PROBLEM TO BE SOLVED: To provide a compound having excellent pest control power to noxious organisms and a pest control agent containing the compound.SOLUTION: There are provided a tetrazolinone compound represented by the formula (1), where Rrepresents an aryl group and the like having 6 to 16 carbon atoms which may have a substituent, Rrepresents a hydrogen atom and the like, Rand Rrepresent an alkyl group and the like, Rto Rrepresent a hydrogen atom, a halogen atom and the like, X and Y represent a sulfur atom or an oxygen atom, Q represents an oxygen atom, a sulfur atom and the like, Rrepresents an alkyl group and the like having 1 to 6 carbon atom, and a pest control agent containing the compound.【課題】有害生物に対して優れた防除効力を有する化合物、及び該化合物を含有する有害生物防除剤の提供。【解決手段】式（１）式（１）［式中、Ｒ1は、置換基を有していてもよい炭素数６～１６のアリール基等、Ｒ2は、水素原子等、Ｒ4およびＲ5は、アルキル基等、Ｒ6～Ｒ9は、水素原子、ハロゲン原子等、ＸおよびＹは、硫黄原子または酸素原子、Ｑは酸素原子または硫黄原子等、Ｒ10は炭素数１～６のアルキル基等を表す。］で示されるテトラゾリノン化合物、及び該化合物を含有する有害生物防除剤。【選択図】なし
