Caracterização da resistência de Blattella germanica (L.) (Dictyoptera: Blattellidae) a Deltametrina e clorpirifós e relações de resistência cruzada com fipronil
Abstract:-The objectives of this study were to characterize the resistance of Blattella germanica (L.) to deltamethrin and chlorpyrifos and to evaluate their cross-resistance relationships to fipronil. The isolation of resistance was done under laboratory conditions from field-collected populations. Three cycles of selection pressure with deltamethrin and chlorpyrifos were conducted to obtain the Deltamethrin-R and Chlorpyrifos-R strains. The estimated LD 50 for the susceptible (SUS) strain was 0.24 (IC 95% 0.18 -0.31)… Show more
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