PROBLEM TO BE SOLVED: To provide a novel method for controlling potato common scab disease.SOLUTION: The present invention relates to a material for controlling potato common scab disease comprising sugar manufacture by-product, as well as a method for controlling common scab disease using said control material and a production method etc. for potato with increased tolerance to common scab disease.SELECTED DRAWING: NoneCOPYRIGHT: (C)2019,JPO&INPIT【課題】本発明は、ジャガイモそうか病の新規な防除方法を提供することを課題とする。【解決手段】本発明は、製糖副産品を含むジャガイモそうか病防除資材、並びに該防除資材を用いるそうか病の防除方法、及びそうか病に対する耐性が増加したジャガイモの生産方法等に関する。【選択図】なし