Formula (I) [wherein R1 represents a hydrogen atom or a C1-C3 alkyl group; R2, R3, R4 and R5 each independently have a hydrogen atom, a halogen atom or one or more halogen atoms; A C1-C3 alkyl group which may have one or more halogen atoms, a C3-C4 cycloalkyl group which may have one or more halogen atoms, or a C1-C3 alkoxy group which may have one or more halogen atoms; Z2 represents a halogen atom or a C1-C3 alkyl group; m represents an integer of 0 to 3; ] Has an excellent control effect against plant diseases.