Insecticides Resistance In American Cockroach From Urban Lahore
von Ruhma Syed, Farkhanda Manzoor
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The present study was designed to investigate the efficacy of four classes of insecticides: pyrethroids, organophosphates, phenyl-pyrazoles and neo-nicotenoids, which were tested for their LC50 values against three strains of Periplaneta americana (Linnaeus) under topical and contact glass jar methods. Strain 1 was found to be highly resistant while least resistant was strain 3 with very low LC50 values for all insecticides. Imidacloprid 5%SC was highly effective at all concentrations applied for topical and glass jar methods, while DDVP 50% EC was least toxic for both methods. One way ANOVA confirmed significant differences between mortality and concentrations (p > 0.05). This study revealed that locality differentiation is an important factor in determining the range of resistance between various strains, as all three strains behaved differently in terms of their levels of resistance. Among four insecticides tested, imidacloprid 5% SC was highly toxic giving low resistance for all strains, while DDVP 50% EC was proved to be least effective with high resistance levels in all strains used in laboratory bioassays.
Ruhma Syed, Farkhanda Manzoor
Dr. Farkhanda has done MSc.(Zoology),PhD and Post doctorate (Entomology) from Ohio State University, US. She has 45 publications in her record.Ruhma Syed has done MS Zoology from LCWU, Lahore. Her specific areas of research are insecticidal efficacy against termites and american cockroach. She has one international publication in her record.
LAP Lambert Academic Publishing
0.22 x 0.15 x 0.008 m; 0.204 kg