草地螟曲阿格姬蜂的寄生功能反应  

Functional Response of Agrypon flexorius (Thunberg) to Loxostege sticticalis (Linnaeus)

作　　者：王建梅[1] 刘爱萍[1] 高书晶[1] 徐林波[1] 崔智林 

机构地区：[1]中国农业科学院草原研究所,呼和浩特010010 [2]乌兰察布四子王旗草原监理所,乌兰花011800

出　　处：《中国生物防治学报》2013年第3期338-343,共6页Chinese Journal of Biological Control

基　　金：农业部"948"项目(2011-G4);公益性行业(农业)科研专项(201103002);"十二五"国家科技支撑计划(2012BAD13B07)

摘　　要：室内条件下(23℃,RH 60%～80%,光周期14L:10D),测定了曲阿格姬蜂Agrypon flexorius(Thunberg)对草地螟幼虫Loxostege sticticalis(Linnaeus)的寄生功能反应和寻找效应。结果表明,曲阿格姬蜂寄生量随草地螟幼虫数量的增加而增加,当草地螟幼虫数量增加一定水平时,寄生量趋向稳定,其曲线符合Holling圆盘方程II型。曲阿格姬蜂最大寄生量和最佳寻找密度分别为14.41头和9.15头。曲阿格姬蜂的寻找效应随着草地螟密度的增加而降低,也随自身密度的增加而降低。经χ2检验,其理论值与观察值差异不显著。以上模型为正确评价曲阿格姬蜂控制草地螟的作用提供了科学依据。Functional response and searching efficiency of Agrypon flexorius Thunberg, a larval parasitoid of Loxostege sticticalis Linnaeus, were determined in the laboratory. The results showed that the functional response fitted with Holling type II; parasitism increased with the increase of L. sticticalis density, but the searching efficiency decreased with the increase ofA. flexorius and L. sticticalis density. The daily maximum numbers of parasitism and the optimal searching efficiency was 14.41 and 9.15, respectively. There are no significant difference between theoretical values and the observed value by Z2 test. The models provided scientific basis for the control ofA. flexorius to L. sticticalis.

关 键 词：曲阿格姬蜂 草地螟 功能反应 

分 类 号：S476.3[农业科学—农业昆虫与害虫防治]