Widely used as an organophosphate insecticide, this chemical is primarily applied in veterinary and agricultural settings to control external parasites in livestock and fish farming. It is especially effective against sea lice in aquaculture, particularly in salmon farming, where it is administered in bath treatments to reduce infestations. The compound acts as a cholinesterase inhibitor, disrupting the nervous system of target pests. It is also used in the control of flies, lice, and mites on cattle, sheep, and poultry. Due to its activity and mode of application, it plays a key role in integrated pest management programs where resistance to other insecticides has developed. Careful use is required to minimize environmental impact, especially in aquatic ecosystems.