新疆农业科学 ›› 2021, Vol. 58 ›› Issue (10): 1860-1867.DOI: 10.6048/j.issn.1001-4330.2021.10.012

• 棉花化肥农药减施 • 上一篇    下一篇

氟啶虫酰胺亚致死浓度处理棉蚜对十一星瓢虫捕食功能反应的影响

魏引弟(), 马雪, 韩旭, 麻正辉, 张笑丽, 姚永生(), 熊仁次()   

  1. 塔里木大学植物科学学院/南疆农业有害生物综合治理兵团重点实验室,新疆阿拉尔 843300
  • 收稿日期:2021-03-15 出版日期:2021-10-20 发布日期:2021-10-26
  • 通信作者: 姚永生,熊仁次
  • 作者简介:魏引弟(2000-),女,新疆人,硕士研究生,研究方向为害虫综合治理,(E-mail) 2802770619@qq.com
  • 基金资助:
    国家重点研发计划(2017YFD0201900);棉花生物学国家重点实验室开放课题(CB2020A20);大学生创新创业训练计划(202010757012);大学生创新创业训练计划(202110757021)

Effects on Predation Response of Coccinella undecimpunctata Fed on Aphis gossypii Treated with Sublethal Doses of Flonicamid

Yindi WEI(), Xue MA, Xu HAN, Zhenghui MA, Xiaoli ZHANG, Yongsheng YAO(), Renci XIONG()   

  1. Key Laboratory for Agricultural IPM in Southern Xinjiang / College of Plant Science, Tarim University, Alar Xinjiang 843300, China
  • Received:2021-03-15 Online:2021-10-20 Published:2021-10-26
  • Correspondence author: Yongsheng YAO, Renci XIONG
  • Supported by:
    National Key R & D Program Project(2017YFD0201900);State Key Laboratory Project for Cotton Biology(CB2020A20);Innovative Training Program Project for College Students(202010757012);Innovative Training Program Project for College Students(202110757021)

摘要:

【目的】研究氟啶虫酰胺亚致死浓度处理棉蚜对十一星瓢虫捕食功能反应的影响,为合理使用杀虫剂和协同生物防治防控棉蚜提供科学依据。【方法】测定氟啶虫酰胺对棉蚜的毒力,以供试药剂的LC25、LC50为处理浓度,采用浸叶法处理棉蚜,选取活体棉蚜作为十一星瓢虫的食物,分析对其捕食功能反应的影响。【结果】饲喂氟啶虫酰胺不同亚致死浓度处理棉蚜后,十一星瓢虫捕食功能反应等参数及寻找效应均有一定影响,且随药剂浓度增加,对其捕食能力影响越大。饲喂氟啶虫酰胺LC50处理的棉蚜后,十一星瓢虫日捕食量及搜寻能力显著降低,与对照相比,十一星瓢虫1、2、3、4龄幼虫和成虫的瞬时攻击率分别下降0.38%、7.18%、2.19%、16.83%、1.41%,处理一头棉蚜所用的时间分别延长0.002 4 d、0.001 6 d、0.000 6 d、0.000 5 d、0.000 1 d,日最大捕食量分别下降0.72、2.52、7.76、7.01、1.17头/皿。【结论】饲喂氟啶虫酰胺亚致死浓度处理棉蚜对十一星瓢虫1~4龄幼虫及成虫的瞬时攻击率降低,处理棉蚜所用时间延长,日最大捕食量下降。其中饲喂氟啶虫酰胺LC50处理棉蚜对十一星瓢虫各虫态捕食功能有显著影响。

关键词: 十一星瓢虫; 氟啶虫酰胺; 亚致死浓度; 棉蚜; 捕食功能

Abstract:

【Objective】 To provide a scientific basis for the rational use of pesticides and the cooperative biological control of Aphis gossypii by studying the effects on predation response of Coccinella undecimpunctata feeding on A. gossypii treated with sublethal doses of flonicamid. 【Methods】 According to the results of toxicity determination of LC25 and LC50 of flonicamid on A. gossypii, the influence of predation response of C. undecimpunctata feeding on A. gossypii treated with sublethal doses by the leaf soaking method were determined. 【Results】 The results showed that A. gossypii treated with flonicamid of different concentrations had certain influence on the predation function response and search effect of C. undecimpunctata, and with the increase of the concentration of the insecticides, the effect on the predation ability was greater. Especially after feeding A. gossypii treated with flonicamid LC50, the daily maximum consumption and searching ability of C. undecimpunctata were significantly lower than that of CK, C. undecimpunctata‘s 1, 2, 3, 4 instars and adult instantaneous attack rate fell by 0.38%, 7.18%, 2.19%, 16.83% and 1.41%, the handling times required for a head of A. gossypii were extended the 0.002,4 d, 0.001,6 d, 0.000,6 d, 0.000,5 d and 0.000,1 d. The daily maximum consumption decreased by 0.72, 2.52, 7.76, 7.01 and 1.17 heads/dish, respectively. 【Conclusion】 The instantaneous attack rates of C. undecimpunctata of 1-4 instar larva and adult fed on A. gossypii treated with sublethal doses of flonicamid were reduced, the handling time was prolonged to certain degree, and the daily maximum predation amount decreased. Among them, A. gossypii treated with flonicamid LC50 had the most obvious effect on the individual state of C. undecimpunctata.

Key words: Coccinella undecimpunctata; flonicamid; sublethal concentration; Aphis gossypii; predation response

中图分类号: 


ISSN 1001-4330 CN 65-1097/S
邮发代号:58-18
国外代号:BM3342
主管:新疆农业科学院
主办:新疆农业科学院 新疆农业大学 新疆农学会

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