Hydrogen peroxide (the standard 3% topical variety) can be used as a soil drench. 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.
How do you get rid of gnats in potting soil?
If those pests just won’t quit, you can use a solution of water and soap in a spray bottle to spray into the top layer of soil (or pour it directly on top). You can also do this with an organic insecticidal soap or Neem oil mixture; these natural pesticides should be effective after a few treatments.
What is the best product to kill gnats?
Lure and kill gnats with a mixture of apple cider vinegar, water, sugar, and dish soap. (Alternatively, achieve the same result simply by combining red wine and dish soap.) Pour diluted bleach down the sink or tub drain, if you find gnats hovering near plumbing fixtures.
What is the fastest way to get rid of gnats?
Homemade gnat killer spray: A mixture of half a cup of water, half a cup of isopropyl alcohol, and a teaspoon of dish liquid can be filled in a spray bottle. This mixture can be sprayed on the gnats directly to kill them.
What is a natural way to get rid of gnats?
In a small bowl, mix a half cup of warm water plus two tablespoons of apple cider vinegar, a tablespoon of sugar, and about six drops of liquid dish soap. Gnats will be lured in by the sugary mixture, but once they dip in for a drink, the sticky dish soap will trap them.
Will coffee grounds get rid of fungus gnats?
Unfortunately, coffee grounds often end up in the trash even though they can be used in various ways even after you have enjoyed your hot beverage. They can, for example, help to get rid of gnats in houseplants or in the garden.
Does cinnamon kill fungus gnats?
Chamomile and cinnamon are powerful natural fungicides, which kill off the gnats’ primary food source, therefore making the soil inhospitable.
Will baking soda kill fungus gnats?
Baking soda will not kill gnats or keep them away. But you can use baking soda to clean sinks and drains where gnats reside and multiply. … Allow the top 1 inch of soil to dry before watering plants, and clean emptied kitchen trashcans to discourage gnats.
How does hydrogen peroxide get rid of 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.
Can I water my plants with hydrogen peroxide?
Hydrogen peroxide helps encourage healthy root growth because of the extra oxygen molecule. Oxygen can help plant roots absorb nutrients from the soil. … For plants with root rot or fungal infections, use 1 tablespoon (15 ml.) per cup of water.