PROBLEM TO BE SOLVED: To obtain a coated granular agrochemical enabling the achievement in the saving of agrochemical formulation application works and in the safety security of a worker on application works by coating agrochemical granules containing an ingredient for controlling rice sheath blight disease with a resin. SOLUTION: This coated granular agrochemical is obtained by coating the surfaces of agrochemical granules with a resin such as ethylene-carbon monoxide copolymer. The agrochemical granules preferably have granular diameters of 0.7-5.0 mm and contain an ingredient for controlling rice sheath blight disease, such as α,α,α-trifluoro-3'-isopropoxy-o-toluanilide. The coating method includes a method for spraying the above resin dissolved in an organic solvent on the above granules in a jet stream state. The formulation preferably has a timing release type sustained release function which comprises a release-inhibiting period (preferably 1,000-3,000 day deg.C converted into an accumulated temperature) for inhibiting the release of the control ingredient for a constant period after applied and a release period for keeping the release of the control ingredient, after the release-inhibiting period is finished.
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