Some improvement has been made in the method for simulating the dynamics of insectpopulation based on the Ruesink's model(1976),in view of the fact that insect individuals ingeneral don't grow simultaneously from a developmental stage into next one and as the insectindividuals in a developmental stage have grown up to the minimum age class necessary tofinish the stage, they would grow into next developmental stage by following a probabilitydistribution function and then would be carried forward simultaneousl...