Optimal Control of Agricultural Insects with a Stage-Structured Model

Figure 6

Permanence of system (2) to see the effect of the the proportion of killed immature and mature 𝛼 and 𝛽. Other parameters are the same with those in Figure 5. (a) Time-series of the population 𝑥(𝑡). (b) Time-series of the population 𝑦(𝑡).

(a)

(b)