Behavioral Mechanism for the Starved Encarsia sophia (Girault and Dodd) (Hymenoptera: Aphelinidae) Parasitizing and Feeding on more Whitefly Nymphs
文献类型： 外文期刊
作者： Liu, Lin-Zhou 1 ; Lv, Bing 1 ; Zang, Lian-Sheng 1 ; Ruan, Chang-Chun 1 ; Zhang, Fan 2 ; Gao, Yue-Bo 3 ;
作者机构： 1.Jilin Agr Univ, Engn Res Ctr Nat Enemy Insects, Inst Biol Control, Changchun 130118, Peoples R China
2.Beijing Acad Agr & Forestry Sci, Inst Plant & Environm Protect, Beijing 100089, Peoples R China
3.Jilin Acad Agr Sci, Inst Plant Protect, Gongzhuling 136100, Peoples R China
关键词： Encarsia sophia;Host feeding;Food deprivation;Biological control
期刊名称：INTERNATIONAL JOURNAL OF AGRICULTURE AND BIOLOGY （ 2019影响因子：0.822； 五年影响因子：0.906 ）
ISSN： 1560-8530
年卷期： 2015 年 17 卷 2 期
收录情况： SCI
摘要： Some host-feeding whitefly parasitoids by starving for a certain period of time before release may kill more hosts. Here, we compared the host-feeding and parasitic behaviors on third-instar nymphs of Bemisia tabaci (Gennadius) between starved and un-starved (newly-emerged) Encarsia sophia (Girault and Dodd). The results showed that the time from release to finding the first host used for host feeding and parasitism by un-starved females was 5.7 and 2.8 times longer than by starved females, respectively. The un-starved females had a significantly longer handling time (1151.9 s) to kill one host through parasitism than starved females (271.9 s). The results suggest that starved parasitoids are more effective biological control agents: they locate and kill their hosts more quickly than do un-starved parasitoids, and kill more hosts using the saved time. (C) 2015 Friends Science Publishers
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