Ant Stop! Bait Station destroys ants and their nests. These ready to use pre-baited stations contain a bait which is highly attractive to ants. ‘Worker’ ants collect the bait and take it back to the nest and share it with the other ants in the nest, including the queen. The activity of ants outside the nest will normally stop within 3-6 days and the whole colony is virtually eliminated in one to three weeks.