Get rid of fungus gnats at the source with live beneficial sf nematodes.
A natural, chemical-free solution that targets larvae in the soil, safe for plants, pets, and people.
✔ Kills larvae in soil
✔ Fast-acting & long-lasting
✔ Suitable for indoor & outdoor use
✔ Ideal for living soil systems
Get Rid of Fungus Gnats – Naturally
Fungus gnats are more than just annoying, their larvae damage roots, slow plant growth, and can ruin healthy soil systems.
TerraSoil SF Nematodes (Steinernema feltiae) offer a natural, biological solution by targeting fungus gnat larvae directly in the soil.
Unlike sprays or traps that only catch adult flies, nematodes eliminate the infestation at its source.
TerraSoil SF Nematodes – Natural Fungus Gnat Control (2M)
SF nematodes are microscopic beneficial organisms that live in the soil and actively seek out pest larvae.
Once applied, they:
- Locate fungus gnat larvae in the soil
- Enter the larvae naturally
- Release beneficial bacteria
- Eliminate the pest within 24–72 hours
They continue working in your soil for up to 2 weeks, helping break the lifecycle of infestation.

