Fungus Gnat

Natural Habitat

Fungus gnats are commonly found in damp, humid environments, especially indoors around potted plants with moist soil, or outdoors in areas with decaying organic matter and high moisture.

Diet & Feeding

Adult fungus gnats typically don't feed significantly. Their larvae primarily feed on fungi, decaying organic matter, and sometimes the fine root hairs of plants, especially in moist soil.

Behavior Patterns

Fungus gnats are attracted to light but are weak fliers, often found near windows or lights indoors. They lay eggs in moist soil, and larvae then feed on fungi and decaying organic matter. They have a relatively short life cycle (3-4 weeks from egg to adult).

Risks & Benefits

Potential risks: While generally harmless to humans, large populations can be a nuisance. Larvae can damage roots of houseplants and seedlings, particularly stressed or young plants. Potential benefits: They play a minor role in decomposition of organic matter.

Identified on: 9/2/2025