中国水稻科学2009，Vol.23Issue(5)：537-545,9.DOI:10.3969/j.issn.1001-7216.2009.05.14
近年来广西南宁稻纵卷叶螟大发生原因分析
Analysis on the Causes of Recent Outbreaks of Cnaphalocrocis medinalis in Nanning, China
摘要
Abstract
The population feature and source areas of the rice leaffolder, Cnaphalocrocis medinalis (Guenée) on early-season rice in Nanning, Guangxi Zhuang Autonomous Region, China were studied through systematic field survey, dissection of female ovarian, trajectory analysis, synoptic analysis and historical data analysis. The results indicated that the possible source areas of the major immigrant populations of C. medinalis in Nanning, China in 2007 were the northern parts of Vietnam, and the northern and central parts of the Laos and Thailand. The amount and date of the spring immigration in April-May and autumn return migration and their relationships with rainfall and rainy days between 1970-1980 and the recent years after 2000 were compared. It was found that the enormous increase of the spring immigrants of C. medinalis and earlier appearance of the autumn return immigration were the main causes for the consecutive outbreaks and serious damages after 2003. There were no relationships between the spring immigration and the autumn return migration, neither on its amount nor the date.关键词
稻纵卷叶螟/卵巢解剖/种群性质/迁飞轨迹Key words
Cnaphalocrocis medinalis/ovarian dissection/population status/migratory trajectory分类
生物科学引用本文复制引用
王凤英,胡高,陈晓,沈慧梅,罗善煜,辛德育,徐盛刚,张孝羲,翟保平..近年来广西南宁稻纵卷叶螟大发生原因分析[J].中国水稻科学,2009,23(5):537-545,9.基金项目
国家科技支撑计划资助项目(2006BAD08A01) （2006BAD08A01）
国家水稻产业技术体系资助项目(nyctx-001). （nyctx-001）
