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Rimbaud L, Dallot S, Bruchou C, Thoyer S, Jacquot E, Soubeyrand S, Thébaud G. Improving Management Strategies of Plant Diseases Using Sequential Sensitivity Analyses. PHYTOPATHOLOGY 2019; 109:1184-1197. [PMID: 30844325 DOI: 10.1094/phyto-06-18-0196-r] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Improvement of management strategies of epidemics is often hampered by constraints on experiments at large spatiotemporal scales. A promising approach consists of modeling the biological epidemic process and human interventions, which both impact disease spread. However, few methods enable the simultaneous optimization of the numerous parameters of sophisticated control strategies. To do so, we propose a heuristic approach (i.e., a practical improvement method approximating an optimal solution) based on sequential sensitivity analyses. In addition, we use an economic improvement criterion based on the net present value, accounting for both the cost of the different control measures and the benefit generated by disease suppression. This work is motivated by sharka (caused by Plum pox virus), a vector-borne disease of prunus trees (especially apricot, peach, and plum), the management of which in orchards is mainly based on surveillance and tree removal. We identified the key parameters of a spatiotemporal model simulating sharka spread and control and approximated optimal values for these parameters. The results indicate that the current French management of sharka efficiently controls the disease, but it can be economically improved using alternative strategies that are identified and discussed. The general approach should help policy makers to design sustainable and cost-effective strategies for disease management.
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Affiliation(s)
- Loup Rimbaud
- 1 BGPI, INRA, Montpellier SupAgro, University of Montpellier, CIRAD, TA A-54/K, 34398 Montpellier Cedex 5, France
| | - Sylvie Dallot
- 1 BGPI, INRA, Montpellier SupAgro, University of Montpellier, CIRAD, TA A-54/K, 34398 Montpellier Cedex 5, France
| | | | - Sophie Thoyer
- 3 CEE-M, Montpellier SupAgro, INRA, CNRS, University of Montpellier, Montpellier, France
| | - Emmanuel Jacquot
- 1 BGPI, INRA, Montpellier SupAgro, University of Montpellier, CIRAD, TA A-54/K, 34398 Montpellier Cedex 5, France
| | | | - Gaël Thébaud
- 1 BGPI, INRA, Montpellier SupAgro, University of Montpellier, CIRAD, TA A-54/K, 34398 Montpellier Cedex 5, France
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Savary S, Ficke A, Aubertot JN, Hollier C. Crop losses due to diseases and their implications for global food production losses and food security. Food Secur 2012. [DOI: 10.1007/s12571-012-0200-5] [Citation(s) in RCA: 518] [Impact Index Per Article: 43.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Breukers A, van Asseldonk M, Bremmer J, Beekman V. Understanding growers' decisions to manage invasive pathogens at the farm level. PHYTOPATHOLOGY 2012; 102:609-619. [PMID: 22397409 DOI: 10.1094/phyto-06-11-0178] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Globalization causes plant production systems to be increasingly threatened by invasive pests and pathogens. Much research is devoted to support management of these risks. Yet, the role of growers' perceptions and behavior in risk management has remained insufficiently analyzed. This article aims to fill this gap by addressing risk management of invasive pathogens from a sociopsychological perspective. An analytical framework based on the Theory of Planned Behavior was used to explain growers' decisions on voluntary risk management measures. Survey information from 303 Dutch horticultural growers was statistically analyzed, including regression and cluster analysis. It appeared that growers were generally willing to apply risk management measures, and that poor risk management was mainly due to perceived barriers, such as high costs and doubts regarding efficacy of management measures. The management measures applied varied considerably among growers, depending on production sector and farm-specific circumstances. Growers' risk perception was found to play a role in their risk management, although the causal relation remained unclear. These results underscore the need to apply a holistic perspective to farm level management of invasive pathogen risk, considering the entire package of management measures and accounting for sector- and farm-specific circumstances. Moreover, they demonstrate that invasive pathogen risk management can benefit from a multidisciplinary approach that incorporates growers' perceptions and behavior.
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Affiliation(s)
- Annemarie Breukers
- LEI, part of Wageningen UR, P.O. Box 8130, 6700 EW, Wageningen, The Netherlands.
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Sparks AH, Forbes GA, Hijmans RJ, Garrett KA. A metamodeling framework for extending the application domain of process-based ecological models. Ecosphere 2011. [DOI: 10.1890/es11-00128.1] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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Dehnen-Schmutz K, MacLeod A, Reed P, Mills PR. The role of regulatory mechanisms for control of plant diseases and food security—case studies from potato production in Britain. Food Secur 2010. [DOI: 10.1007/s12571-010-0073-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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