Herbicide injury prevention: Miao Ruomiao quite spraying; paddy shallow depth of less than 3 cm or flooded heart leaves no spraying; spraying Land is not too dry; not spraying when there is heavy rain or dew on the leaves; paddy leakage field is not spraying. Zhejiang pyrithiobac grass ether. Master agent is volatile, photolysis, is 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. Xinxiang pyrithiobac grass ether. 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.