Phenothrin is widely used as an insecticide in both agricultural and domestic settings. It is particularly effective against a variety of pests, including mosquitoes, flies, and cockroaches. In agriculture, it helps protect crops by controlling insect populations that can damage plants and reduce yields. In households, phenothrin is commonly found in products like insect sprays, mosquito coils, and pet shampoos to eliminate or repel insects. It is also used in public health programs to combat vector-borne diseases by targeting insects that transmit illnesses such as malaria and dengue fever. Additionally, phenothrin is applied in veterinary medicine to treat ectoparasites like fleas and ticks on animals. Its fast-acting nature and low toxicity to mammals make it a popular choice for pest control in various environments.