Abstract: Certain N-acetonyl-substituted-amides of the formula: ##STR1## wherein A is a heterocycle, a phenylalkyl, a phenylalkoxy, naphthyl, cycloalkyl, alkoxyalkyl, alkyl, haloalkyl or alkenyl group; X, Y and Z are selected from the group consisting of hydrogen, halo, cyano, thiocyano, isothiocyano, methylsulfonyloxy, thio(C.sub.1 -C.sub.2) alkyl, (C.sub.1 -C.sub.2)alkoxy, carbamoyloxy, thiocarbamoylthio, hydroxy, azide, trifluoromethylcarboxy, (C.sub.1 -C.sub.4)alkylcarbonyloxy, phenylcarbonyloxy, phenoxy, thiophenyl, imidazolyl or triazolyl group as described herein; R.sup.1 and R.sup.2 are each independently a hydrogen atom or a (C.sub.1 -C.sub.6)alkyl group; and compositions containing these amides are fungicidally active, particularly against phytopathogenic fungi.