数字农科院2.0

Cycloxaprid: a novel cis-nitromethylene neonicotinoid insecticide to control Bemisia tabaci

文献类型： 外文期刊

作者： Wang, Qinqin;Wang, Qiyuan;Yuan, Huizhu;Cui, Li;Rui, Changhui;Wang, Li

作者机构：

关键词： Bemisia tabaci; cycloxaprid; imidacloprid-resistance; sublethal effect

期刊名称： Pest Management Science

ISSN： 1526-498X

年卷期： 2020 年 1 卷 5 期

页码：

收录情况： JCR（2021版）

摘要： BACKGROUND Bemisia tabaci is a worldwide insect pest with high ability to develop resistance to many insecticides. Cycloxaprid is a novel cis-configuration neonicotinoid insecticide that is effective against a wide range of imidacloprid-resistant pests. RESULTS The lethal and sublethal effects of cycloxaprid on B. tabaci B were estimated. Cycloxaprid showed higher toxicity against adult, nymph and egg of B. tabaci B than imidacloprid. And cycloxaprid provided better efficacies against B. tabaci than imidacloprid in fields. Moreover, cycloxaprid was similarly toxic to the relatively susceptible and imidacloprid-resistant populations. The LC50 of cycloxaprid against the resistant adult, nymph and egg were 6.2, 11.5 and 111.3 mg L-1, respectively, while they were 5.7, 8.9 and 129.4 mg L-1 for the susceptible population. In addition, when resistant adult of B. tabaci B was treated with LC30 of cycloxaprid (3.2 mg L-1), the net reproductive rate and female ratio of F1 generation B. tabaci were reduced. Moreover, the age-specific fecundity demonstrated the highest fecundity sharply decreased in cycloxaprid (7.0 offspring/ day) treated group compared with the control (26.0 offspring/ day). CONCLUSIONS Our results indicated that cycloxaprid is a promising insecticide for the management of B. tabaci and insecticide-induced resurgence might not occur after exposure of B. tabaci to low sublethal concentrations of cycloxaprid. (c) 2019 Society of Chemical Industry

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