12311456789101233A tetrazolinone compound represented by formula (1) (in the formula R R R and R each represent a halogen atom a C1 C6 alkyl group or the like R and R each represent a hydrogen atom a halogen atom a C1 C3 alkyl group or the like R represents a C1 C3 alkyl group which may have one or more halogen atoms or the like R R and R each represent a hydrogen atom a halogen atom or the like R represents a C1 C3 alkyl group or the like and R represents a phenyl group which may have one or more atoms or groups selected from group (P) a phenoxy group which may have one or more atoms or groups selected from group (P) or the like). The tetrazolinone compound has an excellent pest control effect.