Benzoylurea is widely used as an insect growth regulator in agriculture to control pest populations. It works by inhibiting the synthesis of chitin, a crucial component of the insect exoskeleton, thereby preventing larvae from developing into adults. This makes it particularly effective against pests like caterpillars, beetles, and flies in crops such as cotton, fruits, and vegetables. Additionally, it is used in public health programs to manage mosquito populations, reducing the spread of vector-borne diseases. Its selective action minimizes harm to beneficial insects, making it an environmentally friendly pest control option.