Used primarily as a pesticide in agricultural settings to control insects that damage crops. Effective against a wide range of pests including mosquitoes, ticks, and lice, it has been utilized in vector control programs to reduce the spread of diseases such as malaria and typhus. Its stability and long residual activity make it suitable for prolonged pest suppression, especially in areas with high insect resistance to other chemicals. However, due to environmental persistence and toxicity concerns, its use is now restricted to specific public health applications in certain regions.