The answer to 'how to kill ant' is to use an effective ant killer product or bait. Start by identifying the type of ants and their entry points, then apply a targeted ant control solution. This may involve setting out bait traps, spraying insecticide around the perimeter of your home, or using a granular product in your yard.
Be sure to follow the product instructions carefully and take necessary safety precautions, such as wearing gloves and avoiding contact with skin or eyes. Repeat the treatment as directed, typically every 2-4 weeks, to eliminate the entire ant colony. If the problem persists or you have a large infestation, it's best to contact a professional pest control service for more effective and long-lasting control.