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Survey on insecticide resistance of Musca domestica to three insecticides in Jilin province

LIU Wei;PENG Bo;GUO Jian-hua;ZHAO Yan;Department of Disinfection and Vector Control and Prevention,Jilin Provincial Center for Disease Control and Prevention;  
Objective To investigate the resistance of musca domestica to three insecticides in different areas of Jilin province for providing reference for scientific application of insecticides. Methods Topical application method was used to test the medium lethal quantity of musca domestica in Changchun,Tonghua and Siping. Results The LD50 values of the field population musca domestica to deltamethrin,beta- cypermethrin and DDVP were 0. 021 1- 0. 068 8,0. 049 8- 0. 224 4and 0. 101 0- 0. 174 8 μg / ♀ respectively in Changchun,Tonghua and Siping city. In comparison with the susceptible strain reported in literature,the resistance ratios of the field population musca domestica to deltamethrin,beta- cypermethrin and DDVP were 6. 59- 20. 88,8. 74- 39. 37 and 0. 54- 0. 93 fold respectively in these three areas. Conclusion The field population Musca domestica in Changchun,Tonghua and Siping city has different degree of resistance to deltamethrin and beta- cypermethrin,It is necessary to use insecticides scientifically,and limit the resistance development of musca domestica to insecticide.
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