Variation in response to neonicotinoid insecticides in peach-potato aphids, Myzus persicae (Hemiptera: Aphididae)
Variation in response to neonicotinoid insecticides in peach-potato aphids, Myzus persicae (Hemiptera: Aphididae)
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DOI：
10.1002/ps.570
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发表时间：
2003-02-01
影响因子：
4.1
通讯作者：
Thompson, R
中科院分区：
文献类型：
--
作者：
Foster, SP;Denholm, I;Thompson, R
室内生物测定表明，这些化合物有效地规避了已知的羧酸酯酶，改性乙酰胆碱酯酶（MACE）和敲低（kdr）杀虫剂抗性机制，在这个物种的桃蚜（苏尔寿）的克隆应用的烟碱类杀虫剂吡虫啉，啶虫脒和烯啶虫胺。然而，一些克隆表现出交叉耐受性（高达18倍），这些化合物相对于敏感的标准。一项基于1997年至2000年间从田间和温室收集的样本评估英国桃蚜对类烟碱耐受性频率的调查显示，这种耐受性仍然很罕见。在室内模拟田间条件下对烟碱敏感和耐受桃蚜种群的试验表明，虽然后者在推荐施用量下被吡虫啉很好地控制，但当该化合物在较低浓度下施用时，它们更有可能存活和繁殖。这种情况可能周期性地出现在经吡虫啉处理的大田和温室作物中。选择有利于桃蚜的耐受形式可能会导致其频率的增加和更有效的抗烟碱类化合物的进化。(C)2003化学工业协会。
Laboratory bioassays applying the neonicotinoid insecticides imidacloprid, acetamiprid and nitenpyram against clones of the peach-potato aphid Myzus persicae (Sulzer) demonstrated that these compounds effectively circumvent the known carboxylesterase, modified acetylcholinesterase (MACE) and knock-down (kdr) insecticide resistance mechanisms in this species. However, some clones showed cross-tolerance (up to 18-fold) of these compounds relative to susceptible standards. A survey assessing the frequency of neonicotinoid tolerance in M persicae in the UK, based on samples collected from the field and glasshouses between 199711 and 2000, showed that such tolerance is still rare. Experiments on neonicotinoid-susceptible and -tolerant populations of M persicae under simulated field conditions in the laboratory showed that, although the latter were well controlled by imidacloprid applied at recommended application rates, they were more likely to survive and reproduce when this compound was applied at lower concentrations. Such conditions are probably periodically present in imidacloprid-treated field and glasshouse crops. Selection favouring tolerant forms of M persicae could lead to increases in their frequency and the evolution of more potent resistance to neonicotinoids. (C) 2003 Society of Chemical Industry.