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利用小菜蛾自然种群连续世代生命表结果 ,通过状态空间方程和作用因子添加分析法 ,模拟增补释放赤眼蜂、菜蛾绒茧蜂和菜蛾啮小蜂对小菜蛾种群的控制作用。结果表明 :在春季 ,单独释放拟澳洲赤眼蜂、小菜蛾啮小蜂以及任何两种或两种以上的寄生性天敌联合释放就可以使下代小菜蛾种群的数量不再增长 ;在秋季 ,只有同时释放寄生作用较强的拟澳洲赤眼蜂和小菜蛾啮小蜂或 3种寄生性天敌同时释放才能完全控制小菜蛾下代种群的增长
Based on the results of the life table of successive generations of the diamondback moth Plutella xylostella, the control effects of Trichogramma pardalis and Plutella xylostella on the diamondback moth (Plutella xylostella) population were simulated through the state space equation and the additive effect analysis method. The results showed that in the spring, the population of the diamondback moth, Plutella xylostella, the diamondback moth, Plutella xylostella, and any two or more parasitic natural enemies could be released separately. In autumn, Only the simultaneous release of parasitic Trichosanthes trichogramma and Plutella xylostella or three kinds of parasitic natural enemies to release at the same time in order to fully control the population growth of diamondback moth progeny