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前言本文对安庆近郊的红星公社历年棉叶蝉观测资料和气象资料进行分析,找出与棉叶蝉发生关系较密切的几个气象因子,经过相关系数检验和回归分析,点绘物候图,初步总结了棉叶蝉发生期,发生量和危害趋势的预测方法。一、棉叶蝉的危害棉叶蝉(Empoasca biguttula Sniraki)又名棉叶跳虫,棉浮尘子,蜢虫,小知了等,属同翅目,叶蝉科。77年以前只作兼治对象,自77年以后大发生频次明显增加,由潜在性害虫上升为沿江棉区铃期的主要害虫。由于棉叶蝉世代周期短,群体增长快,
Preface This paper analyzes the past years cotton leaf cicada observations and meteorological data of Hongxing commune in the suburbs of Anqing to find out several meteorological factors that are closely related to cotton leafhopper. After correlation coefficient test and regression analysis, The prediction methods of cotton leafhopper occurrence, occurrence and hazard trend were summarized. First, the harm of cotton leafhopper Cotton leafhopper (Empoasca biguttula Sniraki), also known as cotton leaf hopper, cotton floating dust, pest insects, small know, and so on, belong to Homoptera, Cicadellidae. 77 years ago, only as a cure for the object, since 1979, the frequency of major accidents increased significantly from potential pests to the main pests in the cotton belt along the Yangtze River. As cotton leaf cicada generations of short cycle, the rapid growth of groups,