The present invention provides a compound having an excellent efficacy for controlling pests. Λ 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 С1-C6 alkoxy group, or а С1-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 RIO represents an С1-С6 alkyl group, etc.] shows an excellent controlling efficacy on pests.Винахід стосується сполуки тетразолінону формули (1), яка має чудову ефективність відносно боротьби зі шкідниками: EMBED ISISServer . (1)
