Mix the ingredients together and place in the cut down water bottle.
Place small amounts against the walls or other areas where you would not normally walk but where you would normally see the ants.
*The sugar and baking soda powders are similar in size and, once mixed together, the ants cannot separate the two items, so, as they eat the sugar, they will also ingest the baking soda, which they would otherwise never touch. This is the reason for using powdered sugar.
*Once the ants eat the baking soda it will react with the formic acid in their stomachs and cause gas. The bodies of ants are unlike humans and they cannot eliminate gas so it will build up inside them and cause them to die.