Es-fenvalerate is widely used as an insecticide in agricultural settings to protect crops from a variety of pests. It is particularly effective against Lepidoptera, Coleoptera, and Hemiptera species, which can cause significant damage to fruits, vegetables, and cereals. The chemical is applied through foliar sprays, ensuring that it comes into direct contact with the pests or is ingested by them as they feed on treated plants. Its residual activity helps in providing long-lasting protection, reducing the need for frequent applications. In addition to agriculture, es-fenvalerate is utilized in public health programs to control disease-carrying insects such as mosquitoes and ticks. It is often incorporated into formulations for mosquito nets, indoor sprays, and outdoor treatments to minimize the spread of diseases like malaria and Lyme disease. Es-fenvalerate is also employed in veterinary medicine to manage ectoparasites on livestock, such as lice, mites, and ticks. This helps in improving animal health and productivity by preventing infestations that can lead to skin irritations, infections, and reduced growth rates. Due to its potency, it is essential to follow proper application guidelines to minimize environmental impact and ensure safety for non-target organisms, including beneficial insects and humans.