N-Phenylsulfonyl-B'-pyrimidinyl- and -triazinylureas of the formula I ##STR1## wherein A is 3,3,3-trifluoropropyl or 3,3-difluorobutyl,R.sup.1 is hydrogen, halogen, nitro, cyano, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -haloalkyl, C.sub.1 -C.sub.4 -alkoxy, C.sub.1 -C.sub.4 -alkylthio, C.sub.1 -C.sub.4 -alkylsulfinyl, C.sub.1 -C.sub.4 -alkylsulfonyl, --CO--R.sup.6, --NR.sup.7 R.sup.8, --CO--NR.sup.9 R.sup.10 or --SO.sub.2 --NR.sup.11 R.sup.12,R.sup.2 is hydrogen, halogen, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy, C.sub.1 -C.sub.4 -alkylthio, C.sub.1 -C.sub.4 -alkylsulfinyl or C.sub.1 -C.sub.4 -alkylsulfonyl,R.sup.3 and R.sup.4 independently of one another are each hydrogen, halogen C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -haloalkyl, C.sub.2 -C.sub.4 -haloalkoxy, C.sub.1 -C.sub.4 -alkylthio, C.sub.1 -C.sub.4 -haloalkylthio, C.sub.2 -C.sub.4 -alkoxyalkyl, C.sub.1 -C.sub.4 -alkoxy or --NR.sup.12 R.sup.13,R.sup.5 is hydrogen, C.sub.1 -C.sub.4 -alkyl or C.sub.1 -C.sub.4 -alkoxy,R.sup.6 is C.sub.1 -C.sub.4 -alkoxy, C.sub.1 -C.sub.4 -haloalkoxy, C.sub.1 -C.sub.4 -alkylthio, C.sub.2 -C.sub.6 -alkoxyalkoxy, hydrogen, C.sub.1 -C.sub.4 -alkyl or C.sub.1 -C.sub.4 -haloalkyl,R.sup.7, R.sup.8, R.sup.9, R.sup.10, R.sup.11, R.sup.12 and R.sup.13 independently of one another are each hydrogen or C.sub.1 -C.sub.4 -alkyl,E is nitrogen or the methine bridge, andZ is oxygen or sulfur;and also the salts of these compounds.