在诸多的水稻病虫害中,褐飞虱是我国及东南亚地区水稻上重要的害虫之一。褐飞虱体形微小,在水稻种植后暴发,其对水稻的危害主要表现为以成、若虫群集于稻丛基部,刺吸茎叶组织汁液从而引起稻株瘫痪倒伏,导致严重减产或绝收。褐飞虱不仅是传播某些水稻病毒病的虫媒,也有利于水稻纹枯病、小球菌核病的侵染为害。虽然国内外学者对 Among many pests and diseases of rice, BPH is one of the most important pests on rice in China and Southeast Asia. Nilaparvata lugens, small in shape and outbreak after rice planting, are harmful to rice mainly due to clustering of nymphs at the base of rice and pricking the stems and leaves of the rice plant to cause paralyzed lodging of rice plants, resulting in serious yield reduction or yield failure. Nilaparvata lugens not only transmits some insect vectors of rice virus disease, but also is conducive to rice sheath blight, sclerotinia infection. Although scholars at home and abroad