Analysis and Control of the Singular System Model of Aphid Ecosystems

Abstract EN

Considering the change of the parameter related to the natural enemy population and the impact on the aphid populations in the fold catastrophe manifold, the singular system model of aphid ecosystems is proposed.

Combining singular system theory with catastrophe theory, the corresponding dynamics behaviors and the existence conditions of the impasse points are given by using the qualitative analysis.

The biological significance of the analytical results is also discussed.

The controllers are designed to make the aphid populations stabilize the refuge level by releasing natural enemy.

Some numerical simulations are carried out to prove the results.