PROBLEM TO BE SOLVED: To provide a method of controlling sedimentation that occurs over time in oil dispersion formulations of agrochemical products, so as to maintain physical stability of viscosity and the like for a long time.SOLUTION: There is provided a method of preparing an oil dispersion formulation comprising a solvent, at least one of dibenzylidene sorbitol (DBS) represented by the formula in the figure and analogs of DBS, and an agricultural active ingredient, in an agrochemical product.SELECTED DRAWING: NoneCOPYRIGHT: (C)2016,JPO&INPIT【課題】農薬製品の油分散製剤中で継時的に生じる沈降を制御し、長期の粘度等の物理的安定性を維持する方法の提供。【解決手段】農薬製品への溶媒、下記式で表わされるジベンジリデンソルビトール(DBS)又はDBSのアナログの内の1つ以上、及び農業用活性成分を含む油分散製剤の調整方法。【選択図】なし