N-(3,4-Dihydro-2,2-dioxo-1,2-benzoxathiin-8-ylsulfonyl)-N'-pyrimidinylureas, N-(3,4-dihydro-2,2-dioxo-1,2-benzoxathiin-8-ylsulfonyl)-N'-triazolylureas and N-(3,4-dihydro-2,2-dioxo-1,2-dioxo-1,2-benz-oxathiin-8-ylsulfonyl)-N'-triazinylureas of the formula ##STR1## wherein R.sup.1 is hydrogen, halogen, nitro, 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 haloalkoxy, C.sub.1 -C.sub.4 alkoxycarbonyl, C.sub.1 -C.sub.4 alkylthio, C.sub.1 -C.sub.4 alkylsulfinyl, C.sub.1 -C.sub.4 alkylsulfonyl or C.sub.2 -C.sub.5 alkoxyalkoxy,R.sup.2 and R.sup.3 are each independently of the other hydrogen or C.sub.1 -C.sub.4 alkyl,R.sup.4 is hydrogen, methyl or ethyl,W is oxygen or sulfur, andA is a radical ##STR2## in which formulae the substituents E.sup.1, E.sup.2, X.sup.1, X.sup.2, X.sup.3, X.sup.4, X.sup.5, X.sup.6, X.sup.7, X.sup.8, Y.sup.1, Y.sup.2, Y.sup.3, Y.sup.4, Y.sup.6 1, Y.sup.8, Y.sup.8 1, Z.sup.3 and Z.sup.5 are customary organic radicals, and the salts thereof with amines, alkali metal bases or alkaline earth metal bases or with quaternary ammonium bases have good pre- and postemergence selective herbicidal and growth regulating properties.