Resistance of beet armyworm Spodoptera exigua (Lepidoptera: Noctuidae) to endosulfan, organophosphorus and pyrethroid insecticides in Pakistan
Resistance of beet armyworm Spodoptera exigua (Lepidoptera: Noctuidae) to endosulfan, organophosphorus and pyrethroid insecticides in Pakistan
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DOI：
10.1016/j.cropro.2010.07.025
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发表时间：
2010-12-01
期刊：
影响因子：
2.8
通讯作者：
Arif, M. Iqbal
中科院分区：
文献类型：
--
作者：
Ahmad, Mushtaq;Arif, M. Iqbal
评估了来自巴基斯坦的甜菜夜蛾（鳞翅目：夜蛾科）田间种群对氯化烃硫丹、有机磷毒死蜱和喹硫磷以及拟除虫菊酯氯氰菊酯、溴氰菊酯、联苯菊酯和甲氰菊酯的抗性。采用浸叶生物测定法，1998-2000年期间对硫丹的抗药性很高，但在减少使用硫丹之后，在2001-2007年期间降至非常低的水平。在过去三十年中，有机磷酸酯和拟除虫菊酯一直在使用，对这些杀虫剂类别的抗药性一直在增加。总体而言，1998年至2002-2003年期间，对毒死蜱和拟除虫菊酯的抗药性仍然较低，但2003-2004年至2006-2007年期间，抗药性上升到中度至高度水平。对于溴氰菊酯，2004-2007年期间的耐药性非常高。1998-2006年期间，喹硫磷抗药性仍然很低。LC 50和LC 90值的相关性分析显示，有机磷和拟除虫菊酯之间存在正相关性，但硫丹与本文测试的有机磷或拟除虫菊酯之间没有相关性。这些结果表明，传统的化学品应该被新的化学品取代，以成功地管理S。exigua. (C)2010爱思唯尔有限公司版权所有。
Field populations of beet armyworm, Spodoptera exigua (Lepidoptera: Noctuidae), from Pakistan were assessed for their resistance to the chlorinated hydrocarbon endosulfan, the organophosphates chlorpyrifos and quinalphos, and the pyrethroids cypermethrin, deltamethrin, bifenthrin and fenpropathrin. Using a leaf-dip bioassay, resistance to endosulfan was high during 1998-2000 but declined to very low, to low levels during 2001-2007, following a reduced use of the insecticide. Organophosphates and pyrethroids were consistently used over the past three decades, and the resistance had been increasing to these insecticide classes. Generally, the resistance to chlorpyrifos and pyrethroids remained low from 1998 to 2002-2003, but resistance increased to moderate to high levels from 2003-2004 to 2006-2007. For deltamethrin, resistance was very high during 2004-2007. Quinalphos resistance remained low during 1998-2006. Correlation analysis of LC50 and LC90 values showed a positive correlation between organophosphates and pyrethroids, but no correlation between endosulfan and organophosphates or pyrethroids tested herein. These results suggest that the conventional chemistries should be replaced with new chemistries for the successful management of S. exigua. (C) 2010 Elsevier Ltd. All rights reserved.