Insecticide resistance in Bemisia tabaci biotype Q (Hemiptera: Aleyrodidae) from China
Insecticide resistance in Bemisia tabaci biotype Q (Hemiptera: Aleyrodidae) from China
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DOI：
10.1016/j.cropro.2009.10.001
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发表时间：
2010-05-01
期刊：
影响因子：
2.8
通讯作者：
Gorman, K.
中科院分区：
文献类型：
--
作者：
Luo, C.;Jones, C. M.;Gorman, K.
近几十年来，入侵生物型烟粉虱（烟粉虱）的扩散导致许多国家的作物保护受到长期限制。这些多食性、高效的植物病毒载体提出了一个棘手的问题，因为它们经常携带多种不同的杀虫剂抗性机制。自 20 世纪 90 年代以来，在中国的许多地区，本土生物型已被入侵性且全球广泛传播的 B 生物型所取代。最近，Q 生物型的出现，对全国农业生产系统构成了新的、更强大的威胁。对涵盖生物型 B 和 Q 的一系列中国烟粉虱菌株的杀虫剂抗性概况进行了检查，以确定杀虫剂在生物型竞争和最终置换中发挥关键作用的潜力。常用化合物包括拟除虫菊酯、新烟碱类、阿维菌素和吡丙醚，因为广泛使用是驱动全国范围内种群动态的先决条件。研究发现，在几种菌株中，两种生物型对拟除虫菊酯、阿维菌素和吡丙醚的反应相似。然而，他们对三种市售新烟碱类杀虫剂的反应始终相反。生物型 B 菌株对啶虫脒、吡虫啉和噻虫嗪仍然非常敏感，而生物型 Q 菌株对这些杀虫剂表现出 20-170 倍的抗性。在中国，新烟碱类杀虫剂的使用似乎有可能在混合生物型区域内选择生物型Q，从而有助于这种相对较新的引入的建立和流行。 Crown 版权所有 (C) 2009 由 Elsevier Ltd 出版。保留所有权利。
Dispersion of invasive biotypes of the tobacco whitefly, Bemisia tabaci, has led to protracted crop protection constraints in numerous countries over recent decades. These polyphagous, highly efficient vectors of plant viruses present an intractable problem as they frequently carry a diverse suite of insecticide resistance mechanisms. In many areas of China, native biotypes have been supplanted by the invasive and globally widespread biotype B since the 1990s. More recently, biotype Q has established, posing a new and more potent threat to agricultural production systems throughout the country. Insecticide resistance profiles for a range of Chinese B. tabaci strains covering biotypes B and Q were examined, to establish the potential for insecticides to play a pivotal role in biotype competition and ultimate displacement. Commonly used compounds including pyrethroids, neonicotinoids, abamectin and pyriproxyfen were targeted as widespread use is pre-requisite to drivers of population dynamics on a national scale.It was found that across several strains, both biotypes responded similarly against pyrethroids, abamectin and pyriproxyfen. However, their responses to three commercially available neonicotinoids were consistently contrasting. Biotype B strains remained largely susceptible to acetamiprid, imidacloprid, and thiamethoxam, whereas biotype Q strains expressed 20-170 fold resistance to these insecticides. It appears that in China the use of neonicotinoid insecticides has the potential to select for biotype Q within mixed biotype areas, contributing to the establishment and prevalence of this relatively recent introduction. Crown Copyright (C) 2009 Published by Elsevier Ltd. All rights reserved.