Borax Ant Killer Ingredients: 1 cup of very warm water ½ cup of sugar 2 tablespoons of borax powder (found in laundry aisle) Mix together until dissolved. Soak cotton ball, place on stiff paper & put near all ant trails. Ants will flock to eat & then take back to colony & kill off. Keep remainder in frid. You may need to put out a few times.