What is the main purpose of rodenticides in pest management?

The primary purpose of rodenticides in pest management is to destroy rodents. These chemicals are specifically formulated to target rodent populations, helping to manage and control their numbers in various environments, including agricultural settings, homes, and other locations where rodents may pose a problem. Effective rodenticides can reduce the risks associated with rodent infestations, such as disease transmission and damage to property and crops. By specifically targeting rodents, these products play a crucial role in protecting human health and maintaining the integrity of agricultural operations.

In contrast, the other options focus on different pest categories. Controlling snails pertains to molluscicides, while controlling mites involves using miticides, which are intended for arachnids. The option related to killing weeds refers to herbicides, which aim at controlling unwanted plant growth and is not relevant to rodent management. Each chemical is tailored for specific pest categories, emphasizing the importance of using the correct product for effective pest control.