Chapwanya Michael, Matusse Americo, Dumont Yves. 2021. On synergistic co-infection in crop diseases. The case of the Maize Lethal Necrosis Disease. Applied Mathematical Modelling, 90 : 912-942.
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Quartile : Q1, Sujet : ENGINEERING, MULTIDISCIPLINARY / Quartile : Q1, Sujet : MATHEMATICS, INTERDISCIPLINARY APPLICATIONS / Quartile : Q1, Sujet : MECHANICS
Résumé : Crops are often subject to intense attacks by pests and diseases. Among them, Maize Lethal Necrosis (MLN) is a serious disease that impact maize crops in many Southern countries. It results from the synergistic interaction of two plant viruses, transmitted by two vectors. In this paper, we develop a general deterministic epidemic model of crop-vector-borne disease for synergistic co-infection, with a particular focus on MLN disease. A theoretical analysis shows that different thresholds exists that drive the dynamics of the system: the well known basic reproduction numbers and also invasion reproduction numbers. The latter are essential for the emergence or not of the MLN disease. After a global sensitivity analysis, we illustrate our results through numerical simulations and discuss potential control methods such as vector control and roguing.
Mots-clés Agrovoc : Zea mays, nécrose, maladie des plantes, infection, synergisme, transmission des maladies, modélisation des cultures, modèle mathématique, analyse qualitative, analyse globale
Mots-clés complémentaires : nécrose létale du maïs
Mots-clés libres : Co-infection, Synergistic effect, Mathematical modelling, Basic reproduction number, Invasion reproduction number, Qualitative analysis, Maize Lethal Necrosis, Global sensitivity analysis, Numerical simulations
Classification Agris : H20 - Maladies des plantes
U10 - Informatique, mathématiques et statistiques
Champ stratégique Cirad : CTS 4 (2019-) - Santé des plantes, des animaux et des écosystèmes
Auteurs et affiliations
- Chapwanya Michael, University of Pretoria (ZAF)
- Matusse Americo, University of Pretoria (ZAF)
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Dumont Yves, CIRAD-BIOS-UMR AMAP (REU)
ORCID: 0000-0003-4817-685X
Source : Cirad-Agritrop (https://agritrop.cirad.fr/596779/)
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