Fungus Gnats Bonsai
They like the fungus on peat moss and usually continuously damp conditions.
Fungus gnats bonsai. If the plant can cope with drying out a little try keeping it a bit dryer the gnats should disappear. First stop overwatering your plants. Fungus gnats are mostly just a nuisance usually not bothering the plant. Most of the time just letting the soil dry out a bit gets rid of them.
Gnats are a pretty common problem with bonsai trees because of the constant watering and therefore moist soil conditions. Unfortunately i did not realize it was infested with fungus gnats which then spread to all of my other plants and multiplied. They especially loved my ginseng bonsai. If your bonsai plant is already outdoors place it near these areas so the parasitic wasps can eat the bugs on your.
If you let that part dry out the fungus they eat will be reduced and so will the gnats. I would always see them flying around my plants but they also love to fly around my face and eyes. Fungus gnats are a fruit fly sized insect pest that primarily affects indoor houseplants. While fruit flies hang out primarily near fruit rotten food and funky fridges you ll find fungus gnats in wet plant soil in sewer areas and in household drains.
The gnat larvae live in the upper part of the soil bed. Let the soil dry out more. If these flies are also seen coming out of the soil around your tree you probably have fungus gnats. If you are using a well draining bonsai medium the problem should go away fairly quickly.
If you re still growing the plant indoors you can order wasp eggs online and hatch them in a greenhouse. After about three days the eggs hatch into larvae which burrow into the soil to feed on fungi and decaying plant material. But they re virtually harmless and easy to control. Fungus gnats sciaridae spp are the most common houseplant pest and are distinguished from fruit flies drosophila spp because of their darker color.
A few months back i purchased and brought home a jade plant from a garden show. Attracted to the moisture of potting soil adult gnats lay their eggs up to about 200 on organic matter near the soil surface.