稻纵卷叶螟是水稻重要害虫之一。大量的研究结果表明,其成虫具有远距离南北迁飞特性。吉安地区历年于4/中～5/上由南方稻区迁飞波及,成为第一代有效虫源,并转化为二代虫源(称本地繁殖型),发生轻。5/下～6/上、中、南方虫源大量迁入本区,构成第二代主要虫源,并常与本地繁殖型重叠,早稻后期受害严重。此为赣中稻区最重要的一个发生世代。为了揭示稻纵卷叶 Rice leaf roller is one of the important rice pests. A large number of research results show that its adults have long-range north-south migration characteristics. Over the past 4 years, Ji’an area has been affected by the relocation of rice from the southern part of the Yangtze River, becoming the first generation of effective insect source and transforming it into a second generation insect source (called local reproduction type). 5 / ~ 6 / upper, middle and south of the large number of migratory insects into the area, constitute the second generation of the main source of insects, and often overlap with the local reproduction of early rice suffered serious late. This is the most important generation in the middle of Jiangxi province. In order to reveal the rice curly leaves