Sulfones of Bis(4-chlorophenyl) or 2,4'-dichlorodiphenylmethyl and alkyls with one to four carbon atoms, e.g., bis(4-chlorophenyl)methyl methyl sulfone, which control the harmful effects of Piricularia fungus, particularly Piricularia oryzae, upon plants are disclosed. Also disclosed are the methods of controlling the harmful effects of these fungi with these sulfones, as well as other fungi, such as Uromyces and Venturia genera with bis(4-chlorophenyl)methyl methyl sulfone.
二(4-
氯苯基)或2,4'-二
氯二苯甲基磺酮和具有一至四个碳原子的烷基,例如二(4-
氯苯基)甲基甲基磺酮,用于控制对植物有害的稻瘟病真菌,特别是对稻瘟病或
水稻稻瘟病的有害影响。还公开了使用这些磺酮控制这些真菌有害效果的方法,以及使用二(4-
氯苯基)甲基甲基磺酮控制其他真菌,如锈病菌和褐斑病菌属。