The invention relates to novel compounds of the formula (I) in which W, X, Y, Z and CKE have the meanings given above, to a plurality of processes and intermediates for their preparation and to their use as pesticides and/or herbicides, and also to selective herbicidal compositions comprising, firstly, the compounds of the formula (I) and, secondly, at least one crop plant compatibility-improving compound. The invention further relates to the boosting of the action of crop protection compositions comprising compounds of the formula (I) through the additions of ammonium salts or phosphonium salts and optionally penetrants.