Journal of Integrative Agriculture ›› 2017, Vol. 16 ›› Issue (11): 2534-2546.DOI: 10.1016/S2095-3119(17)61665-4

• 论文 • 上一篇    下一篇

  

  • 收稿日期:2017-02-13 出版日期:2017-11-20 发布日期:2017-11-03

Effects of sesame nectar on longevity and fecundity of seven Lepidoptera and survival of four parasitoid species commonly found in agricultural ecosystems

LIU Kai1, 2*, ZHU Ping-yang3, 4*, LÜ Zhong-xian1, CHEN Gui-hua3, ZHANG Jing-ming1, LÜ Yao-bing1, LU Yan-hui1   

  1. 1 State Key Laboratory Breeding Base for Zhejiang Sustainable Pest and Disease Control, Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, P.R.China
    2 State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, P.R.China
    3 Jinhua Plant Protection Station, Jinhua 321017, P.R.China
    4 School of Agricultural and Wine Sciences, Charles Sturt University, New South Wales 2800, Australia
  • Received:2017-02-13 Online:2017-11-20 Published:2017-11-03
  • Contact: Correspondence Lü Zhong-xian, Tel: +86-571-86404077, Fax: +86-571-86404225, E-mail: luzxmh@163.com
  • About author:LIU Kai, E-mail: liukai5088@126.com. * These authors contributed equally to this study.
  • Supported by:

    This work was funded by the Zhejiang Key Research and Development Program, China (2015C02014) and the earmarked fund for China Agriculture Research System (CARS-01-17).

null

Abstract: Ecological engineering involves the use of plants to promote establishment, survival and efficiency of natural enemies in agricultural systems.  Some plant species may be hosts or provide resources to some pest species.  We assessed the risks and benefits of sesame (Sesamum indicum L.), as a nectar source for seven economically important Lepidopteran pest and four parasitoid species in a range of vegetable crop systems.  Our results showed that the mean longevities of arthropod parasitoids Pteromalus puparum (L.), Encarsia sophia (Girault & Dodd) and male Microplitis tuberculifer (Wesmael) were significantly extended when fed on sesame flowers compared to the water control.  Sesame flowers had no effect on adult longevities and fecundities of six out of the seven Lepidoptera pest species tested except Plutella xyllostella (L.) females laid more eggs when fed on sesame flowers.  It is likely that the increased fecundity is due to accessibility to nectar at the bottom of corolla because of their smaller body sizes.  Our findings provide a first step towards better understanding of the risks and benefits of using sesame to implement ecological engineering for the management of vegetable pests.

Key words: Lepidopteran pests ,  natural enemies ,  flowering plant ,  risks and benefits assessment ,  ecological engineering

中图分类号: