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Khan Hafiz Azhar Ali,Maqsood Sumaira,Mahmood Anas 한국응용곤충학회 2023 Journal of Asia-Pacific Entomology Vol.26 No.2
Management of Musca domestica is desirable globally in order to manage public health issues. However, development of insecticide resistance is one of major hindrances in the management of M. domestica. Here, we explored toxicity of permethrin against larvae of laboratory and field strains of M. domestica, resistance com parison, synergistic effect of enzyme inhibitors on permethrin toxicity, and activities of metabolic enzymes in both strains. In case of the Lab-susceptible strain, LC 50 values of permethrin were 0.14, 0.52 and 0.94 µg g − 1 for first, second and third instars, respectively. In case of the field strain, LC 50 values were 28.09, 66.86 and 112.24 µg g − 1 for first, second and third instars, respectively. First, second and third instars of the field strain exhibited 200.64, 128.58 and 119.40 fold resistance to permethrin when compared with the first, second and third instars of the Lab-susceptible strain, respectively. Toxicity of permethrin in the field strain synergized in the presence of enzyme inhibitors (PBO or DEF). Enzyme analysis revealed significantly higher activities of MFO, CarE and GST in the field strain than those of the Lab-susceptible strain, suggesting metabolic-based mechanism of permethrin resistance. In conclusion, the field strain exhibited resistance to permethrin, which could be managed by adopting alternate measures for the management of M. domestica.
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