Journal of Integrative Agriculture ›› 2021, Vol. 20 ›› Issue (3): 783-791.DOI: 10.1016/S2095-3119(20)63392-5

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  • 收稿日期:2020-06-04 出版日期:2021-03-01 发布日期:2021-02-18

Insecticide resistance monitoring for the invasive populations of fall armyworm, Spodoptera frugiperda in China

ZHANG Dan-dan1, XIAO Yu-tao2, XU Peng-jun3, YANG Xian-ming1, WU Qiu-lin1, WU Kong-ming1 
  

  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 Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518120, P.R.China
    3 Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao 266101, P.R.China
  • Received:2020-06-04 Online:2021-03-01 Published:2021-02-18
  • Contact: Correspondence WU Kong-ming, Tel: +86-10-82105551, E-mail: wukongming@caas.cn
  • About author:ZHANG Dan-dan, Tel: +86-10-62816306, E-mail: wua134152 @163.com;
  • Supported by:
    This work was supported by the National Key Research and Development Program of China (2019YFD0300101) and the Central Public-interest Scientific Institution Basal Research Fund, China (CAAS-ZDRW202007).

摘要:

草地贪夜蛾自2018年12月11日入侵云南后已在我国定殖并形成了周年繁殖区,春夏季将以周年繁殖区为起点向北迁飞。明确其周年发生区域,对指导我国草地贪夜蛾的监测预警及科学防控工作具有重要意义。对冬季草地贪夜蛾在我国热带和亚热带地区的种群动态研究表明,幼虫虫口密度与冬季温度显著正相关,热带地区草地贪夜蛾幼虫种群密度最高,其次为南亚热带地区,而中亚热带北部地区和北亚热带地区未见草地贪夜蛾幼虫发生。研究结果指出草地贪夜蛾在我国1月份等温线10℃以南的热带和南亚热带地区可周年繁殖,该区域包括海南省和台湾省,以及福建、广东、广西、贵州和云南五省的南部区域。该研究明确了草地贪夜蛾的在中国的周年繁殖区域,为该虫区域性监测预警及防控提供了重要依据。


Abstract:

Fall armyworm has invaded China and colonized its populations in tropical and sub-tropical regions of South China since December 2018.  Chemical spray has been widely used to control the pest, which shall lead to resistance evolution.  In this research, we collected five populations of the pest from Yunnan, Hainan, Tibet, and Fujian of China, and tested their susceptibilities to pyrethroid, organophosphorus, oxadiazine, diamide, antibiotics and other types of insecticides (14 insecticides totally) in the laboratory.  Based on the susceptible baseline published from the previous studies, the resistance ratio was 615–1 068-fold to chlorpyrifos, 60–388-fold to spinosad, 26–317-fold to lambda-cyhalothrin, 13–29-fold to malathion, 9–33-fold to fenvalerate, 8–20-fold to deltamethrin, 3–8-fold to emamectin benzoate and 1–2-fold to chlorantraniliprole, respectively.  The median lethal concentration (LC50) of other six insecticides without the susceptible baselines was 148.27–220.96 µg mL–1 for beta-cypermethrin, 87.03–128.43 µg mL–1 for chlorfenapyr, 16.35–99.67 µg mL–1 for indoxacarb, 10.55–51.01 µg mL–1 for phoxim, 7.08–8.78 µg mL–1 for M-EBI (the mixed insecticide of emamectin benzoate and indoxcarb) and 1.49–4.64 µg mL–1 for cyantraniliprole.  This study can be helpful for chemical control as well as for resistance monitoring and management of the pest in China.
 

Key words: Spodoptera frugiperda ,  insecticides ,  resistance monitoring ,  China