title: OptiPhy, a technical-economic optimisation model for improving the management of plant protection practices in agriculture: a decision-support tool for controlling the toxicity risks related to pesticides.
abstract: The health, environmental and socio-economic issues related to the massive use of plant protection products are a concern for all the stakeholders involved in the agricultural sector. These stakeholders, including farmers and territorial actors, have expressed a need for decision-support tools for the management of diffuse pollution related to plant protection practices and their impacts. To meet the needs expressed by the public authorities and the territorial actors for such decision-support tools, we have developed a technical-economic model "OptiPhy" for risk mitigation based on indicators of pesticide toxicity risk to applicator health (IRSA) and to the environment (IRTE), under the constraint of suitable economic outcomes. This technical-economic optimisation model is based on linear programming techniques and offers various scenarios to help the different actors in choosing plant protection products, depending on their different levels of constraints and aspirations. The health and environmental risk indicators can be broken down into sub-indicators so that management can be tailored to the context. This model for technical-economic optimisation and management of plant protection practices can analyse scenarios for the reduction of pesticide-related risks by proposing combinations of substitution PPPs, according to criteria of efficiency, economic performance and vulnerability of the natural environment. The results of the scenarios obtained on real ITKs in different cropping systems show that it is possible to reduce the PPP pressure (TFI) and reduce toxicity risks to applicator health (IRSA) and to the environment (IRTE) by up to approximately 50 %.
authors.affiliation: CIHEAM-IAMM: Mediterranean Agronomic Institute of Montpellier, 3191 Route de Mende, 34093, Montpellier, Cedex 5, France. oussama.mghirbi@gmail.com.|University of Paul Valéry Montpellier 3 (UPVM), Route de Mende, 34199, Montpellier, Cedex 5, France. oussama.mghirbi@gmail.com.|UMR GRED Gouvernance, Risque, Environnement, Développement (UPVM/IRD), Institute of Research for Development (IRD) of Montpellier-UMR GRED, BP 64501, 34394, Montpellier, Cedex 5, France. oussama.mghirbi@gmail.com.
authors.forename: Oussama
authors.initials: O
authors.lastname: Mghirbi
authors.affiliation: CIHEAM-IAMM: Mediterranean Agronomic Institute of Montpellier, 3191 Route de Mende, 34093, Montpellier, Cedex 5, France.|UMR GRED Gouvernance, Risque, Environnement, Développement (UPVM/IRD), Institute of Research for Development (IRD) of Montpellier-UMR GRED, BP 64501, 34394, Montpellier, Cedex 5, France.
authors.forename: Philippe
authors.initials: P
authors.lastname: LE Grusse
authors.affiliation: DIATAE, 3191 Route de Mende, 34093, Montpellier, Cedex 5, France.
authors.forename: Jacques
authors.initials: J
authors.lastname: Fabre
authors.affiliation: CIHEAM-IAMM: Mediterranean Agronomic Institute of Montpellier, 3191 Route de Mende, 34093, Montpellier, Cedex 5, France.
authors.forename: Elisabeth
authors.initials: E
authors.lastname: Mandart
authors.affiliation: University of Paul Valéry Montpellier 3 (UPVM), Route de Mende, 34199, Montpellier, Cedex 5, France.|UMR GRED Gouvernance, Risque, Environnement, Développement (UPVM/IRD), Institute of Research for Development (IRD) of Montpellier-UMR GRED, BP 64501, 34394, Montpellier, Cedex 5, France.
authors.forename: Jean-Paul
authors.initials: JP
authors.lastname: Bord
mesh_terms: D000069599:Crop Production / Q000191:economics / Q000379:methods*; D018556:Crops, Agricultural / Q000187:drug effects / Q000254:growth & development*; D003661:Decision Support Techniques; D006801:Humans; D018803:Models, Economic; D008962:Models, Theoretical; D010575:Pesticides / Q000032:analysis / Q000633:toxicity*; D012308:Risk Management / Q000191:economics / Q000379:methods*
chemical_list: D010575:Pesticides
keywords: Diffuse pollution; Indicators; Optimisation; Pesticides; Plant protection practices; Technical-economic model; Toxicity risk