Journal of Integrative Agriculture ›› 2016, Vol. 15 ›› Issue (12): 2803-2808.DOI: 10.1016/S2095-3119(16)61478-8

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  • 收稿日期:2016-07-28 出版日期:2016-12-01 发布日期:2016-12-02

Field resistance to spinosad in western flower thrips Frankliniella occidentalis (Thysanoptera: Thripidae)

LI Dong-gang1, 2, SHANG Xiao-yong2, Stuart Reitz3, Ralf Nauen4, LEI Zhong-ren1, Si Hyeock Lee5, GAO Yu-lin1   

  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 Institute of Plant Protection, Dezhou Academy of Agricultural Sciences, Shandong 253000, P.R.China
    3 Malheur County Extension, Oregon State University, OR 97914, USA
    4 Bayer CropScience, RD-SMR, Pest Control Biology, Monheim 40789, Germany
    5 Department of Agricultural Biotechnology, Seoul National University, Seoul 151-742, Republic of Korea
  • Received:2016-07-28 Online:2016-12-01 Published:2016-12-02
  • Contact: GAO Yu-lin, Tel: +86-10-62815930, Fax: +86-10-62815931, E-mail: gaoyulin @caas.cn
  • About author:LI Dong-gang, Tel: +86-10-62815930, Fax: +86-10-62815931, E-mail: dznkybgs@126.com;
  • Supported by:

    This study is financially supported by the National Natural Science Foundation of China (31371942) and the National Key Research and Development Program, China (2016YFC1200600), the Ministry of Science and Technology, China.

Abstract:     The western flower thrips, Frankliniella occidentalis, is one of the most destructive sucking pests of vegetables, fruits and ornamental crops in China. Spinosad is one of the most commonly used insecticides to manage thrips. To assess the incidence of spinosad resistance in F. occidentalis field populations in eastern China, survival rates for 24 different populations were compared with those of a susceptible laboratory strain. All populations showed significantly higher resistance to spinosad compared with the control as determined by comparing median lethal concentrations. Two populations from Shouguang and Liaocheng in Shandong Province were classified as having moderate and high levels of resistance to spinosad with a mean resistance ratio of 17.0 and 89.2, respectively. Our research indicates a widespread reduction in spinosad efficacy for controlling F. occidentalis field populations, and that resistance management strategies should be implemented as soon as practicable, to reduce the potential of progressive resistance development and loss of efficacy.

Key words: insecticide resistance ,  spinosad ,  bioassay ,  Frankliniella occidentalis