Herbicide injury prevention: Note crops sensitive period. Under normal circumstances, Xinxiang Quizalofop, crops germination, before filling clover and flowering stage particularly sensitive to herbicides, prone to injury. Master agent performance. Master agent is volatile, photolysis, quizalofop, if prone to physical or chemical reactions in the soil. Herbicide Classification: selective herbicide. Simply is a crop herbicide that can be used to kill some of them weeds. Herbicide. This lack of selectivity of herbicides on plants or selective small, grass seedlings regardless, "see the green to kill." Herbicide will kill all plants.