Comparing sterile male releases and other methods for integrated control of the tiger mosquito in temperate and tropical climates

Douchet Léa, Haramboure Marion, Baldet Thierry, L'Ambert Grégory, Damiens David, Gouagna Louis-Clément, Bouyer Jérémy, Labbe Pierrick, Tran Annelise. 2021. Comparing sterile male releases and other methods for integrated control of the tiger mosquito in temperate and tropical climates. Scientific Reports, 11:7354, 14 p.

Quartile : Q2, Sujet : MULTIDISCIPLINARY SCIENCES

Résumé : The expansion of mosquito species worldwide is creating a powerful network for the spread of arboviruses. In addition to the destruction of breeding sites (prevention) and mass trapping, methods based on the sterile insect technique (SIT), the autodissemination of pyriproxyfen (ADT), and a fusion of elements from both of these known as boosted SIT (BSIT), are being developed to meet the urgent need for effective vector control. However, the comparative potential of these methods has yet to be explored in different environments. This is needed to propose and integrate informed guidelines into sustainable mosquito management plans. We extended a weather-dependent model of Aedes albopictus population dynamics to assess the effectiveness of these different vector control methods, alone or in combination, in a tropical (Reunion island, southwest Indian Ocean) and a temperate (Montpellier area, southern France) climate. Our results confirm the potential efficiency of SIT in temperate climates when performed early in the year (mid-March for northern hemisphere). In such a climate, the timing of the vector control action was the key factor in its success. In tropical climates, the potential of the combination of methods becomes more relevant. BSIT and the combination of ADT with SIT were twice as effective compared to the use of SIT alone.

Mots-clés Agrovoc : Aedes albopictus, lâcher d'insectes stériles, vecteur de maladie, méthode de lutte, lutte intégrée, dynamique des populations, climat tempéré, climat tropical, arbovirus

Mots-clés géographiques Agrovoc : France, La Réunion, Languedoc-Roussillon

Mots-clés complémentaires : pyriproxifène

Mots-clés libres : Modelling, Aedes albopictus, Vector control, Sterile Insect Technique

Classification Agris : S50 - Santé humaine
L73 - Maladies des animaux

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

Agences de financement européennes : European Commission

Programme de financement européen : H2020

Projets sur financement : (EU) Revolutionizing Insect Control

Auteurs et affiliations

• Douchet Léa, INRAE (FRA)
• Haramboure Marion, CIRAD-PERSYST-UPR AIDA (FRA) ORCID: 0000-0002-5738-8216 - auteur correspondant
• Baldet Thierry, CIRAD-BIOS-UMR ASTRE (REU) ORCID: 0000-0003-2979-9517
• L'Ambert Grégory, EID (FRA)
• Damiens David, IRD (FRA)
• Gouagna Louis-Clément, IRD (FRA)
• Bouyer Jérémy, CIRAD-BIOS-UMR ASTRE (REU) ORCID: 0000-0002-1913-416X
• Labbe Pierrick, ISEM (FRA)
• Tran Annelise, CIRAD-ES-UMR TETIS (REU) ORCID: 0000-0001-5463-332X

Source : Cirad-Agritrop (https://agritrop.cirad.fr/598017/)

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