A small, shallow dish
5 Tbsp of baking soda
5 Tbsp of powdered (or confectioners) sugar
Mix the two powders together and then place small amounts against the walls or other areas where you would not normally walk but where you would normally see the ants. You can also leave some in a dish, as the picture shows.
The ants will be attracted to the sugar and will eat some of it and collect more to take home to feed others, so all of them will get their share.
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 literally explode
NOTE: Powdered sugar is essential. You cannot use regular white sugar because of the larger grains
of sugar. The powdered sugar mixes exactly with the baking soda.
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