Baseline susceptibility and cross-resistance of cycloxaprid, a novel cis-nitromethylene neonicotinoid insecticide, in Bemisia tabaci MED from China
文献类型： 外文期刊
作者： Wang, Ran 1 ; Fang, Yong 2 ; Mu, Changqing 3 ; Qu, Cheng 1 ; Li, Fengqi 1 ; Wang, Zhenyu 4 ; Luo, Chen 1 ;
作者机构： 1.Beijing Acad Agr & Forestry Sci, Inst Plant & Environm Protect, Beijing 100097, Peoples R China
2.Hunan Acad Agr Sci, Plant Protect Inst, Changsha 410125, Hunan, Peoples R China
3.Beijing Stn Plant Protect, Beijing 100029, Peoples R China
4.Cent China Normal Univ, Coll Chem, Wuhan 430079, Hubei, Peoples R China
关键词： Bemisia tabaci; Cycloxaprid; Neonicotinoids; Baseline susceptibility; Cross-resistance
期刊名称：CROP PROTECTION （ 影响因子：2.571； 五年影响因子：3.11 ）
ISSN： 0261-2194
年卷期： 2018 年 110 卷
页码：
收录情况： SCI
摘要： The tobacco whitefly Bemisia tabaci (Gennadius) is an important crop pest which threatens agriculture worldwide. It has evolved resistance to various classes of insecticides. Cycloxaprid is a new-generation neonicotinoid which is a (nitromethylene) imidazole analogue of imidacloprid which is highly efficient for the control of various Hemipteran pests in China. Studies were conducted to determine the baseline susceptibility to cycloxaprid of 18 field samples of B. tabaci collected from 9 geographical locations in China and the possibility of cross-resistance between cycloxaprid and other important neonicotinoids of one laboratory-selected resistant strain. The 50% lethal concentrations (LC50) of cycloxaprid to these 18 samples ranged from 0.84 to 12.17 mg/L. Furthermore, compared with the susceptible laboratory strain, the imidacloprid-resistant strain exhibited a 27.9-fold resistance to imidacloprid and lower level of cross-resistance to acetamiprid (16.3-fold), thiacloprid (13.7-fold) and nitenpyram (16.6-fold), but no cross-resistance to cycloxaprid (1.9-fold). These results demonstrate that cycloxaprid could be one effective alternative insecticide for whitefly management that could reduce imidacloprid selection pressure. (C) 2017 Elsevier Ltd. All rights reserved.
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