Asked by: Layla Zalewski
asked in category: General Last Updated: 9th March, 2020

Does peroxide kill fungus gnat larvae?

Mix one part 3% hydrogen peroxide with four parts water. Allow the top layer of your soil to dry, and then water your plants with this solution as you normally would. The soil will fizz for a few minutes after application; this is normal. Contact with hydrogen peroxide will kill fungus gnat larvae on contact.

Click to see full answer.


Also question is, how does hydrogen peroxide get rid of fungus gnats?

Water your plant with a mixture of one part hydrogen peroxide and four parts water. The solution will kill the larvae, but is harmless to your plant. Reapply the hydrogen peroxide solution once a week until you see that the fungus gnats are gone. Place yellow sticky traps near the infested plant.

Furthermore, how do you get rid of gnat larvae in soil? Mix one part peroxide with four parts water, and pour it through the soil at the root zone until it begins to come out of the base of the pot. The peroxide kills fungus gnat larvae on contact. Neem oil is also an effective soil drench to combat fungus gnat larvae.

Accordingly, can you drown fungus gnat larvae?

the fungus gnat larvae all drown. you have to get rid of all the adults so they don't just lay more eggs into your soil again. keeping the potting soil more on the dry side helps a lot. the larvae thrive in overwatered pots.

What do fungus gnat larvae eat?

Fungus gnat larvae feed on plant roots, other organic matter and fungi found in the soil. Fungus gnat pupae do not feed and the adult stage generally feeds on flower nectar. Larval stage feeding can sometimes damage plants and stunt their growth.

28 Related Question Answers Found

Does cinnamon kill fungus gnats?

Are fungus gnats attracted to vinegar?

Can I water my plants with hydrogen peroxide?


At what temperature do gnats die?

Will hydrogen peroxide kill bugs in soil?

How long do fungus gnat eggs live?


Does rubbing alcohol kill fungus gnats?

Why do fungus gnats fly in your face?

How do I get rid of drain flies?


What do gnat eggs look like?

Why do gnats annoy people?

How does apple cider vinegar get rid of fungus gnats?


What does it mean when gnats fly around your dog?