How To Get Rid Of Gnats In Plants?

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Gnats are small flying insects that can be a big nuisance in gardens. Gnats are attracted to light and will fly around looking for food. They can be a big problem in plants because they love to eat pollen and flowers.

There are several ways to get rid of gnats in plants. You can use insecticidal soap, make a flypaper trap, use garlic oil, or set up a trap using beer cans.

Are the gnats in your house plants fungus gnats?

Fungus gnat

Yes, the gnats in your house plants are most likely to be fungus gnats. Fungus gnats are tiny insects that feed on the organic breakdown in soil, potting mix, and other container media.

Their larvae eat fungi and organic materials in the soil, but they also chew roots, making them a nuisance in greenhouses, nurseries, potted plants, and interior plant scapes.

Where do fungus gnat infestations come into your house and infest your house plants from?

Fungus gnats can come into your house from anywhere. They may be brought in on plants, or they may fly in through open windows or doors. They can also be spread through contact with soil or other moist surfaces.

Most fungus gnats come into your house through the soil of newly purchased plants or potting mix. They are small and black, and they can quickly infest your houseplants if you’re not careful.

Be sure to inspect any new plants for signs of gnats before bringing them into your home.

Summertime is when fungus gnats come into your house and infest your house plants. They fly in through open windows and doors, looking for a place to live and breed.

If you have any potted plants in your home, it’s important to take steps to get rid of the gnats before they become a problem.

Can fungus gnat infestations kill your house plants entirely?

Fungus gnats are a nuisance, but they rarely cause any damage to plants. They can be annoying because they tend to fly around your head and land on your skin, but they will not kill your plants.

That said, the tiny flies feed on the roots of plants and can cause significant damage if they are left uncontrolled. Therefore, you should take steps to get rid of them anyway!

How to get rid of gnats in plants in your home?

How to get rid of gnats in plants?

Gnats can be a nuisance in indoor plants. But, there is no need to resort to using toxic synthetic pesticides. Here are some good habits and techniques you can use to get rid of gnats in the plants in your home!

Control the amount of moisture in your houseplants!

There are a few things you can do to get rid of gnats in your plants. The most important is to control the amount of moisture in your plants. Make sure you never overwater them and use indoor plant watering devices if necessary.

Watering your plants indoors can go a long way in ensuring that you don’t end up overwatering them. This, in turn, will keep the amount of moisture in your houseplants at a moderate level.

Practice watering your houseplants from the bottom.

One of the most common ways to get rid of gnats in plants is to underwater them. This means that you water the plant from the bottom instead of watering it from the top.

This will help keep the top soil dry, which will make it difficult for the gnats to survive. You should also make sure to avoid over-watering your plants, as this can also lead to an increase in gnat populations.

Watering from the bottom is a great way to make sure your plants are getting the water they need.

Pour water into the plant’s drip tray or cache pot, and allow the plant to soak up the water through the drainage holes. This will help you avoid underwatering your plants and will help keep them healthy and looking good.

On the other hand, you don’t want to underwater your plant. If there’s not enough water in the pot, the roots won’t get what they need and will start to die.

The best way to water your plants is to wait until the topsoil feels dry and then give it a good soak. After 30 minutes or so, dump out any remaining water so that the plant isn’t left sitting in a pool of water.

Stick some yellow houseplant sticky traps around your houseplants.

One of the most effective methods of controlling adult fungus gnats is by using yellow sticky traps. These traps can be purchased at most garden stores or online and are easy to use.

Adult gnats are attracted to the color yellow, so if you place some yellow sticky traps around your houseplants, they will stick to the trap and die. However, these traps will not work to control the larvae population; you will need to use a different method for that.

Use organic methods of pest control for fungus gnats.

There are a few organic methods you can use to get rid of fungus gnats. Insecticidal soaps or neem oil mixture can be used to kill the gnats. You can also try using a fan to blow them away or simply remove the top layer of soil and replace it with fresh soil.

Clear out any parts of the soil that is infested with gnats.

One of the most effective ways to get rid of gnats in your plants is to clear out any parts of the soil that are infested with them. This will remove fungus gnat eggs and larvae, making it easier for you to gain the upper hand.

This also means removing any dead leaves or debris and ensuring that the soil is kept clean. You can also use a pesticide to kill off any remaining gnats.

Use gravel or sand to cover the upper surface of the soil in the pots.

You can cover the surface of the soil with gravel or sand to deter the gnats from laying eggs. You can also use a barrier top dressing, like diatomaceous earth, which will kill any eggs that come in contact with it.

Keep any unused soil entirely sealed.

Unused soil can be a breeding ground for fungus gnats. To prevent them from multiplying, keep the soil in an airtight container.

This will stop the gnats from being able to lay their eggs in the soil and will help get rid of any existing gnats.

When you open a potting soil bag, it provides an inviting breeding ground for the pests. So make sure to close the bags tightly after use and store them in a dry place.

How to get rid of gnats in plants using natural methods of pest control?

Fungus gnats can be eliminated using natural methods of pest control.

There are some other natural methods of pest control that you can use to get rid of all the gnats hovering around your precious houseplants!

Sprinkle D.E. in all the pots in your house!

Diatomaceous earth is a natural product made of the fossilized remains of diatoms, a type of algae. It has been used for centuries to control insects. You can sprinkle it on soil or plants to help control pests like gnats.

Food grade Diatomaceous earth is safe for pets and can be sprinkled around the house to keep them safe from pests.

Add some Ceylon cinnamon powder and nematodes to every pot in your house!

Cinnamon is a natural fungicide and an irritant for pests, so it will help to get rid of the gnats and prevent them from coming back.

You can also try using nematodes. Nematodes are tiny worms that feed on fungus gnat larvae. They can be purchased online or from garden stores.

Drench your houseplant soil in hydrogen peroxide solution.

In order to kill and completely get rid of the gnats in your plants, you need to drench the soil in a hydrogen peroxide solution. However, remember to only do this when your plant actually needs water and not when it’s already wet.

The hydrogen peroxide will help to kill the larvae and eggs that are causing the infestation. You can mix one three percent hydrogen peroxide with water in a one to four parts ratio and pour this over the soil of your plant.

At this level of dilution, the hydrogen peroxide will only kill the gnat eggs in the soil without damaging your plant!

How can you prevent fungus gnats from infesting your houseplants in the first place?

fungus gnat larvae

There are a few things you can do to prevent fungus gnats from infesting your houseplants. The most important is to reduce moisture levels in the soil. Gnats lay their eggs in moist soil, so avoid watering your plants excessively.

You can also use a soil wetting agent to keep the soil surface moist without making it too wet and create an environment that is conducive to fungus gnat growth.

Further, make sure to choose an appropriate pot with good drainage. This will help to ensure that the larvae do not have a moist environment in which to develop and infest your plants again.


It’s not very difficult to get rid of gnats in plants. However, it does take some amount of consistency and diligence for you to be able to drive all these pests out of your house and away from your houseplants!

About the author

A biotechnologist by profession and a passionate pest researcher. I have been one of those people who used to run away from cockroaches and rats due to their pesky features, but then we all get that turn in life when we have to face something.