Used primarily as an insecticide in agricultural settings to control pests such as mites, aphids, and chewing insects on crops. Effective in managing vector-borne diseases like malaria and typhus by targeting mosquitoes and lice, especially in historical public health campaigns. Applied in residual sprays on walls and surfaces in endemic regions to reduce insect populations. Its use has declined significantly due to environmental persistence and toxicity concerns, leading to restrictions in many countries. Occasionally used in research settings for studying environmental contaminants and pesticide degradation pathways.