A tetrazolinone compound represented by formula (1):wherein R1 and R2 each independently represents a hydrogen atom, a C1-C4 alkyl group optionally having one or more halogen atoms, etc. R3 represents a hydrogen atom, a C1-C4 alkyl group optionally having one or more halogen atoms, etc. R4 represents a halogen atom, a C1-C4 alkyl group optionally having one or more halogen atoms, etc. h represents any one of integers of 0 to 4 X represents a nitrogen atom or CR5 and R5 represents a hydrogen atom, a halogen atom, etc. has excellent control activity against pests.
