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通过对不同时期放蜂的放蜂区和不放蜂的对照区组建松突圆蚧自然种群生命表２４个，并对这些生命表采用相关回归分析，指出影响放蜂区松突圆蚧种群数量变动的关键因子是松突圆蚧花角蚜小蜂的寄生，而在对照区松突圆蚧的被捕食则是影响松突圆蚧种群变动的关键因子。
Twenty-four life tables of natural populations of P. crassiculcus were established by placing bee-keeping and bee-controlling areas in different periods. Correlation analysis was conducted on these life tables, indicating that the population size The key factor of the variation is the parasitism of the M. avenae larvae, while the predation of P. crassipes in the control area is the key factor that affects the population dynamics of P. crassipes.