Isothiazoles with an alkyl substituent in the 3-position, a cyano group in the 4-position, and a grouping --NHCONR.sup.3 R.sup.4 in the 5-position, R.sup.3 and R.sup.4 each being methyl or ethyl, possess herbicidal properties against dicotyledonous and monocotyledonous weeds.
在3位具有烷基取代基、4位具有
氰基、5位具有-NHCONR.sup.3 R.sup.4基团的
异噻唑类化合物中,其中R.sup.3和R.sup.4分别为甲基或乙基,对双子叶和单子叶杂草具有除草特性。