What is the role of Nicotinoids in pest control?

Nicotinoids play a crucial role in pest control by targeting the nervous system of insects. These compounds, which are synthetic derivatives of nicotine, work by binding to specific receptors in the insect nervous system, leading to overstimulation of the nerves. This action disrupts normal nerve signaling, ultimately causing paralysis and death of the pest. This mechanism makes nicotinoids particularly effective against a broad range of insect pests.

The other roles mentioned, such as repelling pests, acting as growth enhancers for plants, or preventing weed growth, do not accurately describe the function of nicotinoids. While some pesticides may repel pests or influence plant growth, nicotinoids specifically function by directly affecting insect neurophysiology, which is why they are widely used for insect pest management.