摘要
根据斜纹夜蛾生物生态学及其杆状病毒病流行的一般规律，建立了斜纹夜蛾杆状病毒流行病的微分方程模拟模型，模拟系统由１８个微分方程组成，可以模拟易感的和染病的１～６龄幼虫、蛹、成虫，卵的种群动态．模拟模型包含４个分室，即易感种群过程，染病种群过程，病毒在作物上的积累过程，易感种群和染病种群的相互转化过程．系统中纳入了作物生长对病毒数量的稀释效应，以及病毒数量的自然衰减作用．模型参数须由试验测定得到．
According to the general principles of insect population ecology and insect virus disease, the simulation model for epizootic disease of Spodoptera litura F. baculovirus was developed. The model was made up of 18 differential equations, and can simulate the population dynamics of non infected and infected S.litura including lst-6th instar larva, pupa, adult, and egg. The model included 4 compartments, i.e., non-infected population dynamics, infected population dynamics, cumulative dynamics of virus on the leaves, and transformation between non-infected and infected population.The dilution of crop growth on virus population, and natural decay of virus in the field were also included in the model. The values of the model parameters for nuclear polyhedrosis virus disease of S litura were tested and given.
出处
《中山大学学报（自然科学版）》
CAS
CSCD
北大核心
1997年第1期54-59,共6页
Acta Scientiarum Naturalium Universitatis Sunyatseni
基金
广东省自然科学基金
