杂交稻制种田病虫的发生特点是稻蝗虫、稻蓟马、稻飞虱和粒黑粉病、纹枯病比常规稻生产田严重 ;而稻纵卷叶螟与白叶枯病常年发生不一 ;稻叶蝉、中华稻蝗、鞘腐病有时在某些地方发生也很普遍。制种田的病、虫之所以发生较重 ,是由制种田的栽培特点所决定的。 1、父本栽插早 ,容 Rice pests, rice thrips, planthoppers and powdery mildew are the most common pests in hybrid rice. The incidence of sheath blight is more serious than that of conventional rice. However, the occurrence of rice leaf roller and bacterial leaf blight is not always the same One; rice leafhoppers, Chinese locusts, sheath rot sometimes occurs in some places is also very common. Diseases of farming, the occurrence of pests heavier, is determined by the farming system of farming characteristics of the decision. 1, male parent planted early, capacity