中国水稻科学 ›› 2012, Vol. 26 ›› Issue (3): 361-364.DOI: 10.3969/j.issn.10017216.2012.03.016

• 研究简报 • 上一篇    下一篇

亚致死剂量吡虫啉和吡蚜酮对褐飞虱生物适合度的影响

刘淑华1 ,杨保军1 ,刘双2 ,丁志平3 ,刘泽文3 ,唐健1,*   

  1. 1中国水稻研究所 水稻生物学国家重点实验室, 浙江 杭州 310006;  2湖南农业大学 植物保护学院, 湖南 长沙410128;3南京农业大学 植物保护学院/农业部病虫监测与治理重点开放实验室,  江苏 南京 210095;
  • 收稿日期:2011-08-16 修回日期:2011-09-21 出版日期:2012-05-10 发布日期:2012-05-10
  • 通讯作者: 唐健1,*
  • 基金资助:

    中央级公益性科研院所基本科研业务费专项(2009RG0042);水稻生物学国家重点实验室2009年度开放课题资助项目(110401);浙江省重大科技项目(2010C12026)。

Effects of Sublethal Dose of Imidacloprid and Pymetrozine on Relative Biological Fitness of Brown Planthopper, Nilaparvata lugens

LIU  Shuhua 1 , YANG  Baojun 1 , LIU  Shuang 2 , DING  Zhiping 3, LIU  Zewen 3 , TANG  Jian 1,*   

  1. 1 State Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou 310006, China;  2 College of Plant Protection, Hunan Agricultural University, Changsha  410128, China; 3 Key Laboratory of Monitoring and Management of Plant Diseases and Insects, Ministry of Agriculture, College of Plant Protection, Nanjing Agricultural University, Nanjing  210095, China;
  • Received:2011-08-16 Revised:2011-09-21 Online:2012-05-10 Published:2012-05-10
  • Contact: TANG Jian1,*

摘要: 全面评价了亚致死剂量吡虫啉和吡蚜酮对褐飞虱繁殖力和生存力的长期影响。毒力测定结果显示,吡虫啉和吡蚜酮对褐飞虱3龄若虫的LC50分别为42.41 mg/L和396.46 mg/L,吡虫啉毒力约是吡蚜酮毒力的9.35倍。通过建立褐飞虱在吡虫啉和吡蚜酮亚致死剂量(LC30)作用下的生命表,发现褐飞虱在两种药剂处理下生物适合度都有所下降,分别为对照试虫的83.8%和8.4%。吡虫啉处理试虫仅羽化率明显低于对照,而吡蚜酮处理试虫的羽化率、雌虫比例、雌成虫寿命和卵孵化率各参数都明显下降。亚致死剂量的吡蚜酮使褐飞虱日产卵节律和卵孵化高峰都有所推迟,这可能是吡蚜酮对褐飞虱产生取食抑制作用进而导致其生殖器官发育缓慢造成的。

关键词: 褐飞虱, 吡虫啉, 吡蚜酮, 亚致死剂量, 生物适合度

Abstract: Longterm influences of sublethal dose of imidacloprid and pymetrozine on reproduction and biological fitness of the brown planthopper(BPH) were evaluated. Bioassay results showed that the LC50 values for imidacloprid and pymetrozine were 42.41 mg/L and 396.46 mg/L, respectively,  suggesting imidacloprid was approximately 9.35 times more toxic  than pymetrozine. The effects of the sublethal dose (LC30) of imidacloprid and pymetrozine on  the fitness of the brown planthopper  were evaluated by constructing and comparing the life  tables. Results revealed that   the biological  fitness of BPH exposed to imidacloprid and  pymetrozine had reduced to only 83.8% and 8.4% of the control, respectively. In imidacloprid treatment,  there was only an obvious decline in emergence rate of adult. However,  the emergence rate of adult, female adult ratio, female adult duration and eggs hatching rate  were conspicuously reduced under pymetrozine  treatment. In addition, the egg laying and fecundity fastigium of BPH  exposed  to sublethal pymetrozine were postponed compared to the control, which is probably  correlated with the delayed development of genitalia caused by pymetrozine’s feeding inhibition effects.

Key words: Nilaparvata lugens, imidacloprid, pymetrozine, sublethal dose, biological fitness

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