemical-free – leaves no residues
Discreet, effective & naturally sustainable
Safe for children and pets
Pack size Houseplants – makes 5 litres
Live biological product – use a standard delivery address. Do not use parcel lockers.
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Target pest
Fungus gnat larvae, Sciarid fly larvae
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Where to use
Houseplants, Greenhouses, Seed trays & propagation
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When to use
Year-round indoors · compost 12°C+
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Application
Water-applied compost treatment
Description +

Fungus Gnat Nematodes provide targeted biological control of fungus gnat (sciarid fly) larvae living in damp compost and growing media. The beneficial Steinernema feltiae nematodes are mixed with water and applied directly to the compost, where they seek out susceptible larvae below the surface. Ideal for houseplants, propagation trays and greenhouse plants.

How to Use +
Apply to moist compost. Mix the nematodes with water according to the pack instructions and water evenly around affected plants. Keep the growing medium moist for several days after application and use the prepared solution immediately.
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Target Pests +
Fungus gnat larvae Sciarid fly larvae
Storage & Delivery +
Keep the unopened pack refrigerated and use before the expiry date shown on the pack. Do not freeze. Once opened, use the entire pack immediately.
Delivery: Live biological product – use a standard delivery address. Do not use parcel lockers.
Fungus Gnat Nematodes £8.99

Why choose this product?

A quick look at the key strengths of this biological pest control.

Biological approach

Conventional approach Biological control

Treatment focus

Broad treatment Highly targeted

Ease of application

More involved Very simple
Pest-damaged plants compared with healthy thriving plants

MILBIES vs. Guesswork

Everything you need to choose, use and reorder with confidence.

THE MILBIES WAY
A simpler way to protect your plants
Find the right solution faster Use our Pest Finder to quickly narrow down the treatment that matches your pest.
Clear How to Use guidance Straightforward application guidance helps you get from delivery to treatment with confidence.
Flexible pack sizes Choose a pack size that better matches your plants, space and treatment needs.
Optional subscriptions Make repeat treatments easier with scheduled deliveries when a subscription suits your needs.
Better-value bundles Save when a bundle makes sense instead of buying suitable treatments separately.
THE HARD WAY
When pest control gets complicated
Searching product by product Finding the right treatment can quickly turn into guesswork.
Confusing application instructions Too much technical information can make a simple treatment feel complicated.
One size does not fit every job Buying too much or too little makes treatment less convenient.
Remembering every reorder Repeat treatments are easier to miss when every order has to be placed manually.
Paying for everything separately Multiple treatments can cost more when they are purchased one at a time.
UK Bred

UK Bred

Beneficial organisms bred in the UK for dependable quality and freshness.
Fast & Targeted

Fast & Targeted

Biological controls selected for specific pests, with clear guidance on how to use them.
Naturally Effective

Naturally Effective

Beneficial insects and nematodes offer a biological approach to pest control.
Expert Guidance

Expert Guidance

Straightforward advice to help you choose and apply the right solution.
Natural pest control for home, plants and garden.
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