Sciarid Larvae (Fungus Gnat Larvae)
Soil-dwelling larvae feeding on roots, algae and organic matter in propagation media.
Sciarid larvae are the immature stages of fungus gnats. They feed on algae, fungi and fine roots in propagation media and container compost. High populations damage young plants, causing damping-off, root pruning and poor establishment. Biological control uses Steinernema feltiae, Dalotia coriaria and Hypoaspis (Stratiolaelaps) predators, alongside careful water and algae management.
Biological Controls for Sciarid Larvae (Fungus Gnat Larvae)
The options below are examples of beneficial insects and biological products commonly used against sciarid larvae (fungus gnat larvae). Always refer to supplier guidance and product labels for crop safety and local registration status.
Steinernema feltiae
Product: Exhibitline Sf
Environment: glasshouse
Temperature Range: 10.0 – 28.0°C
Rate: 250k–500k nematodes/m²
Frequency: Repeat every 2–4 weeks
Focuses on larval stages; integrate with Hypoline for best result.
Related Biological Solutions
Growers dealing with sciarid larvae (fungus gnat larvae) often also monitor these pests as part of a complete IPM programme: