Fungus Gnat

Natural Habitat

Fungus gnats are commonly found in indoor environments, especially around houseplants, greenhouses, and other areas with high humidity and decaying organic material. Outdoors, they prefer moist, shaded areas with rich soil.

Diet & Feeding

Adult fungus gnats typically do not feed or feed on liquids. Their larvae feed on fungi, root hairs, and decaying organic matter in the soil. Under some conditions, they may feed on live plant roots.

Behavior Patterns

Fungus gnats are attracted to moist environments and decaying organic matter. They are weak fliers and often observed near potted plants, drains, or other damp areas. Their larvae live in the soil and feed on fungi and decaying plant material.

Risks & Benefits

Potential risks include being a nuisance, especially in large numbers. While adult gnats are harmless, their larvae can damage plant roots, leading to wilting and poor plant growth, especially in seedlings and young plants. They are not known to transmit diseases to humans or animals. Benefits are minimal, though they can contribute to decomposition in natural environments.

Identified on: 8/11/2025