What type of pesticide is specifically used for controlling rodents?

The correct answer is the type of pesticide specifically designed for controlling rodents, which is known as rodenticide. Rodenticides are formulated to manage populations of rodents such as mice and rats effectively. They work by either causing death through toxic effects or discouraging feeding behavior, ultimately leading to a decrease in rodent numbers.

In pest management, it's crucial to use the specific class of pesticide that targets the intended pest for effective control. Insecticides, for example, are meant to control insects and will not be effective against rodents. Similarly, herbicides are targeted towards weeds and unwanted plants, while fungicides are used to combat fungal infections in plants. Each of these types plays a vital role in a comprehensive pest management strategy but is designed for distinctly different categories of pests.