摘要
为探讨溴氰菊酯对烟草粉螟的亚致死效应,本文采用烟叶浸渍法以溴氰菊酯亚致死浓度(LC 10和LC 25)胁迫烟草粉螟3龄幼虫,并通过年龄-龄期两性生命表的方法探究溴氰菊酯胁迫对烟草粉螟发育和繁殖的影响。结果显示:与对照相比,溴氰菊酯LC 10、LC 25处理F 0代的平均单雌产卵量显著下降;LC 25处理F 0代的产卵前期及总产卵前期明显长于对照;LC 25处理与LC 10处理和对照间,F 0代雌、雄虫寿命均差异显著;LC 10处理和LC 25处理F 1代与对照存活率明显下降,F 1代各处理间的卵、1龄幼虫、3龄幼虫、5龄幼虫、7龄幼虫和蛹的发育历期无显著差异;但LC 25处理组2龄、4龄、6龄幼虫历期比对照延长了且差异显著;LC 25处理组的成虫前期比对照组延长了且差异显著。同时LC 25处理的雌、雄虫寿命最短,但3个处理间差异不显著。研究表明,亚致死浓度的溴氰菊酯能够抑制烟草粉螟的生长发育和繁殖,以上研究结果可为田间用药控制烟草粉螟提供理论参考。
In order to investigate the sublethal effect of deltamethrin on Ephestia elutella Hübner,the sublethal effects of deltamethrin(LC 10 and LC 25)on the development and reproduction of E.elutella were studied by tobacco leaf impregnation method,and the data were analyzed by age-stage-specific life table method.The results showed that the average single female oviposition of F 0 generation treated with LC 25 and LC 10 was significantly less than that of the control;the pre-ovulation period and total pre-ovulation period of LC 25 treatment were significantly longer than the control;between LC 25 treatment and LC 10 treatment and control,the life span of female and male were very different.There were no significant difference in the developmental duration of eggs,1 st instar larvae,3 rd instar larvae,5 th instar larvae,7 th instar larvae and pupa in the F 1 generation.However,the duration of the 2 nd,4 th,and 6 th instar larvae in the LC 25 treatment group was higher than that of the control,and the difference was significant.The adult stage of the LC 25 treatment group was prolonged and significantly different than the control group.At the same time,the life expectancy of LC 25 treatment of females and males was the shortest,but the difference between the three treatments was not significant.Studies have shown that sublethal concentrations of deltamethrin can inhibit the growth and reproduction of E.elutella.The above results can provide reference for field treatment of E.elutella.
作者
袁敏
韦治艳
杨洪
欧后丁
杨茂发
金鑫
YUAN Min;WEI Zhi-Yan;YANG Hong;OU Hou-Ding;YANG Mao-Fa;JIN Xin(Institute of Entomology,Guizhou University,The Provincial Key Laboratory for Agricultural Pest Management of Mountainous Region,Guiyang 550025,China;College of Tobacco Science of Guizhou University.Guiyang 550025,China;Guiyang Tobacco Company in Guizhou Province.Guiyang 550003,China)
出处
《环境昆虫学报》
CSCD
北大核心
2020年第2期459-470,共12页
Journal of Environmental Entomology
基金
贵阳市烟叶仓储害虫发生规律及防治研究(筑烟科[2015]01号)。
关键词
烟草粉螟
溴氰菊酯
年龄-龄期两性生命表
亚致死
Ephestia elutella Hübner
deltamethrin
age-stage-specific life tables
sublethal
