This study systematically discussed theories of stochastic model construction in insect population dynamics. The tool plays an important role as a bridge for plant protectionists to apply mathematical theories and modeling technique in population dynamic simulation. Results from the simulation can not only enlighten plant protectionists to understand ecological laws in deep but also directly instruct practice of integrated pest management. This innovation makes simulation easy to use for plant protectionists. Applications of three different stochastic models in IPM practice were carried out by using experimental data and statistical data.
Results show quite satisfactory effects in forecasting insect population dynamics.