Remove overripe fruit, vegetables, and food scraps
Store produce in the refrigerator
Empty trash and compost regularly
Clean drains with boiling water, baking soda, and vinegar
Scrub sink drains and garbage disposals
Fix leaks and eliminate standing water
Dry out damp soil in houseplants
Let houseplant soil dry between waterings
Replace heavily infested potting soil
Use yellow sticky traps near infested areas
Set out apple cider vinegar traps with a drop of dish soap
Vacuum up adult gnats
Clean counters, floors, and spills daily
Seal food in airtight containers
Close windows and repair screens
Remove decaying organic matter from indoors and outdoors
Check for fungus in potted plants and remove affected material
Use fans to reduce flying insects indoors
Apply insecticidal soap or neem oil to affected plants if needed
Treat drains or soil repeatedly until gnats are gone