A tetrazolinone compound represented by formula (1):wherein R1 represents a C1-C3 alkyl group optionally having a fluorine atom, etc.； R2 and R4 represents a hydrogen atom, etc.； R3 represents a hydrogen atom, etc.； Z1 represents a C1-C3 alkyl group optionally having a halogen atom, etc.； Z2 represents a C1-C3 alkoxy group optionally having a halogen atom, a C3-C4 alkynyloxy group, etc.； Z3 represents a hydrogen atom, a C1-C3 alkyl group optionally having a halogen atom, etc.； and X represents an oxygen atom, etc., has excellent control activity against pests.
