The gnat closely resembles a mosquito and loves to travel in groups. There is nothing they love more than moisture which is the primary reason you would have a full-on gnat attack. But my house is as dry as the Arizona deserts or so you may think. But do you have moist potting soil, leaky pipes in your yard, under the sink or in the bathroom?
What about water puddles outside your house, moist garbage cans, and even overwatered gardens? Even the condensation around the vents in your house can attract and become breeding grounds for gnats.
Remove the moisture
Like mosquitoes these little insects love damp environments that are within and around the house. They can bite and can be pesky but most importantly, if you have an infestation of eye gnats you and your pets or livestock are at risk of conjunctivitis.
Keeping the environment around the home dry and airy discourages the breeding of these little terrors. Try not to over water the plants and keep potted plants with moist soil outside. Within the home keep all areas dry and have no puddles in the bathroom. Make sure you call the plumber to fix leaky pipes that will attract gnats.
This is an age old way of getting rid of gnats. Place the candle in a bowl of clear water and light it up. Switch off the electricity in the rest of the house and let the candle burn as the only source of light. The burning flame will kill the gnats and the water in the bowl will drown off those that fall into it.
Have a bottle of cider vinegar and an infestation of gnats? That is your solution right there! Add two table spoons of cider vinegar into seven drops of dish washing soap and quarter cup of lukewarm water. Mix this and then a teaspoon of sugar into the mixture. Stir it until everything dissolves and place this honey trap close to the gnat traffic. They will be attracted by the scent of sugar but the dish washing soap will make it impossible for them to fly.
Sticky fly paper
This option never fails. It is not only effective in trapping but it also traps a lot of the gnats. Remember when we said gnats love to travel in groups. Apparently, they also die in groups. Hang the paper where the infestation is most prevalent and wait. It is only a matter of time before they are attracted to the bright adhesive on the paper and soon enough they get stuck on it in hordes.
Window fly traps work best and are highly recommended. The clear plastic sheets resemble clear water which makes them attract gnats in droves. When stuck to the window pane they are discreet and no one can even tell they are working until you check.
Gnats are not typically associated with human diseases except the eye gnat mentioned above. But they are biters and can make life very uncomfortable. So choose any of the above ways to get rid of them and go back to enjoying your space like before.