A herbicide comprising the sulfonylurea derivatives of the formula (I):
wherein Q is -CH = CH- or -S-, R is C1-3 alkyl, and X is -OCH3 or -CH3; or a salt thereof, are useful for the control of undesired vegetation, for example, black glass (Alopecurus myosuroides) or downy brome (Bromus tectorum L.) in the presence of many valuable small grain cereals such as wheat, barley, oats and rye. The herbicide is also unexpectedly tolerant to small grain cereals such as wheat, barley, oats and rye.
由式(I)的磺酰
脲衍
生物组成的
除草剂:
其中 Q 为 -CH = CH- 或 -S-,R 为 C1-3 烷基,X 为 -O 或 -
CH3;或其盐,可用于在许多有价值的小粒谷物(如小麦、大麦、燕麦和黑麦)存在的情况下,控制不受欢迎的植被,例如黑
玻璃(Alopecurus myosuroides)或绒毛锦鸡儿(Bromus tectorum L.)。该
除草剂对小麦、大麦、燕麦和黑麦等小粒谷物的耐受性也出乎意料。