Alpha cypermethrin can be used to control pests on crops such as cotton, vegetables, fruit trees, tea trees, soybeans and sugar beets. It has good control effect on various pests such as Lepidoptera, Hemiptera, Diptera, Orthoptera, Coleoptera, Thysanoptera and Hymenoptera on cotton and fruit trees. It has special effects on cotton bollworm, pink bollworm, cotton aphid, lychee stink bug and citrus leaf miner.