Behavioural avoidance and enhanced dispersal in neonicotinoid-resistant Myzus persicae (Sulzer)
Behavioural avoidance and enhanced dispersal in neonicotinoid-resistant Myzus persicae (Sulzer)
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DOI：
10.1002/ps.3530
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发表时间：
2014-01-01
影响因子：
4.1
通讯作者：
Lind, Robert J.
中科院分区：
文献类型：
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作者：
Fray, Lucy M.;Leather, Simon R.;Lind, Robert J.
桃蚜Myzus persicae是一种主要的农业害虫，能够将100多种植物病毒传播给多种作物。控制主要依赖于用类烟碱杀虫剂如噻虫嗪（TMX）处理。2009年，在法国发现了一种名为FRC的菌株，该菌株对目前的类尼古丁具有255至1679倍的耐药性，此前与代谢和靶位点耐药性有关。扩散行为可能进一步增强该菌株的抗性。本研究探讨了这种可能性，是第一个比较的扩散行为的相同物种的蚜虫克隆具有不同水平的类烟碱类药物的resistance.ApplyTS的扩散行为的FRC株与克隆的较低的类烟碱类药物的抗性（5191 A），和敏感的克隆（US1L）突出了几个差异。最重要的是，FRC菌株表现出增加的能力，以定位未处理的地区时，提出了一个环境，包括TMX处理和未处理的植物tissue.CONCLUSIONThe改变的分散行为的FRC可能部分占高水平的类烟碱类药物的耐药性表现出该菌株在该领域。由于蚜虫媒介的传播是病毒在农田中传播的关键，这对当前的作物保护实践具有影响。(c)2013年化学工业协会
BACKGROUNDThe peach potato aphid Myzus persicae is a major agricultural pest capable of transmitting over 100 plant viruses to a wide range of crops. Control relies largely upon treatment with neonicotinoid insecticides such as thiamethoxam (TMX). In 2009, a strain denoted FRC, which exhibits between 255- and 1679-fold resistance to current neonicotinoids previously linked to metabolic and target site resistance, was discovered in France. Dispersal behaviour may potentially further enhance the resistance of this strain. This study investigated this possibility and is the first to compare the dispersal behaviour of aphid clones of the same species with differing levels of neonicotinoid resistance.RESULTSComparing the dispersal behaviour of the FRC strain with that of a clone of lower neonicotinoid resistance (5191A), and a susceptible clone (US1L) highlighted several differences. Most importantly, the FRC strain exhibited an increased ability to locate untreated areas when presented with an environment consisting of both TMX-treated and untreated plant tissue.CONCLUSIONThe altered dispersal behaviour of the FRC may partially account for the high level of neonicotinoid resistance exhibited by this strain in the field. Since the dispersal of aphid vectors is key to the transmission of viruses across crop fields this has implications for current crop protection practice. (c) 2013 Society of Chemical Industry