PURPOSE: A dust-granule formulation for preventing soil-borne diseases is provided to reduce drift(fly) and to suppress effect insufficiency by drug ununiformity. CONSTITUTION: A dust-granule formulation for preventing soil-borne diseases contains an active ingredient for preventing soil-borne diseases, mineral carriers, and polyoxyalkylene resin ester. The polyoxyalkylene resin ester is polyoxyethylene resin ester or polyoxyethylene polyoxypropylene resin ester. The soil-borne diseases are clubroot or phytophthora blight. The active ingredient is 2',4-dichloro-alpha,alpha,alpha-trifluoro-4'-nitro-m-toluenesulfonaylide, 3-chloro-N-(3-chloro-5-trifluoromethyl-2-pyridyl)-alpha,alpha,alpha-trifluoro-2,6-dinitro-p-toluidine or 3-(3-bromo-6-fluoro-2-methylindole-1-ylsulfonyl)-N, N-dimethyl-1, 2, 4-triazole-1-sulfonamide. The dust-granule formulation additionally contains surfactant.
