Vinegar Method

• 1). Find a jar that has a lid. It is best to use a jar that you can throw away, because you will be poking holes in the lid.
  
  
• 2). Using a sharp knife, carefully push holes into the lid.
  
  
• 3). Fill the jar with vinegar and place near your infected plants. Gnats are attracted to the scent of vinegar. The gnats will climb into the vinegar-filled jar but will not be able to climb out.
  
  

Other Ways to Combat Fungus Gnats

• 1). Keep a small bowl of vegetable oil around your kitchen sink. Once gnats become coated with the oil they are unable to breed, which can greatly reduce the infestation.
  
  
• 2). Refrain from over-watering your houseplants. Soggy house plants are a perfect breeding ground for fungus plants. Keep your plants moist, not soggy.
  
  
• 3). Store fruits and vegetables in the refrigerator. Gnats feed on fruits and vegetables, so to keep them at bay you will need to remove their food source. Keeping these items in the refrigerator will help prevent an overpopulation of fungus gnats.
  
  
• 4). Empty trash cans regularly, and never allow rotting food to sit inside your home.
  
  
• 5). Hang fly traps around your home. To combat adult fungus gnats, place fly traps around the areas that are infested with the gnats. When the gnats fly into these sticky traps, they get stuck and eventually die.