Remove overripe fruit, food scraps, and trash
Wipe counters, sinks, and drains
Empty indoor compost and garbage regularly
Let houseplant soil dry out between waterings
Replace or refresh damp potting soil
Use yellow sticky traps near plants and windows
Set out apple cider vinegar traps with a drop of dish soap
Pour boiling water or a drain cleaner into affected drains
Clean garbage disposals and sink drains thoroughly
Fix leaks and reduce indoor moisture
Run a dehumidifier if needed
Vacuum up visible gnats
Seal cracks, gaps, and entry points
Use window and door screens
Remove standing water from trays, buckets, and pet dishes
Store fruit in the refrigerator
Discard infested houseplant soil if necessary
Use insecticidal soap or neem oil on houseplants if needed