Abstract: The invention relates to novel triazolyl thioamides of the general formula (I), ##STR1## wherein Q represents hydrogen or a heterocyclic group optionally bearing one or more C.sub.1-4 alkyl substituent(s), or a group of the formula SR.sup.1, whereinR.sup.1 stands for straight or branched chained alkyl group comprising 1 to 6 carbon atom(s), or a group of the formula NR.sup.2 R.sup.3, whereinR.sup.2 and R.sup.3 each represent hydrogen, straight or branched chained C.sub.1-4 alkyl or C.sub.2-6 alkenyl group,Y denotes C.sub.1-4 alkyl bearing one or more hydroxyl or C.sub.1-4 alkoxy substituent(s), phenyl-(C.sub.1-4 alkyl) optionally bearing on the phenyl ring one or more C.sub.1-4 alkoxy group(s), or phenoxy-(C.sub.1-4 alkyl) optionally substituted on the phenyl ring by a C.sub.