北京和湖南烟粉虱生物型及其抗药性监测
Biotype and resistance status of whitefly Bemisia tabaci in Beijing and Hunan areas
王少丽 张友军** 李如美 吴青君 徐宝云
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作者单位：中国农业科学院蔬菜花卉研究所 北京 100081
中文关键词：北京，湖南，烟粉虱，生物型，抗药性
英文关键词：Beijing, Hunan, Bemisia tabaci, biotype, insecticide resistance
中文摘要： 烟粉虱是蔬菜等园艺作物上为害严重、最难以防治的害虫之一，生产上防治该虫主要还是依靠化学药剂。本研究鉴定了北京、湖南地区设施蔬菜上烟粉虱的生物型，并监测了其对6种不同杀虫剂的抗药性。结果表明，北京、湖南地区蔬菜烟粉虱生物型分别是Q型和B型。两地烟粉虱对阿维菌素尚处于敏感状态；对烯啶虫胺及其他烟碱类杀虫剂噻虫嗪和吡虫啉的抗药性达中抗到高抗水平，湖南地区抗性水平比北京地区更高，抗性倍数最高达到71.58倍；传统杀虫剂毒死蜱和联苯菊酯对湖南、北京两地烟粉虱的毒杀活性差。
英文摘要： The whitefly Bemisia tabaci(Gennadius) is one of the most important and difficult to control insect pests of vegetables and ornamental crops. Insecticides are still the most common control method for these pests. The resistance of different B. tabaci biotypes from Beijing and Hunan to 6 insecticides was investigated. The results showed that B. tabaci from these regions were of the Q and B biotypes. Insects from both areas were still susceptible to abamectin but had moderate to high resistance to nitenpyram and other neonicotinoid insecticides, including thiamethoxam and imidacloprid. The degree of resistance was much higher in Hunan than in Beijing, with the highest recorded resistance being 71.58-fold. Traditional insecticides including chlorpyrifos and bifenthrin showed low toxicity activity for B. tabaci adults.