The present invention provides a compound having an excellent efficacy for controlling pests. A tetrazolinone compound of a formula (1): [wherein R1 represents an C6-C16 aryl group, an C1-C12 alkyl group, or a C3-C12 cycloalkyl group, etc., which each optionally be substituted； R2, R3, R4 and R5 represent independently of each other a hydrogen atom, a halogen atom or an C1-C3 alkyl group, etc.； R6 represents an C1-C6 alkyl group, a C3-C6 cycloalkyl group, a halogen atom, a C1-C6 haloalkyl group, an C2-C6 alkenyl group, an C1-C6 alkoxy group, or a C1-C6 haloalkoxy group, etc.； R7, R8 and R9 represent independently of each other a hydrogen atom, a halogen atom, or an C1-C4 alkyl group, etc.； X represents an oxygen atom or a sulfur atom； and R10 represents an C1-C6 alkyl group, etc.] shows an excellent controlling efficacy on pests.COMPUESTOS DE TETRAZOLINONA Y SU USO COMO PESTICIDAS PARA CONTROLAR PLAGAS
