FUNGUS GNATS – PESTS & DISEASES
The adult fungus gnat is a small black fly, about 3-4 mm in length. They are commonly seen swarming in greenhouses because they are attracted by the humidity, high temperatures and decomposing organic matter. Crop substrates offer ideal conditions for their larvae, which are white and legless, resembling small worms. They feed on organic matter and the tender parts of plants below the ground, such as roots, as well as the stems. Learn more about other pests such as aphids, Spider mites, whiteflies and thrips in our pests and diseases guide.
What are fungus gnats in short
What are fungus gnats?Fungus gnats (families Mycetophilidae and Sciaridae) are a common pest of plants grown indoors, especially where humidity and moisture are high.What can you see?They’re usually first noticed when the harmless adults are seen flying around house plants or gathered at a nearby window.What can you do about fungus gnats?Make sure air is blowing over the top of your soil and water your plant properly.