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褐飞虱Niloparvatalugens（stal）广泛分布于南亚、东亚、澳大利亚北部等水稻种植区，是Nilaparva－ta属15种飞虱中唯一以亚洲栽培稻为主要寄主，并引起严重为害和经济损失的种类。从1996年起，国际水稻所开始筛选、选育抗褐飞虱品种，并成功选育出IR26抗褐飞虱品种，在生产上
Niloparvatalugens (Stal) is widely distributed in rice growing areas such as South Asia, East Asia and northern Australia. It is the only plant species in Nilaparva-ta that is dominated by Asian cultivated rice and possesses serious damage and economic losses. Since 1996, the International Rice Institute has started screening and breeding of resistance to BPH varieties and successfully breeding varieties of IR26 against BPH,