Christina Edholm
Management of Invasive Insect Species using Optimal Control Theory
Edholm, Christina; Tenhumberg, Brigitte; Guiver, Christopher; Jin, Yu; Townley, Stuart; Rebarber, Richard
Authors
Brigitte Tenhumberg
Dr Chris Guiver C.Guiver@napier.ac.uk
Lecturer
Yu Jin
Stuart Townley
Richard Rebarber
Abstract
We discuss the use of optimal control theory to determine the most cost-effective management strategies for insect pests. We use a stage-structured linear population projection model where the modeled control action increases the mortality in one of the stage-classes. We illustrate the method by using a published model for the root weevil Diaprepes abbreviatus, an invasive insect species having a substantial negative impact on citrus trees in regions such as Florida and California in the United States. Here control corresponds to the application of inundative biological control agents (entomopathogenic nematodes as biopesticides) which increases the mortality of the larval stage. Our approach determines levels and timing of control to minimize the economic loss caused by D. abbreviatus. We use two numerical methods to approximate the optimal control, and compare their effectiveness.
Journal Article Type | Article |
---|---|
Acceptance Date | Apr 19, 2018 |
Online Publication Date | May 9, 2018 |
Publication Date | 2018-08 |
Deposit Date | Jul 23, 2020 |
Journal | Ecological Modelling |
Print ISSN | 0304-3800 |
Publisher | Elsevier |
Peer Reviewed | Peer Reviewed |
Volume | 381 |
Pages | 36-45 |
DOI | https://doi.org/10.1016/j.ecolmodel.2018.04.011 |
Keywords | Diaprepes abbreviatus, Discrete-time system, Invasive species, Optimal control, Population management |
Public URL | http://researchrepository.napier.ac.uk/Output/2677285 |
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