The invention relates to new O-(pyrazol-4-yl) N-(.alpha.-cyanoalkylsulphenyl)-carbamates of the general formula (I) ##STR1## in which R.sup.1 represents alkyl or cycloalkyl, R.sup.2 represents alkyl and R.sup.3 and R.sup.4 each represent alkyl or together represent an alkylene radical linked in two places, which can be used as agents for combating pests.
                            本发明涉及一种新的通式(I)的O-(
吡唑-4-基)N-(α-
氰基烷基磺酰基)-
氨基甲酸酯,其中R1代表烷基或环烷基,R2代表烷基,R3和R4各自代表烷基或共同代表在两个位置连接的烷基链,可用作防治害虫的药剂。