Modeling of The Dispersion of Pheromones in Cultivated Areas in Order to Improve The Effectiveness of Biocontrol Products

il y a 3 jours

Pau, France IMT Mines Alès Temps plein

**Modeling of the dispersion of pheromones in cultivated areas in order to improve the effectiveness of biocontrol products**:

- Réf **ABG-131012**
- Sujet de Thèse
- 14/04/2025
- Autre financement public
- IMT Mines Alès
- Lieu de travail- Pau - Nouvelle Aquitaine - France
- Intitulé du sujet- Modeling of the dispersion of pheromones in cultivated areas in order to improve the effectiveness of biocontrol products
- Champs scientifiques- Génie des procédés
- Chimie
- Ecologie, environnement
- Mots clés- Modeling, mass transfer, biocontrol, pheromones, dispersion in air

**Description du sujet**:
This phD work is part of an ecological approach to crop management. It will draw on the skills developed within the So Ph'air (Solutions for Pheromones Analysis in Air) joint laboratory between M2i Group and IMT Mines Alès (IPREM laboratory, UMR 5254 CNRS, in Pau).
The use of pheromones incorporated in various treatment media (solid diffusion matrices, spray solutions) is a rapidly developing biocontrol solution as an alternative to the use of pesticides. These pheromones are designed for use in cultivated areas to protect crops from insect pests, by inducing sexual confusion in these insects, thereby reducing their reproduction. This biocontrol solution, which does not eradicate the pest from the cultivated area but prevents its population from increasing, is known to be respectful of biodiversity.
Modeling pheromone diffusion and dispersion phenomena in the field is essential in order to estimate the zone of action and persistence over time of pheromones at a concentration sufficient to maintain efficacy while minimizing the dose applied.

**Thesis topic**

The aim of the thesis is to model the dispersion of pheromones in a cultivated area.
To achieve this, the PhD student will draw on known physics equations describing transfer processes to develop a 3D model applicable to the case studied, and on the results of laboratory and on-site tests carried out during a previous thesis.
To this end, he or she may code his or her own algorithms or use multiphysics modeling software used in the laboratory.
This thesis also includes an experimental part, necessary to acquire certain model input parameters (transfer coefficients, partition constant, air velocity, etc.) and to validate the results obtained by the model in the field.

**Prise de fonction**:

- 01/10/2025

**Nature du financement**:

- Autre financement public

**Précisions sur le financement**:

- IMT Mines Alès/ Communauté de communes de Lacq Orthez

**Présentation établissement et labo d'accueil**:

- IMT Mines Alès
- The work will be carried out in IPREM laboratory,UMR 5254, in Pau_

**Site web**:
**Intitulé du doctorat**:

- Doctorat de Génie des Procédés

**Pays d'obtention du doctorat**:

- France

**Etablissement délivrant le doctorat**:

- UNIVERSITE DE PAU ET DES PAYS DE L'ADOUR

**Ecole doctorale**:
- 30/05/2025

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