Reviewers consistently rate Mosquito Bits or Mosquito Dunks as the most effective long-term solution. Creating a "tea" by steeping these in water for 24 hours and then watering your plants kills larvae in the soil using BTI bacteria.
For severe infestations, beneficial nematodes (microscopic worms) can be watered into the soil to hunt and eat gnat larvae. 2. Fruit Flies how do get rid of gnats
Weapons of Gnat Destruction: A Guide to Killing Fungus Gnats Reviewers consistently rate Mosquito Bits or Mosquito Dunks
Adding a 1-inch layer of sand or oyster shells on top of the soil prevents adults from laying eggs and keeps the surface dry. Best-Reviewed Solutions by Gnat Type 1
Getting rid of gnats effectively requires a dual approach: to stop them from breeding and treating the breeding grounds (soil or drains) to kill larvae and eggs. Best-Reviewed Solutions by Gnat Type 1. Houseplant (Fungus) Gnats These thrive in moist soil and decaying organic matter.
