Differential susceptibility of the sexes of the German cockroach, Blattella germanica L., to the lethal effect of carbaryl, with special reference to the estimation of the dosage-mortality curve from individual records

Abstract

The differential susceptibility of the sexes of the German cockroach, Blattella germanica L., to the lethal effect of carbaryl was compared by the method estimating the dosage-mortality curves from the individual records that some test insects die from the application of carbaryl while others survive, and the experimental results showed that the female cockroach was about 2.33 times less susceptible to carbaryl than the male.