Fungus gnats like to feed on roots of the plants and organic matter. Adults and larvae live in moist, shady areas. The adults lay there eggs on top of the soil, near the base of the stem and takes about 4 days to hatch. The larvae will start by eating the root hairs of the plant then working their way up the plant, Fungus gnats like to eat organic matter so they will be stealing away nutrients from your plants,
Put potato slices on the surface of the soil. The larvae like it and will be drawn to it.. After about 4 to 5 days, remove the potato slices with the larvae.
Greenthing Reviewed by Greenthing on . Gnat problem? lil help plz :) Hey everybody me and my roomie are on our first grow and we decided to start off with some bagseed just so we wouldnt ruin our awesome nug seeds haha (Joey's NLxC99 seeds :D). But now that the plants are probably around 2.5 weeks old or so I have started to notice lots of little gnats fluttering around in the soil of the pots and some are flying around in the grow room and I was really wondering if anybody knew what they were or if they are detrimental to the plants. I really dont like them Rating: 5