In formula (I) Wherein R1Represents a hydrogen atom or a C1-C3 alkyl group; R2, R3, R4And R5Independently represents a hydrogen atom, a halogen atom, a C1-C3 alkyl group optionally having one or more halogen atoms, a C3-C4 cycloalkyl group optionally having one or more halogen atoms or a Or a C1-C3 alkoxy group optionally having a halogen atom; Z1Represents a C1-C3 alkyl group; m represents an integer of 1 to 4. ]Have an excellent controlling effect against plant diseases.