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Performance of Trichogramma pintoi when parasitizing eggs of the oriental fruit moth Grapholita molesta

文献类型： 外文期刊

作者： Guo, Xiaojun 1 ; Di, Ning 1 ; Chen, Xu 1 ; Zhu, Zhengyang 1 ; Zhang, Fan 1 ; Tang, Bin 4 ; Dai, Huijie 5 ; Li, Jintang 5 ; G 1 ;

作者机构： 1.Beijing Acad Agr & Forestry Sci, Inst Plant & Environm Protect, Beijing Key Lab Environm Friendly Management Frui, Beijing 100097, Peoples R China

2.Jilin Agr Univ, Inst Biol Control, Jilin Engn Res Ctr Resource Insects Ind, Changchun 130118, Jilin, Peoples R China

3.Nanjing Agr Univ, Coll Agron, Nanjing 210095, Jiangsu, Peoples R China

4.Hangzhou Normal Univ, Coll Life & Environm Sci, Hangzhou 310036, Zhejiang, Peoples R China

5.Weifang Univ Sci & Technol, Facil Hort Lab Univ Shandong, Weifang 262700, Peoples R China

6.Natl Agrotech Extens & Serv Ctr, Beijing 100125, Peoples R China

关键词： peach orchard; parasitism rate; emergence rate; egg age; biological control

期刊名称：ENTOMOLOGIA GENERALIS （ 影响因子：5.625； 五年影响因子：4.207 ）

ISSN： 0171-8177

年卷期： 2019 年 39 卷 3-4 期

页码：

收录情况： SCI

摘要： In recent years, Grapholita molesta Busck has become a serious pest to fruit trees, especially to peach trees in China. In the present study, the parasitism of the pest by the parasitoid Trichogramma pintoi Voegele was studied, with assessment of the impact of UV-light, host egg age, host and parasitoid density, as well as different inoculation time. The UV-light treatment significantly decreased parasitism rate of the parasitoid compared to non-UV light treatment. T. pintoi preferred to parasitize newly laid G. molesta eggs, and parasitism rate decreased with increasing age of host eggs. Moreover, the parasitism rate on G. molesta increased with Trichogramma density although the rate of parasitism per parasitoid female reduced overall. The parasitism rate also increased when the releasing duration extended to 48 h. The results provided key information for developing the use of T. pintoi as biocontrol agent for management of G. molesta. Further studies will be needed to document potential method for field development of T. pintoi-based biological control of G. molesta in peach orchards.

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