Neonicotinoid resistance in rice brown planthopper, Nilaparvata lugens
Neonicotinoid resistance in rice brown planthopper, Nilaparvata lugens
复制标题
DOI：
10.1002/ps.1635
复制
发表时间：
2008-11-01
影响因子：
4.1
通讯作者：
Nauen, Ralf
中科院分区：
文献类型：
--
作者：
Gorman, Kevin;Liu, Zewen;Nauen, Ralf
背景：水稻褐飞虱（Nilaparvata lugens Stal）是栽培水稻的主要害虫，有效防治对作物经济生产至关重要。据报道，近年来对新烟碱类杀虫剂，特别是吡虫啉的耐药性日益受到限制。为调查耐药程度，2005年和2006年期间在中国、印度、印度尼西亚、马来西亚、泰国和越南收集了24份吕根奈瑟菌样本。检测了它们对两种诊断剂量吡虫啉（大约对应于敏感菌株的LC95和5倍LC95）的反应。结果：2005年收集的12份样本中有10份对吡虫啉敏感，但来自印度的两份季末样本在两种诊断剂量下均显示死亡率降低。与易感菌株相比，2006年收集的所有13株菌株在两种剂量下均显示死亡率降低。剂量反应线显示，其中最耐药的田间菌株的耐药性约为敏感标准菌株的100倍。结论：本研究结果表明，亚洲地区褐家蝇对新烟碱类杀虫剂产生抗药性，支持吡虫啉田间药效下降的报道。(c) 2008年化学工业学会
BACKGROUND: Rice brown planthopper, Nilaparvata lugens Stal, is a primary insect pest of cultivated rice, and effective control is essential for economical crop production. Resistance to neonicotinoid insecticides, in particular imidacloprid, has been reported as an increasing constraint in recent years. In order to investigate the extent of resistance, 24 samples of N. lugens were collected from China, India, Indonesia, Malaysia, Thailand and Vietnam during 2005 and 2006. Their responses to two diagnostic doses of imidacloprid (corresponding approximately to the LC95 and 5 x LC95 of a susceptible strain) were examined.RESULTS: Ten of the 12 samples collected during 2005 were found to be susceptible to imidacloprid, but two late-season samples from India showed reduced mortality at both diagnostic doses. All 13 strains collected in 2006 showed reduced mortality at both doses when compared with the susceptible strain. Dose-response lines showed resistance in one of the most resistant field strains to be approximately 100-fold compared with the susceptible standard.CONCLUSION: The data demonstrate the development and spread of neonicotinoid resistance in N. lugens in Asia and support reports of reduced field efficacy of imidacloprid. (c) 2008 Society of Chemical Industry