Remove overripe fruit, food scraps, and dirty dishes
Take out trash and recycling regularly
Clean drains with boiling water, baking soda, or a drain cleaner
Fix leaks and reduce excess moisture
Let potting soil dry out between waterings
Replace contaminated houseplant soil if needed
Remove decaying plant matter from indoor plants
Use sticky traps near windows, sinks, and plants
Set out apple cider vinegar traps
Vacuum visible gnats and empty the vacuum immediately
Seal cracks, gaps, and open screens
Store fruit in the refrigerator
Keep countertops, sinks, and floors clean and dry
Check for and eliminate breeding sources in garbage disposals and drains
Use fans to reduce gnat activity
Dispose of infested produce or plant material promptly