Abstract: A compound having pesticidal activity and which has the following general formula: ##STR1## wherein: R.sub.1 is selected from hydrogen, C.sub.1-6 alkyl, halogen, C.sub.1-6 alkoxy, C.sub.2-6 alkoxycarbonyl, amino, nitro, CF.sub.3, and C.sub.1-5 -(alkyl and dialkyl)-amino;X is a divalent hydrocarbon radical having 1 to 8 carbon atoms in its backbone, which may be interrupted by 1 or 2 of O or S, and which may be substituted by 1 or more halogens, C.sub.1-4 alkyl groups or C.sub.1-4 alkoxy groups;Y is O, S, CH.sub.2, SO, or SO.sub.2 ;Z is O, S, CH.sub.2, SO, or SO.sub.2 ;R.sub.2 is selected from hydrogen, halogen, C.sub.1-6 alkyl, C.sub.1-6 alkoxy, C.sub.2-6 alkoxycarbonyl, amino, nitro, and CF.sub.3 ; andR.sub.3 is selected from hydrogen, halogen, C.sub.1-6 alkyl, C.sub.1-6 alkoxy, C.sub.2-6 alkoxycarbonyl, amino, nitro, C.sub.1-5 -(alkyl and dialkyl)amino, and CF.sub.3.