| abstract |
Compounds of formula (I) in which A is =N- or (a); W is a group (W1), (W2) or (W3); R11 is hydrogen, fluorine, chlorine, bromine or methyl; and R1 to R5, R13,n1 and n13 are as defined in claim 1, and the pyrazole N-oxydes, agrochemically tolerated salts and stereoisomers of these compounds of formula (I), have good pre- and post-emergent selective herbicidal properties. The preparation of these compounds and their use as herbidical active substances are described. |