A tetrazolinone compound represented by formula (1):wherein R1 represents a C1-C6 alkyl group R2, R3, and R4 are the same or different and represent a hydrogen atom R5 represents a C1-C3 alkyl group optionally having one or more halogen atoms Y represents #-C(RA1RA2)—Z— in which left end and Q are bound to each other, and RA1 and RA2 each represents a hydrogen atom Q represents a divalent C3-C10 carbocyclic group X represents an oxygen atom and A represents a C6-C10 aryl group, has excellent control activity against pests.
