褐稻虱是一种分布广、为害严重的水稻害虫之一。据目前所知,亚洲的南部、东南部、中部以至东北部地区各国均有分布为害,澳大利亚的北部,所罗门群岛等地也有发生。此虫的严重为害会造成水稻完全枯萎或死亡,引起稻株倒伏而致严重减产,中度的为害亦可造成水稻生育不良而降低产量。 Brown planthopper is a widely distributed, serious damage to one of the rice pests. As far as is known to all, countries in southern, southeastern, central and northeastern Asia have been harmed and distributed. Northern Australia, the Solomon Islands and other places have also occurred. The serious damage caused by this pest will cause complete wilt or death of rice, which will cause serious yield loss due to the lodging of rice plants. Moderate damage can also cause poor growth of rice and reduce the yield.