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Lethal, sublethal and transgenerational effects of broflanilide on Tuta absoluta

文献类型： 外文期刊

作者： Qu, Cheng 1 ; Chen, Cai-lin 1 ; Li, Yun-yi 1 ; Yin, Yan-qiong 4 ; Feng, Yao-fang 1 ; Wang, Ran 1 ; Luo, Chen 1 ;

作者机构： 1.Beijing Acad Agr & Forestry Sci, Inst Plant Protect, Beijing 100097, Peoples R China

2.China Agr Univ, Dept Entomol, Beijing 100193, Peoples R China

3.Shanxi Agr Univ, Coll Plant Protect, Taigu 030801, Peoples R China

4.Yunnan Acad Agr Sci, Agr Environm & Resources Inst, Kunming 650205, Peoples R China

关键词： diamides; insecticide; South American tomato pinworm

期刊名称：ENTOMOLOGIA GENERALIS （ 影响因子：6.9； 五年影响因子：5.2 ）

ISSN： 0171-8177

年卷期： 2023 年 44 卷 2 期

页码：

收录情况： SCI

摘要： The tomato pinworm, Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae), is an invasive and destructive pest worldwide that feeds on solanaceous plants. T. absoluta has become resistant to most insecticides in current use. Broflanilide is a novel meta-diamide insecticide, which can bind to a new site on the gamma-aminobutyric acid receptor and efficiently control insect pests of the order Lepidoptera. In this study, the acute lethal effects of flubendiamide, tetraniliprole, cyantraniliprole, chlorantraniliprole and broflanilide and the sublethal effects of broflanilide on the 2nd instar larvae of T. absoluta were assessed by leaf dip method. Among the five insecticides tested, broflanilide was the most toxic to T. absoluta with a LC50 of 0.232 mg/L. The sublethal effects of broflanilide on T. absoluta were observed at LC10 (0.053 mg/L) and LC25 (0.107 mg/L) concentrations. After exposure to low lethal concentrations of broflanilide, the larval duration was significantly prolonged, whereas the pupation rate, emergence rate and fecundity of females were all significantly decreased in F0 generation. In F1 generation, broflanilide treatments resulted in a significant decrease in female fecundity. Moreover, life-table parameters of F1 generation including the mean fecundity (F), the net reproductive rate (R0), and the intrinsic rate of population increase (r) were significantly reduced, and the mean generation time (T) was increased when compared to the control. The lethal and sublethal effects of broflanilide on T. absoluta suggested that broflanilide has good potential for management of T. absoluta.

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