A tetrazolinone compound represented by formula (1):Wherein E represents a 5-membered aromatic heterocyclic group such as a pyrazolyl group, a thiazolyl group, or an imidazolyl group； R4 and R5 represent a hydrogen atom； R6 represents an alkyl group having 1-12 carbon atoms； R7, R8, and R9 represent a hydrogen atom； R10 represents an alkyl group having 1-3 carbon atoms, or a haloalkyl group having 1-3 carbon atoms； Y represents an oxygen atom； and Q represents an oxygen atom, has excellent control activity against pests.
