烟蚜与其捕食性瓢虫在数量及空间格局间的关系研究  

Relationship of Population Distribution between Myzus persicae and Predatory Ladybugs

作　　者：陈斌[1] 李正跃[1] 孙跃先[1] 严乃胜[1] 许若清[1] 

机构地区：[1]云南农业大学植物保护学院,云南昆明650201

出　　处：《云南农业大学学报》2002年第1期16-20,共5页Journal of Yunnan Agricultural University

基　　金：云南省科委资助项目 (97C0 2 6M)

摘　　要：昆明地区烟田捕食烟蚜的瓢虫主要有异色瓢虫、七星瓢虫和六斑瓢虫 3种 ,其中异色瓢虫占 5 0 3% ,七星瓢虫占 35 6 % ,六斑瓢虫占 14 1% .烟田烟蚜与瓢虫种群数量消长规律一致 ,烟蚜与瓢虫数量成明显的正相关 (R =0 88 ) ;烟株上、中、下 3段及上、中株段烟蚜与瓢虫数量成正相关 (R上 =0 6 36 ,R中 =0 5 96 ,R下 =- 0 13) ;用Lloyd的平均拥挤度m 和平均聚块性指标 (m /m)、Iwao的m -m回归分析法分析了烟田及烟株上、中、下 3段不同株段烟蚜和瓢虫种群空间分布格局 ,得到烟蚜与瓢虫在烟田和烟株上、中株段呈聚集分布 ,证明了瓢虫对烟蚜有明显的追随作用 ,即烟蚜成聚集分布时 3种瓢虫也成聚集分布 ,借以提高对烟蚜的控制作用。The research result shows that there are three predatory Coccinidae species of the Myzus persicae in the tobacco field.The spatial distribution of Coccoinidae belonged to aggregate type and it is consistent with that of Myzus persicae Sulzer. The summit of the population of Coccinidae lag 5 days with that of the Myzus persicae .Vertical distribution of Myzus persicae was extremely correlative with each other in aggregate place,indicating that Coccoinidae has the ability to following Myzus persicae in different tobacco leaves.

关 键 词：空间格局 烟蚜 捕食性瓢虫 时空动态 烟草害虫 

分 类 号：S435.72[农业科学—农业昆虫与害虫防治]