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How to Get Rid of Gnats In My House


Gnats are tiny little flying critters, smaller than the basic house fly and mosquito. Most species of gnat do not bite but they can still be very annoying. The typical breeding ground for gnats is around rotten or decaying organic matter. If the house is not clean or there is a dead animal in the basement / attic, you might see a lot of gnats accumulating near the source of decay. 

It is nature’s way of indicating a need for better hygiene. Getting rid of a gnat colony can get tricky but first you must know where they live and how they breed.

Where they live

Gnats usually live in humid and damp surroundings in all parts of the world. They eat small plants and other insects (usually after they’re dead). The one’s that bite suck the blood of other animals as well. The different species of gnats include buffalo gnats, eye gnats, sand gnats, fungus gnats, black gnats and fruit flies. Black gnats are considered to be the most dangerous of all gnats because these are the blood thirsty ones. Black gnats are usually identifiable by their signature dark wings.


Gnats breed rather quickly as they can lay more than 300 eggs at a time which can quickly grow in to larvae and start reproducing themselves. Gnats need a stagnant source of water such as a pond or lake to lay their eggs. Standing water serves as a breeding ground for many insects. It often happens that leaks in the basement or attic often go undetected for months and invite disease spreading infestations to germinate.

Here are 6 DIY techniques you can use to get rid of gnats

Here are some simple ways you can employ against gnats:

  1. Electric fly traps – mosquitoes and gnats are attracted towards the light when it is dark. Getting a good quality bug zapper is the fastest way to get rid of them. The UV rays are especially appealing to these insects and once they come in contact with the rods, boom, they’re fried. Here at Solutions Pest & Lawn, we don’t have zappers but we do have fly lights. Electrical insect traps such as the Mantis Flylight 1x2 or the Vector Classic Flylight emit ultraviolet light which attracts the gnats towards them and eventually getting the bugs stuck on the sticky surface of a glue board found inside.

  2. Using ammonia to kill gnats and destroy their eggs – sink and shower drains are especially susceptible breeding grounds as they are dark, enclosed and moist. Do not use the sink for at least an hour before so that is dries completely. Then pour half a cup of ammonia down the drain and leave it overnight. This should kill any colony under the sink. However, always use protective clothing such as rubber gloves when handling ammonia because it is toxic to human beings.

  3. Apple cider vinegar is a substitute for ammonia and is easily available. Ammonia may cause a foul smell, so apple cider is naturally better. You don’t have to use other harmful pesticides either. All you need is four tablespoons of apple cider vinegar, 2 tablespoons of sugar, liquid soap and water. Mix the ingredients together and place them in a container. Fumes from the concoction will attract insects which will die as soon as they touch the surface. However, if you are not sure where to place the container, you may want to place several smaller containers all over the house.

  4. Using a fogger – if you really want to bring the house down, use a gas fogger to drive away all the pests. Foggers cause a blanket of CO2 which suffocates the gnats, killing them instantly. The gas enters holes and crevices in the walls as well leaving no place for them to escape. Using pesticides such as an aerosol space spray like CB-PCO Insect Fogger can work excellently to control indoor gnats and leave a great residual that will keep on killing gnats long after the initial application. 

  5. Disposable traps are also available in the market. These contain attractants in their dormant state. To activate, only a little water is required. Gnats and flies are pulled towards the smell and once they contact the surface, they have no way of escaping. This is particularly effective with minimal effort. Disposable traps can be used both inside and outside the house. Set up a trap such as the Musca-Stik to capture remaining fungus gnats in the home after moisture sources have been removed.

  6. Gnat repellents designed especially for gnats are one of the best ways to get rid of infestations. Plus it makes you feel like a total badass to unleash chemical warfare on the defenseless creatures.

Ways of prevention – do it right the first time

Professional fumigation can be expensive plus they require you to clear out all the closets and that is a hassle you want to avoid at all costs. It might be obvious to you but it comes as a surprise to many people how their habits might be the cause of these infestations. Others are just clueless about the right way to do things. It is also advised to teach your kids to do the same. Here are few techniques you can employ to prevent pests from forming colonies in your house:

  • Gnats are scavengers of the insect world. They feed on leftover foods and scraps. Do not leave meals unattended over longer period of time. If you have to go somewhere, always cover the food with a lid or pack it in a container and store it in the fridge.

  • Use airtight jars to store sugar foods and nuts. This will prevent gnats and keep the food fresh for longer. Airtight jars are a good investment.

  • Opt for weekly shopping instead of monthly shopping. This allows you to consume fresh fruits without having them going bag and ending up in the trash.

  • Talking about trash, always cover the cans with lids and throw the trash in sealed bags to avoid pests.


If gnats are becoming an unwanted plague in your home, keep your house clean, dry and clutter free. By taking the necessary precautions and using the products we mentioned above, you are sure to get rid of the gnats and avoid having a major case of gnat infestations at home. For more helpful, DIY advice call us at 800-479-6583, email us at askapro@solutionsstores.com or visit one of our stores and speak to us in person!


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