Response of a red clone of Myzus persicae (Hemiptera: Aphididae) to sublethal concentrations of imidacloprid in the laboratory and greenhouse
Response of a red clone of Myzus persicae (Hemiptera: Aphididae) to sublethal concentrations of imidacloprid in the laboratory and greenhouse
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DOI：
10.1002/ps.2113
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发表时间：
2011-06-01
影响因子：
4.1
通讯作者：
Jones, Gary
中科院分区：
文献类型：
--
作者：
Janmaat, Alida;Borrow, Erin;Jones, Gary
背景技术背景：由于对亚致死杀虫剂浓度的刺激（激素）反应，施用杀虫剂后可能发生害虫死灰复燃。本研究的目的是研究潜在的温室衍生的红色克隆桃蚜表现出复苏由于激素反应后，系统性的吡虫啉治疗在一个甜椒greenhouse.RESULTS：没有差异的死亡率和繁殖力之间无翅的成年人暴露于亚致死浓度的吡虫啉浓度切除辣椒叶喂水溶液的吡虫啉。第一代后代的存活率受到吡虫啉暴露的负面影响，但存活的后代未暴露于吡虫啉的成年人的后代的发育率或繁殖力没有显着差异。蚜虫死亡率下降最迅速的夹笼在顶部的辣椒冠辣椒叶片相比，目前在中部或底部的辣椒covery.CONCLUSION：吡虫啉迅速腐烂在成熟的辣椒植株，导致在上冠层的亚致死浓度在短短4周。亚致死杀虫剂浓度与害虫种群的复苏有关;然而，暴露于亚致死剂量的吡虫啉不太可能导致杀虫剂诱导的M。桃蚜无性系。(C)2011年化学工业协会
BACKGROUND: Pest resurgence following a pesticide application may occur owing to a stimulatory (hormetic) response to sublethal insecticide concentrations. The objective of the present study was to examine the potential for a greenhouse-derived red clone of Myzus persicae to exhibit resurgence owing to a hormetic response following a systemic imidacloprid treatment in a bell pepper greenhouse.RESULTS: No differences in mortality and fecundity were observed among apterous adults exposed to sublethal imidacloprid concentrations on excised pepper leaves fed aqueous solutions of imidacloprid. Survival of first-generation progeny was negatively affected by imidacloprid exposure, yet surviving progeny exhibited no differences in development rates or fecundity from progeny of adults unexposed to imidacloprid. Aphid mortality declined most rapidly in clip cages on pepper leaves at the top of the pepper canopy as compared with leaves present at the middle or bottom of the pepper canopy.CONCLUSION: Imidacloprid decays rapidly in mature pepper plants, resulting in sublethal concentrations in the upper canopy in as little as 4 weeks. Sublethal insecticide concentrations have been implicated in the resurgence of pest populations; however, exposure to sublethal doses of imidacloprid are unlikely to result in pesticide-induced resurgence of the M. persicae aphid clone examined in this study. (C) 2011 Society of Chemical Industry