Fungus Gnat

Natural Habitat

Damp environments with high organic matter, frequently found in indoor houseplants, greenhouses, and moist soil.

Diet & Feeding

Adults primarily consume liquids like water or nectar; larvae feed on fungi, algae, and decaying plant matter in the soil.

Behavior Patterns

Weak fliers that often stay near the soil surface. They have a short life cycle (about 3-4 weeks) and are attracted to light and carbon dioxide.

Risks & Benefits

Generally harmless to humans but can be a nuisance indoors. While larvae decompose organic matter, large populations can damage plant roots. They do not bite or sting.

Identified on: 5/12/2026