What is the primary purpose of pesticides?

The primary purpose of pesticides is to control, repel, or destroy pests. This encompasses a wide range of organisms, including insects, weeds, fungi, and rodents, that can harm crops, livestock, or human health. By effectively managing these pests, pesticides help protect agricultural yields and reduce losses, ensuring a more reliable food supply. Additionally, the use of pesticides can contribute to the stability of ecosystems by managing pest populations that might otherwise disrupt the balance between various species.

The other options focus on aspects that are not the main function of pesticides. Enhancing the flavor of crops, increasing soil fertility, and providing nutrients to plants are all related to agronomy and plant health management but do not directly pertain to the objective of pesticides. These represent different practices, such as fertilization or soil amendment, designed to support plant growth rather than specifically targeting harmful organisms.