北京和云南地区西花蓟马对多杀菌素类药剂产生抗药性
Development of resistance to spinosyns in populations of westernflower thrips in Beijing and Yunnan
万岩然1** 何秉青2 苑广迪2 魏国树1*** 吴青君2***
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DOI：10.7679/j.issn.2095-1353.2016.052
作者单位：1. 河北农业大学植物保护学院，保定 071000；2. 中国农业科学院蔬菜花卉研究所，北京 100081
中文关键词：西花蓟马，多杀菌素类药剂，抗药性，抗药性监测
英文关键词：Frankliniella occidentalis, spinosyns, insecticide resistance, resistance monitoring
中文摘要：
【目的】 了解我国西花蓟马Frankliniella occidentalis（Pergande）对多杀菌素等药剂的抗药性现状，为西花蓟马的有效防治提供参考。【方法】 2011—2015年，采用叶管药膜法对北京和云南地区西花蓟马进行了抗药性监测。【结果】 与室内敏感品系相比，北京地区西花蓟马田间种群对多杀菌素的抗性倍数达到80~150倍，对乙基多杀菌素抗性倍数高达7 730倍，对乙基多杀菌素的LC50值5年间最高增加了258倍，对甲维盐和噻虫嗪具有中等水平抗性，对阿维菌素和虫螨腈处于敏感或低水平抗性；昆明地区西花蓟马对乙基多杀菌素的抗性水平达到305倍的极高抗水平，对其它药剂相对敏感或处于低水平抗性。【结论】 北京和云南地区西花蓟马对多杀菌素类药剂已经产生高水平抗药性，应密切关注抗性发展动态，同时进一步研究其抗性机制。
英文摘要：
[Objectives] To clarify the status of insecticide resistance in western flower thrips (WFT) in China and to provide baseline data to improve the control of these pests. [Methods] The resistance of WFT to several insecticides, including spinosyns, was evaluated in Beijing and Yunnan from 2011 to 2015 using the leaf tube residue method. [Results] Populations of WFT in parts of Beijing had developed 80- to 150-fold resistance to spinosad compared to a susceptible strain. The resistance ratio to spinetoram was as high as 7 730-fold and the LC50 value to spinetoram had increased by a maximum of 258 times the initial value over the last five years. Resistance to emamectin benzoate and thiamethoxam was moderate，and thrips had either low resistance, or were susceptible, to chlorfenapyr and abamectin. Populations of WFT in Kunming, Yunnan Province had developed 305-fold resistance to spinetoram, but were either susceptible, or had low level resistance, to other insecticides. [Conclusion] Populations of western flower thrips in Beijing and Yunnan have developed high levels of resistance to spinosyns. This trend should be followed closely and the mechanism underlying resistance to spinosyns further investigated.