Abstract:

Objective The resistance level of nine local strains of Blattella germanica was divided into regions by clustering in Hebei province, providing the basis for regional control of B. germanica. Methods The method of contact with chemical cover was used in this study. The resistance ratios in different populations were categorized by clustering analysis. Results According to the theory of cluster analysis processing, the data of resistance levels were clustered to four categories to 4 groups. The first category is Shijiazhuang and Qinhuangdao strains: low to medium resistance to beta-cypermethrin low resistance to propoxur, high resistance to acephate and permethrin, medium to high resistance to deltamethrin; the second category was Baoding and Handan strains: low to medium resistance to beta-cypermethrin, acephate and deltamethrin, and low resistance to permethrin and propoxur; the third category was Zhangjiakou strain: high resistance to permethrin and acephate, medium resistance to beta-cypermethrin and deltamethrin, low resistance to propoxur; the fourth category was Cangzhou, Xingtai, Chengde, Tangshan strains: medium to high resistance to beta-cypermethrin, low to medium resistance to acephate, high resistance to permethrin: medium resistance to deltamethrin, and low resistance to propoxur. Conclusion Clustering analysis can be satisfactory tool to classify resistance levels in different regions.

Key words: Resistance, Clustering analysis, Blattella germanica

摘要：

目的 运用聚类分析法对河北省9个地方品系德国小蠊的抗药性水平进行区域划分，为德国小蠊分区域防治提供依据。方法 生物测定采用药膜接触法。以抗性倍数为指标利用聚类分析法分析德国小蠊的抗性水平。结果 通过聚类分析，将河北省德国小蠊的抗药性水平分为4类。第1类是石家庄、秦皇岛品系，对高效氯氰菊酯低抗至中抗，对残杀威低抗，对乙酰甲胺磷和氯菊酯高抗，对溴氰菊酯中抗至高抗；第2类是保定、邯郸品系，对高效氯氰菊酯、乙酰甲胺磷和溴氰菊酯低抗至中抗，对氯菊酯、残杀威低抗；第3类是张家口品系，对氯菊酯、乙酰甲胺磷高抗，对高效氯氰菊酯、溴氰菊酯中抗，对残杀威低抗；第4类是沧州、邢台、承德、唐山品系，对高效氯氰菊酯中抗至高抗，对乙酰甲胺磷低抗至中抗，对氯菊酯高抗，对溴氰菊酯中抗，对残杀威低抗。结论 聚类分析法可较好地满足德国小蠊抗药性水平划分要求。

关键词: 抗药性, 聚类分析, 德国小蠊