Journal of Integrative Agriculture ›› 2022, Vol. 21 ›› Issue (7): 2055-2064.DOI: 10.1016/S2095-3119(21)63714-0

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双丙环虫酯亚致死浓度抑制棉蚜的种群生长

  

  • 收稿日期:2021-02-23 接受日期:2021-04-16 出版日期:2022-07-01 发布日期:2021-04-16

A sublethal concentration of afidopyropen suppresses the population growth of the cotton aphid, Aphis gossypii Glover (Hemiptera: Aphididae)

MA Kang-sheng1, 2*, TANG Qiu-ling1*, LIANG Ping-zhuo1, LI Jian-hong2, GAO Xi-wu1    

  1. 1 Department of Entomology, China Agricultural University, Beijing 100193, P.R.China 
    2 Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, P.R.China  
  • Received:2021-02-23 Accepted:2021-04-16 Online:2022-07-01 Published:2021-04-16
  • About author:MA Kang-sheng, Mobile: +86-13611281656, E-mail: txma1986@163.com; TANG Qiu-ling, Mobile: +86-15201426099, E-mail: tangqiuling1145@163.com; Correspondence GAO Xi-wu, Tel: +86-10-62732974, E-mail: gaoxiwu@263.net.cn * These authors contributed equally to this study.
  • Supported by:
    This work was supported by the National Natural Science Foundation of China (31801760 and 31871997) and the Fundamental Research Funds for the Central Universities, China (2662019QD052).  

摘要:

本研究旨在明确双丙环虫酯对棉蚜的急性毒性和双丙环虫酯亚致死浓度处理对棉蚜生物学特性的影响。结果表明,双丙环虫酯对棉蚜成虫高毒,其72 h的LC50值为1.062 mg L-1。双丙环虫酯亚致死浓度(LC10)处理能够显著降低了F0代和F1代雌成虫的寿命、产蚜量及产蚜天数。同时,LC10浓度处理后,棉蚜F1代的成虫前期存活率也下降了30%。此外,与对照相比,双丙环虫酯处理后F1代若虫发育历期、成虫前期、成虫产蚜前期、总产蚜前期均显著延长。双丙环虫酯亚致死浓度处理显著降低了F1代的净繁殖率(R0)、内禀增长率(r)和周限增长率(λ)。这些结果表明,双丙环虫酯亚致死浓度能够显著抑制棉蚜的种群增长。本研究结果将有助于科学评估双丙环虫酯对棉蚜的影响


Abstract: The cotton aphid, Aphis gossypii Glover (Hemiptera: Aphididae), is an important insect pest of cotton crops worldwide.  The objectives of this study were to determine the acute toxicity of afidopyropen and whether there are any effects of sublethal concentrations of afidopyropen on the biological characteristics of A. gossypii.  The results showed that afidopyropen possesses high acute toxicity to adult A. gossypii with a 72 h LC50 value of 1.062 mg L–1.  A sublethal concentration (LC10) of afidopyropen significantly decreased adult longevity, fecundity and oviposition days of female adults in both F0 and F1 generations.  The total pre-adult survival of F1 progeny was also significantly reduced by 30% at the LC10 of afidopyropen.  In addition, the nymph developmental time, pre-adult period, adult pre-reproductive period (APRP), and total pre-reproductive period (TPRP) of the F1 progeny were significantly prolonged compared with the control.  Several population parameters, including the net reproductive rate (R0), intrinsic rate of increase (r) and finite rate of increase (λ) of F1 progeny were significantly decreased by a sublethal afidopyropen concentration exposure.  These results indicated that sublethal concentration of afidopyropen can significantly suppress A. gossypii population growth.  It would be useful for assessing the overall effects of afidopyropen on A. gossypii.  

Key words: afidopyropen , Aphis gossypii ,  sublethal effects , longevity , fecundity