The Sublethal Effects of Chlorantraniliprole on Helicoverpa armigera (Lepidoptera: Noctuidae)
文献类型: 外文期刊
作者: Zhang Rui-min 1 ; Dung Jun-feng 1 ; Chen Jia-hua 1 ; Ji Qing-e 1 ; Cui Jin-jie 1 ;
作者机构: 1.Department of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou 350002, P.R.China
2.College of Forestry, Henan University of Science and Technology, Luoyang 471003, P.R.China
3.Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang 455000, P.R.China
关键词: Helicoverpa armigera;chlorantraniliprole;sublethal effects;sublethal concentration
期刊名称:JOURNAL OF INTEGRATIVE AGRICULTURE ( 影响因子:2.848; 五年影响因子:2.979 )
ISSN: 2095-3119
年卷期: 2013 年 12 卷 3 期
页码:
收录情况: SCI
摘要: Sublethal effects of chlorantraniliprole to Helicoverpa armigera (Hubner) larvae were evaluated through exposure of third instar larvae to the insecticide incorporated into an artificial diet. When larvae were fed on the insecticide-containing diet for 7 d, the LC10, LC20, LC40, and LC50 values were 3.790, 7.977, 21.577, and 33.121 mu g active ingredient L-1, respectively. Chlorantraniliprole at sublethal concentrations significantly reduced the larval body mass, emergence ratio, adult longevity and egg hatching rate in both the parental and offspring generations. The pupation and copulation rate in the parental generation and the pupal mass in the offspring also strongly decreased. Reproduction was seriously disturbed in both the parental and offspring groups even when only one of the partners was exposed to chlorantraniliprole at larval stages. However, at the lowest concentration of exposure (LC10), offspring fecundity was strongly reduced only when both partners were exposed. The net reproductive rate (R-0), intrinsic rate of increase (r(m)), and gross reproduction rate (GRR) at LC20, LC40 concentrations were significantly lower than that of the control. Post-exposure effects also included an extended larval developmental time and increased male proportion in both generations. The doubling time (Dt) at LC20, LC40 concentrations as well as gross reproduction rate (GRR) at LC10 concentration were also significantly increased. Chlorantraniliprole might have significant effects on H. armigera population dynamics even at sublethal concentrations on both parental and offspring generations.
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