Fluorobenzoylurea insect growth regulator, belonging to chitosan polysaccharide enzyme inhibitor, inhibits the formation of chitosan. The purpose of pest control is achieved by controlling the normal molting and development of the larvae. It is particularly active against a variety of Lepidoptera pests and also has a good effect on the larvae of other whiteflies, Diptera, Hymenoptera and Coleoptera pests. However, it is ineffective against many parasitic insects, predatory insects and spiders. It is mainly used for vegetables, fruit trees, cotton, tea, etc. For example, during the peak hatching period of cabbage worms and small cabbage moths to the peak development period of 1st to 2nd instar larvae, spray with 5% emulsifiable concentrate at a dilution of 2000 to 4000 times. For the diamondback moth, beet armyworm and diamondback moth that have developed resistance to organophosphorus and pyrethrin, spray with 5% emulsifiable concentrate at a dilution of 1500 to 3000 times during the peak hatching period of eggs to the peak emergence period of 1st to 2nd instar larvae. For cotton bollworms and red bollworms during the peak incubation period of the second and third generations of eggs, spray 5% emulsifiable concentrate at a dilution of 1500 to 2000 times. The insecticidal effect can reach over 85% about 10 days after application.
