稻纵卷叶螟(Cnapha locrocis medi-nalis)分布于南亚、东南亚,近年来,其重要性有明显的提高。通常,在高氮的田块及靠近树林旁边的稻田虫口最高。幼虫吐丝卷叶并在卷叶中取食,破坏叶绿层。在严重危害的稻田,稻苗枯褐和呈虱烧状塌圈。在稻苗孕穗期发生常造成损失。国际水稻研究所已经提出试虫饲养、抗虫材料筛选和抗性机制测定的方法。在国际水稻所的筛选中和国家的育种计划中,已经选育出一批抗虫品种。卷叶螟的饲养在温室和养虫棚饲养卷叶螟,大部分过 Cnapha locrocis medi-nalis is distributed in South Asia and Southeast Asia. In recent years, its importance has been significantly improved. In general, fields with high amounts of nitrogen and rice near the woods have the highest insect population. Larvae curl leaves and eat in the leaf roll, destroy leaf green layer. In the severely endangered rice fields, rice seedlings withered and lice blight collapse ring. In the seedling booting stage often result in loss. The International Rice Research Institute has put forward methods for feeding insects, selecting anti-insect materials and measuring the resistance mechanism. In the screening of the International Rice Institute and in the national breeding program, a number of insect-resistant varieties have been bred. Culm sheath feeding in the greenhouse and reared shed leaf roller, most of them too