The queen ant is "THE NEST". All she does is have babies (like 200,000). You will never come across a queen ant. She is deep down in the nest someplace. Makes Wolfenstein maze look easy. So there is only one Queen and she is the only ant that eats. The other ants are soldiers, cleaners, builders, food gathers, and extra swamp staff members.
. If it is a black ant usually icing sugar and baking soda powder combined together dry is the poison. you need about a teaspoon of each dry powder and stir it together in a tablespoon. Then spread it where you see the ants walking. Ants can taste the sugar but cannot taste the baking soda but icing sugar is SLIGHTLY MOIST so some of it rubs off onto the larger baking soda crystal and the ant carries in both to feed to the Queen.
. the ants have stomach acids like we do and baking soda fizzes when it contacts acid and the queen has a hard shell body so the fizzing causes the ant to swell and EXPLODE., KILLING THE QUEEN and it takes about 14 days for the nest to die off. As all the other ants live about 14 days living off the baby fat and self digest. They are always being replaced by new workers who take over their job. Without the fresh supply of new workers, the last ant will die within 14 days.
If it is Red ants, they are meat eater so a small piece of raw meat mixed with baking soda into the blood should work the same way.
Termites, rotting wood and baking soda I guess.