Zhudan 25%WP is a novel new chemistry insecticide having systemic action with translaminar activity and with contact and stomach action. It can control various pests with piercing-sucking mouth parts, such as aphids, rice planthoppers, leafhoppers, whiteflies, Scale insect, orange spiny whitefly, pear psyllid, thrips, leaf miner, flea beetle, rice water weevil, and rice leaf beetle etc. It has a unique insecticidal mode of action that can destroy the nervous system of insects and knock them down quickly. The mouth parts of piercing-sucking pests would be paralyzed and permanently blocked, and then they immediately stop damaging the crop due to inability to feed normally and starve to death.