稻纵卷叶螟 Cnaphalocrocis medinalis Guenee原为我国水稻上一种间歇性、局部性发生的害虫,随着耕作改制、品种更新、密植高肥等生产水平的提高,为害程度从1965年开始在全国范围内明显上升,已成为水稻上一种常发性的重要害虫。分布东自台湾,西迄西藏,南起海南岛,北到黑龙江,遍及二十八个省、市自治区,主要为害区在泰沂山区到秦岭一线以南各省稻区,及华北、东北渤海湾沿岸地区。国外分布主要在亚洲高温多雨的热带、亚热带及夏季高温多雨的温带地区,以南亚、东南亚各国及日本、朝鲜等地为主,其他 Cnaphalocrocis medinalis Guenee was a pest that occurred intermittently and locally in rice in our country. With the improvement of farming system, breed renewal and dense planting and high fertilizer production, the degree of damage was from 1965 onwards in the whole country Within the obvious increase, it has become a perennial important pest on rice. Distribution from the east of Taiwan, west of Tibet, south from Hainan Island, north of Heilongjiang Province, covering 28 provinces and municipalities autonomous regions, the main affected areas in the Taiyi mountain area to the Qinling Mountains south of the provinces and rice provinces, and North China, Northeast China Sea Coastal area. Foreign distribution mainly in Asia, hot and humid tropical, subtropical and summer hot and humid temperate regions, to South Asia, Southeast Asian countries and Japan, North Korea and other places based, other