are worker ants poisonous
The best part of it all is that a poisonous ant bait has a 2-pronged attack. If a poisoned ant dies in the nest, its body will be eaten by the others, thus spreading the poison even further. Alternatively, even if the poisoned ant dies outside the nest, the workers will still carry the body back to the nest to be consumed. Within anywhere from 2 days (for smaller nests) to 3 weeks (multiple large colonies), all the ants will be subject to the poison one way or another and this includes the queen.