Nematodes for Fungus Gnats – 50 Million

Big-collection fungus gnat control! 🦟 50 million Steinernema feltiae nematodes to clear those irritating little black flies across a large indoor jungle or greenhouse.

How it works

Watered into the soil, the nematodes seek out fungus gnat larvae, infect and kill them, then multiply inside and spread to hunt more. They feed exclusively on insect larvae — totally harmless to plants, pets and people — and breaking that larval stage is what finally brings the flies under control.

How to use

Dissolve in water and apply to the soil of every plant in the affected area, keeping it lightly moist for a week afterwards. Best at 20–25 °C soil temperature. Pair with yellow sticky traps to mop up the adults.

Good to know: 50 million nematodes — covers approximately 50–100 m².

Ordering & shipping

• Live beneficial insects ship once a week — your order is dispatched on the Monday of the following week.
• For orders within Sweden, beneficial insects will be sent directly from our supplier.
• For the rest of EU, beneficial insects will be sent together with your plants from our greenhouse.
• Note: orders containing only beneficial insects are not included in the free shipping over 50€ offer for the rest of EU — a fixed shipping fee always applies.

- Bild från Biobasiq