What is the main purpose of applying pesticides to plants?

The primary purpose of applying pesticides to plants is to control or eliminate pests and diseases that can cause significant harm to plant health and productivity. Pesticides are formulated to target specific organisms that pose threats to crops, gardens, and landscapes. By effectively managing these harmful pests and pathogens, pesticides help to protect plants, ensuring that they can thrive and produce better yields.

While other options speak to aspects related to plant health and maintenance—such as enhancing soil quality, improving aesthetics, or encouraging growth—the direct intent of pesticide use is focused on pest and disease management. Enhanced soil quality, improved aesthetics, and plant growth can be influenced by other practices, but the application of pesticides specifically addresses threats from insects, weeds, fungi, and other detrimental agents. Consequently, option B accurately reflects the core function of pesticides in agriculture and horticulture.