Compounds having the formula: ##STR1## wherein: m=1 or 2;q=1 or 2;Y=a haloethylene or haloethenyl group;X is oxygen or sulfur;A=N or CH;R is H, CH.sub.3 or F;R.sub.1 is selected from the group comprising chlorine, bromine, fluorine, CF.sub.3, phenyl, C.sub.1 -C.sub.2 alkoxy, C.sub.1 -C.sub.2 haloalkoxy, alkylthio, haloalkylthio radical, wherein the halogen is Cl, Br or F;R.sub.2 is selected from the group comprising H, chlorine, bromine or fluorine; andR.sub.f is a C.sub.1 -C.sub.5 polyfluoroalkyl or a C.sub.2 -C.sub.4 polyfluoroalkenyl radical containing at least 3 fluorine aotms and, optionally, other halogen atoms selected from the group comprising Cl and Br. These compounds have good fungicidal activity.