An agent-based model to simulate the boosted Sterile Insect Technique for fruit fly management

Diouf Esther, Brévault Thierry, Ndiaye Saliou, Faye Emile, Chailleux Anaïs, Diatta Paterne, Piou Cyril. 2022. An agent-based model to simulate the boosted Sterile Insect Technique for fruit fly management. Ecological Modelling, 468:109951, 19 p.

https://doi.org/10.1016/j.ecolmodel.2022.109951

Article de revue ; Article de recherche ; Article de revue à facteur d'impact

Version publiée - Anglais
Accès réservé aux personnels Cirad
Utilisation soumise à autorisation de l'auteur ou du Cirad.
PUB731.pdf
Télécharger (2MB) | Demander une copie

Url - jeu de données - Dataverse Cirad : https://doi.org/10.18167/DVN1/5WELPP

Liste HCERES des revues (en SHS) : oui

Thème(s) HCERES des revues (en SHS) : Economie-gestion

Résumé : The sterile insect technique (SIT) is a method of biological control of pests and disease vector insects. It includes mass-rearing and release of sterile males of the target species so that wild females mated with sterile males would not produce offspring. An innovative version of this technique, called boosted SIT, relies on the use of sterile males as vectors of biocides to trigger an epizootic in the wild fruit fly population. We built an agent-based model to assess the feasibility of this technique and main modalities of field implementation for the control of the Oriental fruit fly, Bactrocera dorsalis, using the entomopathogenic fungi, Metarizhium anisopliae, as a biocide. The model, called BOOSTIT (BactrOcera dOrsaliS boosTed sIT), simulates the spatio-temporal population dynamics of fruit flies in three different realistic landscape contexts. The releases of infected and uninfected sterile males were simulated and allowed the transmission of the pathogen within the wild fly population as a result of interactions between individuals. A main output was the measurement of losses in mango production. Validation of the model was done by comparing the simulated population dynamics with data from field monitoring (pheromone traps) in three landscapes of the Niayes area in Senegal. The population dynamics of wild flies were then simulated in an intensive cropping and mono-mango cultivar landscape under three scenarios: (1) without the release of sterile males, (2) with the release of non-contaminated sterile males (SIT) and (3) with the release of sterile contaminated males (boosted SIT). The results showed that SIT and boosted SIT strongly reduced the density of wild flies and the amount of infested fruits. Although parameters of the pathogen transfer between individuals need to be studied more deeply, results encourage the implementation of field trials to validate the efficacy of boosted SIT to control fruit flies.

Mots-clés Agrovoc : lâcher d'insectes stériles, modèle de simulation, modèle à base d'agents, Bactrocera dorsalis, lutte anti-insecte, lutte biologique, lutte biologique contre les ravageurs, insecte nuisible, insecte déprédateur des fruits, lutte antiravageur

Mots-clés libres : Population dynamics, Pattern-oriented modelling, Pest management, Entomovectoring, Bactrocera dorsalis, Metarhizium anisopliae

Classification Agris : H10 - Ravageurs des plantes
U10 - Informatique, mathématiques et statistiques
H01 - Protection des végétaux - Considérations générales

Champ stratégique Cirad : CTS 4 (2019-) - Santé des plantes, des animaux et des écosystèmes

Agences de financement européennes : European Commission

Projets sur financement : (EU) A long term EU-Africa research and innovation partnership on food and nutrition security and sustainable agriculture

Auteurs et affiliations