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. 2018 Dec;12(6):233-240.
doi: 10.1049/iet-syb.2018.5010.

Biological pest control using a model-based robust feedback

Hector Puebla  1 , Priti Kumar Roy  2 , Alejandra Velasco-Perez  3 , Margarita M Gonzalez-Brambila  4
Affiliations

Biological pest control using a model-based robust feedback

Hector Puebla et al. IET Syst Biol. 2018 Dec.

Abstract

Biological control is the artificial manipulation of natural enemies of a pest for its regulation to densities below a threshold for economic damage. The authors address the biological control of a class of pest population models using a model-based robust feedback approach. The proposed control framework is based on a recursive cascade control scheme exploiting the chained form of pest population models and the use of virtual inputs. The robust feedback is formulated considering the non-linear model uncertainties via a simple and intuitive control design. Numerical results on three pest biological control problems show that the proposed model-based robust feedback can regulate the pest population at the desired reference via the manipulation of a biological control action despite model uncertainties.

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Figures

Fig. 1
Fig. 1
Dynamics of caterpillar x1 (t) (continuous blue line) and parasitoid x2 (t) (dotted green line) populations for the biological control of soybean caterpillar pest
Fig. 2
Fig. 2
Dynamics of the larvae density x1 (t) (continuous blue line), egg density x2 (t) (dashed green line) and eggs parasitised by Trichogramma galloi x3 (t) (dotted red line) for the sugarcane borer pest control problem
Fig. 3
Fig. 3
Dynamics of susceptible (continuous blue line), infected pests (dashed green line) and crop populations (dotted red line) for a biological epidemic pest control problem
Fig. 4
Fig. 4
Recursive cascade control configuration for the class of biological pest control problems
Fig. 5
Fig. 5
Closed‐loop performance for the soybean pest control problem (a) Controlled pest population, (b) Natural enemy population, (c) Release of natural enemies
Fig. 6
Fig. 6
Closed‐loop performance for the sugarcane borer pest control problem (a) Controlled pest population, (b) Natural enemy population, (c) Crop population, (d) Release of natural enemies
Fig. 7
Fig. 7
Closed‐loop performance for the SI‐type pest control problem (a) Controlled pest population, (b) Natural enemy population, (c) Release of natural enemies
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