Fungicidal compositions of the general formula (1): wherein one of W, X, Y and Z is N and the others are CR8; R8 is H, halo, C1-4 alkyl, C1-4 alkoxy or halo(C1-4)alkyl, provided that when X is CH, Z is N, R is NHNH2, R1 is phenyl and R2 is Cl, W and Y are not both CCH3; one of R and R2 is NR3R4 and the other is halo, C1-8 alkyl, C1-8 alkoxy, C1-8 alkylthio, C2-8 alkenyl, C2-8 alkynyl or cyano; R1 is aryl, heteroaryl, morpholino, piperidino or pyrrolidino; R3 and R4 are independently H, C1-8 alkyl, C2-8 alkenyl, C2-8 alkynyl, aryl, aryl(C1-8)-alkyl, C3-8 cycloalkyl, C3-8 cycloalkyl(C1-6)alkyl, heteroaryl, heteroaryl(C1-8)alkyl, NR5R6, provided that not v both R3 and R4 are H or NR5R6, or R3 and R4 together form a C3-7 alkylene or C3-7 alkenylene chain optionally substituted with one or more C1-4 alkyl or C1-4 alkoxy groups, or, together with the nitrogen atom to which they are attached, R3 and R4 form a morpholine, thiomorpholine, thiomorpholine S-oxide or thiomorpholine S-dioxide ring or a piperazine or piperazine N—(C1-4)alkyl (especially N-methyl) ring; and R5 and R6 are independently H, C1-8 alkyl, C2-8 alkenyl, C2-8 alkynyl, aryl, aryl(C1-8)-alkyl, C3-8 cycloalkyl, C3-8 cycloalkyl(C1-6)alkyl, heteroaryl or heteroaryl(C1-8)alkyl; any of the foregoing alkyl, alkenyl, alkynyl or cycloalkyl groups or moieties (other than for R8) being optionally substituted with halogen, cyano, C1-8 alkoxy C1-4 alkylcarbonyl, C1-6 alkoxycarbonyl, C1-6 haloalkoxy, C1-6 alkylthio, tri(C1-4)alkylsilyl, C1-6 alkylamino or C1-6 alkylamino, any of the foregoing morpholine, thiomorpholine, piperidine, piperazine and pyrrolidine rings being optionally substituted with C1-4 alkyl (especially methyl), and any of the foregoing aryl or heteroaryl groups or moieties being optionally substituted with one or more substituents selected from halo, hydroxy, mercapto, C1-4 alkyl, C2-6 alkenyl, C2-6 alkynyl, C1-6 alkoxy, C2-6 alkenyloxy, C2-6 alkynyloxy, halo(C1-4)alkyl, halo(C1-6)alkoxy, C1-6 alkylthio, halo(C1-4)alkylthio, hydroxy(C1-6)alkyl, C1-4 alkoxy(C1-6)alkyl, C1-6 cycloalkyl, C3-4 cycloalkyl(C1-4)alkyl, phenoxy, benzyloxy, benzoyloxy, cyano, isocyano, thiocyanato, isothiocyanato, nitro, —NHCOR″′, —NHCONR″′ R″″, —CONK″′R″″, SO2R″′, —OSO2R″′, —COR″′, —CR″′═NR″ or —N═CR″′R″″, in which R″′ and R″″ are independently hydrogen, C1-4 alkyl, halo-(C1-4)alkyl, C1-4 alkoxy, halo(C1-4)alkoxy, C1-4 alkylthio, C3-4 cycloalkyl, C3-6 cycloalkyl(C1-4)alkyl, phenyl or benzyl groups beings optionally substituted with halogen, C1-4 alkyl or C1-4 alkoxy.