Fungus Gnat

Damp environments rich in organic matter, such as houseplants, greenhouses, and compost piles.

Larvae feed on fungi, organic mulch, and plant roots; adults primarily consume liquids or do not feed at all.

Adults are weak fliers often seen running or flying in erratic patterns near breeding sites. They are strongly attracted to light.

Generally harmless to humans but can be a nuisance pest indoors. Larvae may damage the root systems of delicate indoor plants if populations are high.