THE RELATIONSHIP BETWEEN Aphis craccivora POPULATION DYNAMICS AND Vicia faba PHYSIOLOGICAL STRESS
蚕豆蚜种群动态与蚕豆生理变化的关系

The Experiments were carried out to study the relationship dynamics of Aphis craccivora population and Vicia faba between physiological stress on the basis of plant-insect experimental system. It is found that V. faba's physiological stress can affect A. craccivora population's reproduction rate, survival rate and other population characteristics to regulate aphid population dynamics. Vicia faba can transmit and emplify the aphid's message which regulats the insect population density. The adaptive process of A. craccivora population, including reducing population size (lower reproduction rate and migration) lessens the physiological pressure to plant, so as to mentain the development of plantinsect intersperses system. In this paper, the computer simulation modle is Set up by couping the physiological stress process of plant and population dynamics of insect, and the development trend of interspecies relationship was also disscu-ssed.