2014年张家港市德国小蠊的抗药性调查

Investigation on the resistance of Blattella germanica to insecticides in Zhangjiagang City in 2014

目的测定张家港市城区德国小蠊对溴氰菊酯、高效氯氰菊酯、乙酰甲胺磷、残杀威、毒死蜱等5种常用杀虫剂的抗药性,根据常用杀虫剂的不同抗药性水平在全市指导开展有效、科学的灭蟑螂工作。方法采用全国蟑螂防治学组制定的《蟑螂抗药性监测方案(试行)》规定的药膜法,测定德国小蠊半数击倒时间。结果张家港市城区蟑螂(德国小蠊)对上述4种杀虫剂的抗性倍数分别为3.63、3.24、0.55、0.88。张家港市城区蟑螂(德国小蠊)对残杀威、乙酰甲胺磷均表现为敏感,对溴氰菊酯、高效氯氰菊酯已产生低度抗药性。结论根据蟑螂的抗药性情况合理选择杀虫剂,以提高蟑螂的防治效果。

Objective To investigate the susceptibility of Blattella germanica to five commonly used insecticides,deltamethrin,beta-cypermethrin,acephate,propoxur and chlorpyrifos in urban area of Zhangjiagang City,and provide scientific basis for proper use of insecticides. Methods Using the residual film method stipulated by'Cockroaches resistance monitoring program ' formulated by the national cockroach control group. Results B. germanica collected from Zhangjiagang,developed 3. 63,3. 24,0. 55 and 0. 88 fold resistance to deltamethrin,beta-cypermethrin,acephate and propoxur. The resistances to deltamethrin and beta-cypermethrin were at low level. Conclusion It is necessary to select the suitable insecticide according to the resistance levels.