A compound represented by Fomula (1) or a salt thereof is provided. R1 represents a C1-C6 alkyl group optionally substituted, a C1-C6 haloalkyl group or the like, R2 represents a halogen atom, a C1-C6 alkyl group optionally substituted, a C1-C6 alkyloxy group optionally substituted or the like, R3 represents a hydrogen atom, a halgenatom, C1-C6 alkyl group optionally substituted or the like, n represents an integer of 0 to 5, X represents an oxygen atom or a sulfur atom, Y represents a phenyl group or a pyridyl group that is substituted with substituent at an ortho position, and the bond with a broken line indicates a double bond or a single bond.本發明提供作為農園藝用殺菌劑有效之式(1)表示之化合物或其鹽。式中,R1表示也可經取代之C1~C6之烷基、C1~C6之鹵烷基等,R2表示鹵素原子、也可經取代之C1~C6之烷基、也可經取代之C1~C6之烷氧基等,R3表示氫原子、鹵素原子、也可經取代之C1~C6之烷基等,n表示0~5之整數,X表示氧原子或硫原子,Y表示在鄰位有取代基之苯基、吡啶基等,包括破折線部之鍵結代表雙鍵或單鍵。