实验室、田间试验表明 ,甲胺磷对稻纵卷叶螟及其寄生蜂、捕食性天敌等均有不同程度的杀伤作用。各代推迟喷药、放宽防治指标可提高纵卷叶螟幼虫被寄生率 ,对产量并无影响。结合前期施药对褐飞虱再增猖獗的促进作用 ,建议在水稻生长前期谨慎用药 ,尤其应限制甚至禁止在稻田使用甲胺磷。 Laboratory and field experiments showed that methamidophos had a different degree of killing effect on rice leaf roller and its parasitic wasps and predators. All generations to postpone spraying, relax control indicators can increase larvae larvae parasitic rate, no impact on the yield. Combining with the promotion of the rampant increase of BPH by prophages, it is advisable to use prudence in the early stage of rice growth. In particular, methamidophos should be restricted or even prohibited in paddy fields.