This invention provides a method for preventing disease and/or controlling animal pests in transplanted rice having long residual effect in rice paddies, wherein the amount of at least one agrochemical is extremely reduced compared with that of the conventional nursery-box treatment. A method for preventing disease in transplanted rice in rice paddies, characterized in that the composition comprising isotianil is adhered to rice seeds before they are sowed in nursery boxes.本發明係提供移栽稻米在稻田中具有長期殘效之預防疾病及/或防治動物蟲害的方法，其中相較於習用的育苗箱處理，其至少一種農藥之量係極度降低。一種預防稻田中移栽稻米疾病之方法，其特徵在於包含亞汰尼(isotianil)之組成物係在稻種播種至育苗箱之前附著在其上。
