How To Get Rid Of Fungus Gnats

Fungus gnats are small, white flies that bite humans and animals. They can be found in many different places such as between window frames, on soil or plants, inside the home, around food sources and even near water sources. The bites from these flys will leave a painful rash on your skin and sometimes swell up to become larger than normal insect bites.

Fungus gnats are small, black flies that can be found in moist areas of your house. They feed on fungus and other organic matter. The best way to get rid of them is by cleaning up the area where they are living. Read more in detail here: how to get rid of fungus gnats in house.

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You’ve undoubtedly seen a few, or a lot, of gnats fluttering about while watering indoor plants. When this occurs, you’re likely to have a lot of questions, one of which is how to get rid of these fungus gnats.

Each approach for getting rid of fungus gnats might be beneficial, particularly when attempting to get rid of these dreadful pests from your home. Continue reading for additional information on how to do each procedure, as well as information on what fungus gnats are and how to avoid them.


Fungus Gnats: What Are They?

Have you ever seen little black gnats buzzing about your indoor plants? If that’s the case, you’re undoubtedly wondering where the spoiled fruits and veggies went. However, despite their resemblance to fruit flies, they are not the same.


Fungus gnats, also known as soil gnats, may be found in the soil of your houseplants. Larvae are born in the soil and feed on roots and several forms of fungus present in the soil. Typically, they are drawn to:

  • Plants that have been overwatered
  • Mildew and mold
  • Environments that are bright, warm, and wet

Because these gnats are largely harmless, they shouldn’t hurt any healthy, vigorous plants you have in your house. They may, however, color your plants yellow, stunt their development, and kill seedlings and vulnerable plants. 

To get rid of fungus gnats, you may use a variety of natural and non-natural ways. Methods that are both natural and non-natural include:

Natural Techniques Non-Natural Techniques
Allow the dirt to dry out. To attract and catch fungus gnats, use sticky fly traps.
Plants and soil should be sprayed with soap and water. Make a solution of water and peroxide.
Use a sand or gravel option instead of dirt. Insecticides should be used on plant soil.
Remove the top layer of dirt and set the container outdoors. Use a biological pesticide.
Plant in a new pot.  




Fungus Gnats: How to Spot Them

Fungus gnats, fruit flies, and little mosquitoes are all similar in appearance and behavior. So how can you tell them from from the other annoying insects buzzing about your home?

Fungus gnats may be identified using a few easy tricks, particularly when attempting to distinguish them from other insects. 

  1. Inspecting the plant for flies or insects flying in the air
  2. Look for white larval spots on the ground and in the soil surrounding and within the plant.
  3. Look for any signs of drooping or withering. 
  4. Look at the leaves to determine whether they’re yellowing or dropping off the plant altogether.

Once you’ve detected and confirmed that you have fungus gnats in your house or on your plants, getting rid of them might seem like a daunting task. There are a few extremely smart and useful techniques for getting rid of these gnats and keeping your plants looking healthy.

Fungus Gnats: How To Get Rid Of Them

Adult fungus gnats are more bothersome than dangerous. Treatments and preventions vary depending on whether you’re dealing with adults, larvae, or both phases of the fungus gnat life cycle.

Using a solution on plants and soil may aid in the removal of gnat larvae and the prevention of new ones developing. You may use a variety of remedies on plants that are both safe and effective.

  • Spray this mixture of water and soap on top of the soil to destroy any fungus gnat larvae. Every few days, this step will need to be repeated. 
  • Spray a combination of hydrogen peroxide and water on top of dry potting soil, 1 part hydrogen peroxide to 4 parts water. After spraying the solution, it’s usual to hear noises coming from your plant soil. The peroxide solution will break down the plant’s soil after killing all of the larvae, and it may be done a few more times to guarantee that all of the gnats’ larvae are gone.  
  • Insecticides: Because the larvae and adults of the gnats are found in the soil, it is advisable to treat the soil rather than the plant. Fungus gnats may be controlled using natural pesticides such as Neem Oil. 

Sticky fly traps and biological agents are also available for use on your plants. If there is an increasing infestation, sticky fly traps are ideal, and utilizing a brightly colored glue will attract adult fungus gnats. The easiest place to capture adult gnats as they make their way to the brightly colored card is to place these sticky traps below the plant. 

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Biological treatments are an excellent way to control and eliminate fungus gnats. They are often an insect-parasitic nematode that is placed into the soil in a solution. Once they’ve been introduced, they get to work eradicating any and all fungus gnat larvae in the soil. 

Maintain a healthy and clean soil. Making sure your soil is free of fungus gnats is a smart approach to avoid them. It’s crucial to replace the dirt after buying home plants from a nursery or elsewhere to ensure that the soil is clean and healthy. 

Remove the top layer of dirt and store it outdoors or dispose of it if you already have an infestation of these annoying gnats. Repotting your plants is a terrific approach to ensure you’ve removed all of the contaminated soil and that your plant has enough area to continue growing. 

Stop the spread of the disease before it gets out of hand.

After you’ve identified and treated your houseplants for fungus gnats, the next step is to prevent them from spreading to other plants. Putting the afflicted plant in quarantine from all other plants is an excellent approach to achieve this. As a precautionary step, you may also begin treatments for the other pants. 

Getting Rid of Fungus Gnats

A sure-fire strategy to keep these gnats away is to prevent fresh infestations or future infestations of new plants. Keep trash such as sticks, fallen leaves, or flowers out of the path to avoid them from happening now or in the future. Instead of overwatering your plants, use a sprayer to softly mist them throughout the day. 


When you purchase a new plant or even if you have had your home plants for a long, you may see minute gnats surrounding the plants, particularly when you water or move them about. Fungus gnats may be a pain in the neck for both you and your plants. 

There are ways to prevent these pesky insects from swarming your home and plants. Some are Natural Techniques, while others may be more chemically made. Either way, ensuring your plants are healthy and grow to their full potential shouldn’t result in insects taking over. Once the gnats are gone, all their larvae are removed or prevented from hatching; your plant can continue to grow the way they are meant to. 

You’ve got a lot of critters and insects to get rid of. Check out our articles on how to get rid of brown recluse spiders, waterbugs, and armadillos that may be causing problems in your yard.


The “how to get rid of fungus gnats hydrogen peroxide” is a method that can be used to kill fungus gnats. The process involves using hydrogen peroxide and water.

Frequently Asked Questions

What kills fungus gnats instantly?

A: This is a difficult question to answer.

What is the fastest way to get rid of gnats?

A: You should avoid gnats as much as possible because they are annoying and can spread disease. I suggest that you try to eliminate them by misting the air in your home with a water bottle, or you could also purchase an insecticide spray which is designed for this purpose.

What causes fungus gnats in house?

A: Fungus gnats are small insects that live in wet, humid areas. They will lay eggs on damp surfaces near puddles and moist soil; they can reproduce quickly when conditions are right. Treatment for fungus gnat infestation is to control the breeding grounds by eliminating sources of moisture around your home and transforming the environment into a dry area with no standing water.

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