迁入种群和气候因子对稻纵卷叶螟田间种群动态的影响  

THE EFFECTS OF IMMIGRATED POPULATION AND CLIMATIC FACTORS ON FIELD POPULATION DYNAMICS OF RICE CASEWORM

作　　者：费惠新 苏庆龄 张孝羲[1] 

机构地区：[1]南京农业大学植物保护系,南京210095

出　　处：《植物保护学报》1995年第3期193-197,共5页Journal of Plant Protection

摘　　要：历史资料分析表明,地处淮河流域的安徽凤阳县稻纵卷叶螟迁入种群对田间种群数量变动有重要作用,其中以迁入主峰期蛾量和格局特征为最重要因子。研究揭示,迁入种群特征对田间种群增长的影响受到特殊气候条件的影响,得出了气候因子指标,结合迁入种群特征指标,可以对异常发生年份作出较准确的预报。提高预报准确性和预报精度稳定性的途径是必须考虑迁入种群与环境因子的综合影响。The analyses of historical data indicated that the situation of immigrated population is a key factor associated with the field population dynamics of rice caseworm Cnaphalocrocis medinalis Guenee in Fengyang County, Anhui Province. The immigrated moth number and time pattern of immigration in main peak stage are the most important factors. While the effects of the two factors will be interfered by some unusual climatic factors. Consequently, to enhance the accuracy and stability of prediction for population dynamics of rice caseworm in this area, it is necessary to consider the synthetic effect of immigrated population and enviromental factors.

关 键 词：稻纵卷叶暝 迁入种群 预测 气候因子 

分 类 号：S435.112.1[农业科学—农业昆虫与害虫防治] S431.11[农业科学—植物保护]