2011•Chinese Journal of Hygienic Insecticides of EquipmentsRequires access
Resistance of Blattella germanica to four kinds of common used insecticides in Shanghai
Chunzhe Zhang
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Abstract
Objective To know the resistance of Blattella germanica to four kinds of common used insecticides in Shanghai.Methods The surface contact method was used.Results The field population of B.germanica had different resistance to deltamethrin,cypermethrin,propoxur and dichlorovos.The resistance ratios to these tested insecticides were 3.39-16.87,1.41-13.61,0.57-4.39 and 4.44-4.89 respectively.Of which,the resistance of CN population to deltamethrin and cypermethrin was higher.Conclusion The resistance of B.germanica field population to four kinds of insecticides differs greatly,so the cockroach control by chemical method must be selected suitable insecticides.