Substituted sulfonylureas of the general formula I ##STR1## where n and m are each 0 or 1, andR.sup.1 is hydrogen, alkyl, alkenyl or alkynyl;R.sup.2 is halogen or trifluoromethyl when m is 0, or, when m is 1, alkyl, alkenyl or alkynyl and, when X is 0 or S and m is 1, is trifluoromethyl or chlorodifluoromethyl;X is 0, S or N--R.sup.4, where R.sup.4 is hydrogen or alkyl;R.sup.3 is hydrogen, halogen, alkyl, haloalkyl or alkoxy;A is haloalkyl, halogen or ##STR2## where Z is oxygen or alkylimino N--R.sup.6 ;R.sup.5 is hydrogen, substituted or unsubstituted alkyl, substituted or unsubstituted cycloalkyl, alkenyl or alkynyl;R.sup.6 is hydrogen, alkyl, or together with R.sup.5 is a C.sub.4 -C.sub.6 -alkylene chain, where one methylene may be replaced by an oxygen atom or a C.sub.1 -C.sub.4 -alkylimino group, andR.sup.7 is hydrogen or halogen,and environmentally tolerated salts thereof, processes and intermediates for the manufacture of compounds I, and their use as herbicides and bioregulators.