A Holling Type II Discrete Switching Host-Parasitoid System with a Nonlinear Threshold Policy for Integrated Pest Management

Figure 3

Phase trajectories of system (4) with different and initial values. (a) . (b) . (c) . (d) . (e) . (f) . The initial values in (a)–(c) are and in (d)–(f) are . The other parameters are fixed as follows: .

(a)

(b)

(c)

(d)

(e)

(f)