蟹田稻由于播种、移栽期、栽培方式、水肥管理、生态环境等与常规稻相差较大,病虫发生以条纹叶枯病、三化螟较重,其他病虫均轻于常规稻。根据2a试验,提出了秧田期狠压病虫基数,中、后期主攻纹枯病、三化螟和稻飞虱的策略,并提出相应的施药时间和方法。 Crab rice paddy due to sowing, transplanting, cultivation methods, water and fertilizer management, ecological environment and conventional rice difference is larger, pest and stripe blight, heavier borer, other pests were lighter than conventional rice. According to the experiment of 2a, the strategy of relenting pest and disease base, middle and late stage sheath blight, stem borer and planthopper in seedling stage was put forward and the corresponding application time and method were put forward.