What is a common type of bait used in rodent control?

Rodenticides are specifically formulated substances designed to control rodent populations effectively. They work by targeting the biological systems of rodents, ultimately leading to their mortality after consumption. Rodenticides come in various types, including anticoagulants and non-anticoagulants, and they are an essential part of integrated pest management strategies used to reduce rodent infestations in residential and commercial settings.

The other options listed do not serve the purpose of controlling rodent populations. Insecticides are intended for use against insects, pheromones are chemical signals used mainly for the attraction or repulsion of insects, and herbicides are designed to control plant growth. Therefore, rodenticides are the appropriate choice for effective rodent control through baiting.