To get rid of gnats inside the home, remove any potential food and water sources. If gnats are living in damp areas, such as under sinks, repairs may be required to stop leaks. Eliminating gnats can take several days if damp soil is causing the infestation.
One way to get rid of gnats is to let the soil around plants that have a gnat infestation to dry out completely. This kills the larvae, and vacuuming removes any remaining adult gnats. Another way to rid a yard of gnats is to set up electric fly exploders.
To eliminate fungus gnats, stop watering houseplants to allow the soil to dry out, and apply a biological agent or commercial insecticide to the soil. Use yellow sticky traps to capture adult gnats, and move damp materials outdoors to reduce gnats on the property.
Gnats are attracted to vinegar, and for this reason it is commonly used to trap and kill these unwanted insects. Add a drop of liquid soap to the vinegar to break its surface tension. With this method, the gnats drown when they attempt to land.
Removing food and water sources is an effective method of controlling gnat populations. Fungus gnats, the type most commonly found in homes, thrive in areas where potted plants, gardens and compost are found. A shovel, sand, a small lidded jar, vinegar and dish detergen...
Gnats are attracted to wet and decomposing organic matter, so removing any from the yard will reduce the likelihood of their congregating there. Some gnat repellents include DEET and vanilla.
Generic bug sprays, as well as DEET, are common sprays used to keep gnats away. However, there are less harmful alternatives available for those not wishing to use harsh chemicals.