四种主要大豆食叶害虫种群空间分布型及其应用研究  

A STUDY ON THE SPACIAL DISTRIBUTION AND SAMPLING METHOD OF FOUR SPECIES OF SOYBEAN LEAF EATING WORMS

作　　者：曲耀训 高孝华 马振泉 邹向英 牟少敏[2] 牟吉元[2] 

机构地区：[1]山东省滨州地区农科所,山东滨州256615 [2]山东农业大学,山东泰安271018

出　　处：《华东昆虫学报》1993年第1期65-70,共6页Entomological Journal of East China

摘　　要：通过分层随机与连片调查获得114个样本.利用微机分别对豆天蛾卵和豆天蛾、银纹夜蛾、棉铃虫、豆灰蝶及混合种群的幼虫,进行了4种频次分布型检验和6项聚集度指标的测定.结果表明,上述害虫在豆田内均属聚集分布.文中分析了聚集原因.提出了“Z”字型10样点,每样点以1/3m 双行为单位的抽样方法.确立了在两种允许误差下的抽样数量.进行了序贯抽样分析.Through the successive sampling and the stratified random sampling in soybean fields,114 dis- tribution samples of larvae of Plusia agnata Staudinger,Clanis bilineata(Walker),Heliothis armigera H(?)bner, Plebejus argus Linnaeus,and egg of Clanis bilineata(Walker)are obtained.Their spatial distributions are de- termined with both four frequency comparision methods and six indices of aggregation,the relation of  and k.The results indicate that their spacial distributions mostly belong to the contagious distribution,nega- tive binomial distribution and aggregative distribution.The reason of their aggregative distribution is dis- cussed.Based on their spatial distributions,a suitable sampling method,ten points in “Z” form and 1/3 m of two rows in every point,has been proposed.The most moderate sampling number in two errors and the sequential sampling analysis are carried out according to control indexes of four soybean pests.

关 键 词：空间分布型 食叶害虫 豆天蛾 混合种 银纹夜蛾 种群 大豆 聚集度指标 棉铃虫 幼虫 

分 类 号：Q948.12[生物学—植物学] S763[农业科学—森林保护学]