Remove overripe fruit, vegetables, and other food waste
Store produce in sealed containers or in the refrigerator
Empty trash and compost bins regularly
Clean drains with a drain brush and enzyme cleaner
Fix leaks and eliminate standing water
Dry out damp soil in houseplants
Replace or top-dress houseplant soil if needed
Use yellow sticky traps near infested plants and windows
Vacuum or swat visible gnats
Keep sinks, counters, and floors free of crumbs and spills
Seal cracks around windows, doors, and screens
Use fine mesh screens on windows and vents
Water houseplants only when the top soil is dry
Remove decaying plant matter from pots and trays
Use apple cider vinegar traps for adult gnats
Dispose of infested garbage promptly
Check for hidden sources like garbage disposals and mop buckets
Keep bathroom and kitchen areas well ventilated
Use a dehumidifier if indoor humidity is high
Repeat treatments until the infestation is gone