Abstract
Based on a logistic model of population growth and Poisson-binomial model for frequency distribution of matings between sterile and normal insects, a simple model was presented to simulate population processes under mass-relases of sterile melon flies. Constants used in the model were determined according to the results of population studies made in Kume Is., Okinawa. It was suggested that, under the conditions assumed here, a 2 : 1 ratio of mature sterile males and normal males in an isolated target area was enough to result in eradication of the melon fly within one year.
