北京地区西花蓟马田间种群的抗药性监测
Monitoring the insecticide resistance of the field populations of western flower thrips, Frankliniella occidentalis in Beijing area
王泽华1，2,侯文杰1,郝晨彦1,吴青君1**,徐宝云1,张友军1 徐宝云等
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作者单位：1中国农业科学院蔬菜花卉研究所北京100081；2北京市农林科学院植保环保所北京100097
中文关键词：西花蓟马，抗药性，监测
英文关键词：Frankliniella occidentalis, insecticide resistance, monitoring
中文摘要： 采用叶管药膜法在室内测定了2009—2010年北京海淀地区和昌平地区西花蓟马Frankliniella occidentalis（Pergande）田间种群对12种杀虫剂敏感性的年度变化。结果表明，北京昌平和海淀地区的西花蓟马对多数的药剂仍处于敏感状态，但对氯氟氰菊酯已产生近40倍的抗性，昌平种群对多杀菌素具有产生低水平抗性的趋势（抗性倍数为4倍）。推荐药剂包括多杀菌素、阿维菌素、甲氨基阿维菌素苯甲酸盐（甲维盐）、毒死蜱和溴虫腈，应注意与其它药剂的轮换使用，灭多威对西花蓟马的毒力水平最低，不推荐使用。
英文摘要： The susceptibility of Frankliniella occidentalis（Pergande）to 13 insecticides was evaluated in two Beijing districts, Haidian and Changping, in 2009 and 2010 using a modified TIBS method.The most toxic insecticides were spinosad and emamectin benzoate.The next most toxic were the pyrethroid insecticide cyhalothrin and the phenyl-pyrazole insecticide fipronil.Methomyl and omethoate were the least toxic.In 2009, western flower thrips populations in Haidian and Changping districts were relatively sensitive to the most of the insecticides tested (resistance ratio <3).The Haidian population had decreased susceptibility to chlorfenapyr and deltamethrin (resistance ratios of 4.6 and 4.13).The Changping population had decreased susceptibility to chlorfenapyr, deltamethrin and emamectin benzoate (resistance ratios of 4.61, 4.13 and 3.30 respectively).By 2010, the Haidian population had developed moderate levels of resistance to cyhalothrin (resistance ratio of 39.67), and had decreased susceptibility to deltamethrin (resistance ratio of 4.55), but was still sensitive to the other insecticides (resistance ratios <3).By 2010 the population of Changping developed low levels of resistance to indoxacarb, deltamethrin, methomyl and imidacloprid (resistance ratios of 6.50, 5.79, 5.46 and 9.55 respectively).It also had decreased susceptibility to emamectin benzoate and cypermethrin (resistance ratio of 4.55), but was still sensitive to esfenvalerate and chlorfenapyr (resistance ratio <3).