Cyhalofop-butyl is aryl phenoxy - propionic acid herbicide.Selective herbicide in rice field can only be used in stem and leaf areas, the bud before the treatment is invalid, the main control barnyard grass, thousand gold and other grass weeds.
Cyhalofop-butyl is the only aryl phenoxylpropionic acid herbicide with high safety to rice.
Fenoxaprop-P-ethyl as a hybrid epoxyphenoxypropionic acid herbicide, it mainly inhibits the synthesis of fatty acids by inhibiting the key enzyme - acetyl-coa carboxylase.The agent was absorbed and transferred to the meristem tissues and the growing points of roots through the stems and leaves, and acted rapidly. The growth stopped 2-3 days after application, the leaves of 5-6 days after application lost green and turned purple, the meristem tissues turned brown, and the leaves gradually died, making it a highly selective processing agent for stems and leaves.