Fungus Gnat

Natural Habitat

Damp soil of houseplants, greenhouses, growing operations, and any indoor or outdoor environment with excessive moisture and decaying organic material.

Diet & Feeding

Adult fungus gnats typically do not feed or feed on liquids. Larvae primarily feed on fungi, decaying plant matter, and root hairs in moist soil.

Behavior Patterns

Fungus gnats are typically attracted to moist environments and decaying organic matter. Adults are poor fliers and tend to remain near host plants or breeding sites. Larvae feed on fungi and decaying plant material in the soil.

Risks & Benefits

Risks: Larvae can damage plant roots, especially in seedlings and young plants, leading to wilting and poor growth. They are a common nuisance pest indoors. Benefits: While not significant, they can contribute to decomposition of organic matter.

Identified on: 8/31/2025