Fungus Gnat

Natural Habitat

Damp environments high in organic matter, such as potting soil, mulched garden beds, and moist greenhouses.

Diet & Feeding

Larvae primarily feed on fungi, algae, and decaying plant matter in the soil; adults typically do not feed or drink only water/nectar.

Behavior Patterns

Adults are weak fliers and often seen hovering near the soil surface or resting on foliage; they have a short life cycle of about 3 to 4 weeks.

Risks & Benefits

Generally harmless to humans (non-biting), but larvae can damage young plant roots and seedlings in high concentrations; they serve as a food source for spiders and predatory insects.

Identified on: 2/5/2026