Fungus Gnat

Natural Habitat

Damp environments rich in organic matter, often found in indoor potted plant soil, greenhouses, and moist kitchen areas.

Diet & Feeding

Larvae feed on fungi, algae, and decaying plant matter in the soil; adults do not feed or consume only liquids like nectar.

Behavior Patterns

Adults are weak fliers often seen crawling on surfaces or flying near moisture sources. They have a short lifespan of about one week but reproduce quickly in moist soil.

Risks & Benefits

Generally harmless to humans but can be a nuisance indoors. Large larval populations may damage plant roots, while they benefit the ecosystem by breaking down organic matter.

Identified on: 5/12/2026