玉米三点斑叶蝉在玉米田的空间分布型  

The spatial distribution of Zygina salina Mit in corn field

作　　者：屈荷丽[1] 杜娟[1] 雷勇辉[1] 赵冰梅[2] 张建萍[1] 李亦松[1] 王少山[1] 

机构地区：[1]石河子大学农学院植保系,石河子832003 [2]新疆生产建设兵团农业技术推广总站,乌鲁木齐830011

出　　处：《植物保护》2016年第6期149-153,共5页Plant Protection

基　　金：2011年兵团农业病虫害防治专项(2130108);国家"863"计划(2011AA100508)

摘　　要：本文应用聚集度指标检验法,以及Iwao的回归模型分析法、Taylor幂法则,对玉米三点斑叶蝉成虫、若虫的空间分布型进行了测定分析,结果表明:成虫、若虫空间分布型均为聚集分布,基本成分为个体群,个体间相互吸引,聚集程度随着密度增大而增高。成虫的聚集是由环境条件所引起;若虫单株密度低于5.08头时聚集是由环境条件引起,单株密度高于5.08头聚集是由昆虫行为和环境共同作用引起的。建立了玉米三点斑叶蝉成虫、若虫田间调查理论抽样数模型。调查期间,玉米三点斑叶蝉成、若虫在玉米植株下部数量多于中部,中部数量又多于上部。The spatial distribution patterns of Zygina salina Mit adults and nymphs were investigated by aggregated indices,Taylor＇s power law and Iwao regression analysis.The results indicated that the nymphs and adults of Z.salina presented pattern of aggregation distribution,and fundamental component was the individual that attracted each other.Aggregation degree increased with density of Z.salina adults and nymphs.The reason for the aggregation of adults may be due to the environmental factors.When the nymphs density was lower than5.08 individuals per plant,aggregation was caused by environmental conditions,and if higher than 5.08 individuals per plant,the aggregation was caused by the combined actions of the leafhopper behavior and environment factors.The model of theoretical sampling number was established for the adults and the nymphs of Z.salina.During the investigations,the number of the adults and the nymphs of Z.salinain lower part of plants were more than those in the middle part,while least in the upper part.

关 键 词：玉米三点斑叶蝉 空间分布型 聚集度指标 

分 类 号：S435.132[农业科学—农业昆虫与害虫防治]