Disclosed are compounds of Formula1,N-oxides, and salts thereof,wherein Z is O or S; and Rl, R2, R3, Q and n are as defined in the disclosure. Also disclosed are compositions containing the compounds of Formula1and methods for controlling a parasitic nematode comprising contacting the parasitic nematode or its environment with a biologically effective amount of a compound or a composition of the invention.本發明揭露式1之化合物、其N-氧化物及其鹽類,其中Z係O或S;及R1、R2、R3、Q及n係如本發明揭露中之定義。本文亦揭露含式1的化合物之組合物及控制寄生性線蟲之方法,包括以生物有效劑量之本發明化合物或組合物接觸寄生性線蟲或其環境。