Journal of Integrative Agriculture ›› 2022, Vol. 21 ›› Issue (6): 1722-1730.DOI: 10.1016/S2095-3119(21)63727-9

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JIA-2021-0058高温没有降低潜叶蝇寄主致死型寄生蜂-芙新姬小蜂(膜翅目: 姬小蜂科)的控害潜力

  

  • 收稿日期:2021-01-15 接受日期:2021-04-29 出版日期:2022-06-01 发布日期:2021-04-29

High temperatures do not decrease biocontrol potential for the host-killing parasitoid Neochrysocharis formosa (Hymenoptera: Eulophidae) on agromyzid leafminers

XUAN Jing-li1, 3, XIAO Yue1, 2, YE Fu-yu1, ZHANG Yi-bo1, TAO Shu-xia2, GUO Jian-yang1, LIU Wan-xue1   

  1. 1 State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, P.R.China
    2 College of Agronomy, Jilin Agricultural University, Changchun 130118, P.R.China
    3 Department of Entomology and Plant Pathology, North Carolina State University, Raleigh 27607, USA
  • Received:2021-01-15 Accepted:2021-04-29 Online:2022-06-01 Published:2021-04-29
  • About author:XUAN Jing-li, E-mail: jxuan@ncsu.edu; Correspondence GUO Jian-yang, Tel: +86-10-82105927, E-mail: guojianyang@caas.cn; LIU Wan-xue, Tel: +86-10-82105927, E-mail: liuwanxue@caas.cn
  • Supported by:
    This work was supported by the National Natural Science Foundation of China (31772236), the Science and Technology Innovation Program of Chinese Academy of Agricultural Sciences (caascx-2017–2022-IAS), and the Program of China Scholarship Council (201807990002).  

摘要:

在寄主-寄生蜂体系中,温度作为一个重要的非生物因子可能影响到寄生蜂生物防治的效力。在本研究中,我们以幼虫内寄生蜂-芙新姬小蜂为研究对象,在室内研究四种温度下(26, 29, 32, 和 35°C)其寄生蜂对蔬菜潜叶蝇-美洲斑潜蝇的控害潜力,且用芸豆室内饲养美洲斑潜蝇种群。研究结果表明:与最佳温度26°C相比,高温(29, 32 和 35°C)虽然降低了雌蜂的寿命,但是由于雌蜂在高温下增加了日均致死数,导致高温没有显著影响该雌蜂的总寄主致死数。此外,该雌蜂的生活史参数(寿命,寄生数,直接致死数及非繁殖型寄主致死数)均与温度和寄主取食数呈线性关系。该研究结果有助于更好的理解寄生蜂芙新姬小蜂在高温季节/环境下对蔬菜潜叶蝇的防控。

Abstract: Temperature, as a critical abiotic factor, might influence the effectiveness of biological control by parasitoids in host-parasitoid systems. In this study, Neochrysocharis formosa (Westwood), a larval endoparasitoid, is used to investigate the efficacy of biological control on a vegetable agriculture pest, Liriomyza sativae Blanchard, reared on kidney bean (Phaseolus vulgaris L.), at four constant temperatures (26, 29, 32, and 35°C) under laboratory conditions. Our results show that high temperatures (29, 32, and 35°C) do not significantly affect lifetime host-killing events of female adults by increased daily host-killing events compared to temperature 26°C, although their lifespans decrease with an increase in temperatures. Each life-history trait of female adults (lifespan, parasitism, stinging, or nonreproductive host-killing events) present a linear relation with temperatures and host-feeding events, respectively. Our findings contribute to a better understanding of biocontrol efficacy of parasitoid N. formosa against agromyzid leafminers at high-temperature seasons or environments.

Key words: leaf-mining fly ,  host-feeding parasitoid ,  heat stress ,  biological control