Lethal, sublethal and transgenerational effects of the novel chiral neonicotinoid pesticide cycloxaprid on demographic and behavioral traits of Aphis gossypii (Hemiptera: Aphididae)
文献类型: 外文期刊
第一作者: Li, Jin-Hua
作者: Li, Jin-Hua;Liu, Yong-Qiang;Cui, Li;Lu, Yan-Hui;Wu, Kong-Ming;Yuan, Hai-Bin;Li, Jin-Hua;Xu, Xiao-Yong;Li, Zhong;Desneux, Nicolas
作者机构:
关键词: cotton aphid;electrical penetration graph (EPG);life table;neonicotinoid;sublethal;toxicity
期刊名称:INSECT SCIENCE ( 影响因子:3.262; 五年影响因子:3.206 )
ISSN: 1672-9609
年卷期: 2017 年 24 卷 5 期
页码:
收录情况: SCI
摘要: Aphis gossypii Glover (Hemiptera: Aphididae) is a key pest in cotton crops, notably owing to its increasing resistance to commonly used pesticides. Such resistance prompts for the development of integrated pest management (IPM) programs that include novel pesticides being effective against the aphid. In the present study, we assessed lethal and sublethal effects of cycloxaprid, a novel chiral neonicotinoid pesticide developed in China, on A. gossypii. The lethal concentration at 50% (LC50) value of cycloxaprid on A. gossypii was estimated, using the dipping method, at 7.73 mg/L. The impact of a sublethal concentration (LC10) and a lethal concentration (LC40) of cycloxaprid on A. gossypii population growth and feeding behavior (using electrical penetration graph technique [EPG]), and its transgenerational effect were further assessed. Adult longevity and fecundity significantly decreased after exposure to LC40 or LC10 of cycloxaprid. Cycloxaprid with sublethal concentrations (especially LC40) had negative effects on phloem ingestion by A. gossypii. Additionally, the offspring of the adults exposed to LC40 of cycloxaprid had shorter nymphal development duration and adult longevity than the control, and those from LC10 and LC40 treatments had lower adult fecundity and net productive rate. We demonstrated that cycloxaprid is a pesticide showing both lethal and sublethal activities, and transgenerational effects on A. gossypii; it may be useful for implementation in IPM programs against this aphid pest.
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