PROBLEM TO BE SOLVED: To provide a compound having an excellent controlling efficacy against a pest.SOLUTION: There is provided a tetrazolinone compound represented by the formula (1), where Rrepresent a specific group; and X represent an oxygen atom or a sulfur atom. The compound has an excellent controlling efficacy against a pest.【課題】有害生物に対して優れた防除効力を有する化合物の提供。【解決手段】式R1-10は特定の基。Xは酸素原子または硫黄原子。で示されるテトラゾリノン化合物。本化合物は有害生物に対して優れた防除効力を有する。【選択図】なし