Fungus gnats or vinegar flies are dark, tiny, and short-lived soil-borne insects. They come in any season, but during summer and winter, they really rise in number. Root plants and fungi are the main foods of the larvae. They actually help in decomposition which aids the soil to be richer. Adults gnats measuring two to five millimeters long likewise play an important role in spreading plant and mushroom spores. But since they live in garden soil and their diet is mainly plants’ roots, your house plants are in danger.
So you need to act as soon as you see early signs of fungus gnat infestation. The good thing is that there is an inexpensive substance you can use to get rid of them. The vinegar is a great liquid to use since it attracts adult gnats. Aside from being readily available and less expensive, it is also safe to use in stopping the attack of these flies on your house plants.
Below are some easy ways to kill fungus gnats with vinegar.
1. Vinegar and Soap Trap.
Mix one cup of vinegar with 1/4 cup of liquid dish soap. Place your mixture (in a jar or cup) on the spot where there are most gnats specifically under infected plants. The gnats will be attracted to the vinegar, go inside the cup and will get stuck in the suds and bubbles from the soap, and would be incapable to fly their way out.
2. Vinegar Trap.
Pour vinegar into a small cup or jar. Then cover it with a piece of plastic and bind it using a rubber band. Poke some holes in the plastic lid using a pin. The flies will flock to the cup and go down through the holes to get to the vinegar. Once they do, they would not be able to go out.
3. Vinegar and Sticky Food.
If the second trap does not work and gnats still manage to go out the little holes you made, add some honey or peanut butter to the underside of the plastic lid which you poked with tiny holes. The sticky food you added will catch the gnats when they attempt to escape through the small holes you made.
If these methods do not work because the gnat infestation is severe, you might want to consider purchasing and using products specially formulated to kill gnats that are readily available in your local garden supply store. Take note that these strategies can only get rid of the adults, so if you want to kill them while they’re still larvae, it would be best to use treatment to control fungus gnats.