Abstract: Herbicidal triazole sulphonamides of the formula: ##STR1## and salts thereof, where: R.sup.1 represents hydrogen or a substituted or unsubstituted alkyl, alkenyl, alkynyl, cycloalkyl, aryl, aralkyl, acyl, alkoxycarbonyl, aminocarbonyl, sulphonyl or heterocyclic group;R.sup.2 represents hydrogen, halo, cyano, hydroxy, mercapto, a substituted or unsubstituted alkyl, alkenyl, alkynyl, alkoxy, alkylthio, alkylsulphinyl, alkylsulphonyl, acyl, alkoxycarbonyl, aminocarbonyl, aryl or amino group, or a heterocyclic group;R.sup.3 represents a substituted or unsubstituted heterocyclic, benzheterocyclic, aryl or aralkyl group; andR.sup.4 represents hydrogen, a substituted or unsubstituted alkyl, alkenyl, alkynyl, acyl, aroyl, alkylsulphonyl, alkoxycarbonyl, aminocarbonyl, aralkyl, or a group of the formula: ##STR2## where R.sup.1 and R.sup.2 are as defined hereinbefore, processes for their preparation and compositions containing them.

Abstract: Compounds of formula I ##STR1## in which X, Y and Z have various meanings, are described, as well as processes for their preparation and their use as insecticides and acaricides.

Abstract: Fungicidal compositions comprise a compound of formula I ##STR1## in which R.sup.1 and R.sup.3 are hydrogen, alkyl or alkenyl;R.sup.2 is alkyl optionally substituted by a 5 or 6 membered oxygen containing ring or by phenyl (optionally substituted) and one of R.sup.4 and R.sup.5 is--CN and the other is a carboxylic ester or amide group. Many of the compounds are novel.