山东省德国小蠊对5种杀虫剂的抗药性调查研究

Resistance of Blattella germanica to five kinds of insecticides in Shandong Province

目的了解山东省德国小蠊对常用杀虫剂的抗药性现状,指导科学、合理选择和使用杀虫剂。方法药膜接触法。结果山东省7个地区德国小蠊野外品系对氯氰菊酯、溴氰菊酯、高效氯氰菊酯、乙酰甲胺磷和残杀威的抗性系数分别为3.57～37.99、2.11～28.49、1.83～8.42、1.31～7.44、0.84～1.87。其中济南、淄博、德州和曲阜野外品系对溴氰菊酯抗性水平较高,济南、淄博和东营野外品系对氯氰菊酯抗性水平较高。结论山东省部分地区德国小蠊对5种常用杀虫剂均产生了不同程度的抗药性,其中对氯氰菊酯和溴氰菊酯的抗性水平最高;对高效氯氰菊酯和乙酰甲胺磷的抗药性处于中、低度水平,对残杀威为低度抗性。

Objective To study the resistance of Blattella germanica to common used insecticides in Shandong Province, and provide evidence for using insecticides scientifically and reasonably. Methods Residual film meth- od. Results The resistance ratios of seven field-collected strains to cypermethrin, deltamethrin, beta-cyper- methrin,acephate and propoxur were 3.57 - 37.99, 2.11 - 28.49, 1.83 - 8.42, 1.37 - 7.44 and 0.84 - 1.87 re- spectively. The resistance ratios of deltamethrin were high in Jinan, Zibo, Dezhou and Qufu for field-collected strains. The resistance also reached the high level to cypermethrin in Jinan, Zibo and Dongying for three field-coUected strains. Conclusion Currently, different resistance levels to common insecticides have been developed in seven geographic populations of BlatteUa germanica within Shandong Province. Among the five commonly used insecticides, the resistance levels to cypermethrin and deltamethrin are the highest, followed by beta-cypermethrin and acephate, and the resistance levels to propoxur are low.