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A delay differential equation model of mealybugs and green lacewings

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Figure 1 A computer simulation of the system (conditions in Theorem2.1)–(2.2) with a1 = 0.05, a2 = 0.6937, b1 = 0.0596,b2 = 0.0206, α1 = 0.16385, k1 = 15.64, k2 = 12.4113, τ = 2, where M(0) = 0.1 and G(0) = 0.1, for which all 1 are satisfied
Figure 2 A computer simulation of the system (2.1)–(2.2) with a1 = 0.1450, a2 = 0.6937, b1 = 0.0596,b2 = 0.0206, α1 = 0.16385, k1 = 15.64, k2 = 12.4113, τ = 3 < τ0 = 22.5131, where M(0) = 5 and G(0) = 0.1, forwhich all conditions in Theorem 2(b) are satisfi
Figure 3 A computer simulation of the system (2.1)–(2.2) with a1 = 0.1450, a2 = 0.6937, b1 = 0.0596,b2 = 0.0206, α1 = 0.16385, k1 = 15.64, k2 = 12.4113, τ = 22 < τ0 = 22.5131, where M(0) = 5 and G(0) = 0.1, forwhich all conditions in Theorem 2(b) are satis
Figure 4 A computer simulation of the system (2.1)–(2.2) with a1 = 0.1450, a2 = 0.6937, b1 = 0.0596,b2 = 0.0206, α1 = 0.16385, k1 = 15.64, k2 = 12.4113, τ = τ0 = 22.5131, where M(0) = 5 and G(0) = 0.1, for whichall conditions in Theorem 4 are satisfied
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