Compounds of the formula I in which R1 is C1-C4alkyl; R2 is cyano or NH2C(S)—; R3 is hydrogen, C1-C4alkyl, C1-C4haloalkyl, C3- or C4alkenyl, C3- or C4alkynyl, C3-C8haloalkenyl, NC—CH2—, HOC(O)—CH2— or C1-C4alkoxy-C(O)—CH2—; W is a group  and R4 to R6, R60, R61, R70, X1, X2, n1 and A1—B1 are as defined in claim 1, and the pyrazole N-oxide, agronomically acceptable salts and stereomers of these compounds of the formula I, with the exclusion of the compound of the formula  have good selective herbicidal properties when used pre- and post-emergence. The preparation of these compounds and their use as herbicidally active ingredients are described.