by Rincon-Vitova Insectary
Fungus gnats are common pest of indoor plants in wet environments where algae and fungus grow. Infested plants lose vigor, color, and pesky flies are seen emerging from the soil, especially during watering. Larval stage feeds on tender roots/root hairs and often transmits the soil-borne fungi which cause root rots: Pythium spp., and Fusarium spp, Phytopthera spp.
Fungus gnats are often confused with shore flies, but can be distinguished by their long, beadlike antennae, their long legs, and their wings which have a prominent “Y”-shaped vein.Continue reading