Lethal and sublethal effects of chlorantraniliprole on Helicoverpa armigera adults enhance the potential for use in 'attract-and-kill' control strategies

文献类型： 外文期刊

第一作者： Zhang, Qian

作者： Zhang, Qian;Liu, Yongqiang;Wyckhuys, Kris A. G.;Liang, Haishen;Lu, Yanhui;Desneux, Nicolas

作者机构：

关键词： moth control; adult survival; reproduction; egg hatching; integrated pest management (IPM)

期刊名称：ENTOMOLOGIA GENERALIS （ 影响因子：5.625； 五年影响因子：4.207 ）

ISSN： 0171-8177

年卷期： 2021 年 41 卷 1 期

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收录情况： SCI

摘要： Background: The integrated use of plant-derived volatile attractants and synthetic insecticides in attract-and-kill programs could provide a basis for selective and environmentally-acceptable pest management strategies with applicability for use against multiple pests. Ryanoid insecticide, chlorantraniliprole, has been found to present a potential for use in attract-and-kill strategies against the cotton bollworm Helicoverpa armigera, however lethal and sublethal effects on the adults have not been investigated yet. Results: Laboratory trials showed how chlorantraniliprole was active against H. armigera adults, with respective lethal concentration LC20 and LC50 values of 0.010 and 0.036 mg L-1. Following exposure to a low lethal concentration (LC20) and LC50, mating rate, fecundity and longevity of both H. armigera sexes were substantially reduced. Egg hatching was lowered 2- and 5-fold in LC2 - and LC50 -treated H. armigera pairs, respectively. When exposed to LC50 of chlorantraniliprole, the net reproduction rate (R-0), intrinsic rate of increase (r) and finite rate of increase (2) were reduced when compared to control treatments. Significantly lower effects were observed on the subsequent development and growth of H. armigera in subsequent generations. Following adult exposure to the two concentrations tested, no effects were observed on detoxification enzymes i.e., carboxyl esterase (CarE), glutathione S-transferase (GST) or mixed function oxidase (MFOs). Conclusions: Chlorantraniliprole concentrations could lower H. armigera adult survival and reproduction, and the LC50 showed high potential for being used to control H. armigera through attract-and-kill schemes.

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