梨木虱和天敌草蛉的空间分布特征  

Spatial Distribution Pattern of Pear Psylla and Its Natural Enemy Lacewing Fly

作　　者：赵龙龙[1] 周旭凌[1] 张未仲[1] 李庆亮[1] 胡增丽[1] 郭黄萍[1] ZHAO Longlong;ZHOU Xuling;ZHANG Weizhong;LI Qingliang;HU Zengli;GUO Huangping(Institute of Pomology, Shanxi Academy of Agricultural Sciences, Taigu, Shanxi 030815)

机构地区：[1]山西省农业科学院果树研究所,山西太谷030815

出　　处：《北方园艺》2018年第11期55-60,共6页Northern Horticulture

基　　金：山西省农业科学院博士研究基金资助项目(YBSJJ1608);山西省农业科学院院重点资助项目(YZD1504);山西省重点研发计划重点资助项目(201703D221011-4)

摘　　要：为指导防治梨园害虫梨木虱和保护利用天敌草蛉类群,对二者在梨树上和梨园中的空间分布格局进行了调查,比较了梨木虱、草蛉在梨树上的分布特点并进行了相关分析,另通过6种空间分布聚集度指标,研究了梨园中梨木虱和草蛉的空间分布特征,以期为综合防控梨木虱提供参考依据。结果表明:梨木虱主要集中在梨树树冠的下部位置,在梨树的4个方位上,其发生数量无明显差异;梨木虱的发生数量与叶片数量呈明显正相关;梨木虱在梨园中呈聚集分布模式,由自身聚集习性引起。天敌草蛉主要集中在梨树下部位置,以梨树东南方向分布较多,但只在梨树的上部位置,草蛉和梨木虱具有明显的相关性,草蛉在梨园中呈多种分布模式,主要呈聚集分布。In order to control the main pest Psylla chinensis and use the natural enemy in pear orchard,the spatial distribution of pear psylla and its main predator′s lacewing fly in pear tree and orchard were explored.In the purpose of providing reference basis for prevention and control of pear psylla,the spatial distribution characteristics of pear psylla and lacewing fly in pear orchard were studied by comparing the distribution characteristics on pear trees and 6 spatial distributions.The results showed that the pear psylla mainly distributed in the lower crown of pear tree,no significant differences were found in the four directions,the pear psylla number was significantly correlated with the density of the pear leaves,pear psylla population were aggregated distribution in pear orchard,and aggregation was depended on the aggregation nature of the insect.The lacewing fly mainly distributed in the lower crown and southeastward of pear tree,significant correlation with the pear psylla only was found in the upper crown,lacewing fly mainly exhibited aggregated distribution in pear orchard.

关 键 词：梨木虱 草蛉 空间分布 生物防治 

分 类 号：S436[农业科学—农业昆虫与害虫防治]