Modelling the effect of the sterile insect technique, alone or combined with insecticide auto-dissemination, on Aedes albopictus

Haramboure Marion, Labbé Patrick, Tran Annelise, Baldet Thierry, Bouyer Jérémy. 2018. Modelling the effect of the sterile insect technique, alone or combined with insecticide auto-dissemination, on Aedes albopictus. In : 21st E-SOVE (European Society for Vector Ecology) Meeting Abstract Book. Arthropod Vector Science for the benefit of society: Educate, Empathize, Engage. ESOVE. Palermo : ESOVE, Résumé, 146. E-SOVE (European Society for Vector Ecology) Meeting. 21, Palermo, Italie, 22 Octobre 2018/26 Octobre 2018.

Url - autre : https://www.aedescost.eu/sites/default/files/2019-07/Scientific%20Programme%20-%20Palermo%2C%20Italy%20%E2%80%93%2021-26%20October%202018.pdf

Résumé : The Sterile Insect Technique (SIT) is a demographic control procedure consisting in re-leasing males sterilized by ionizing radiations. A workaround technique, named boost-ed SIT, aims at contaminating the sterilized males with pyriproxyfen; the males would then transfer this insecticide to other compartments of the target population (females, breeding sites) through auto-dissemination. To anticipate the effect of SIT and boosted SIT on mosquito populations, they were included into an age-structured population model of Aedes albopictus in the geographical context of La Reunion Island. A sensitiv-ity analysis shows that timing and duration of the male release events, as well as the quantity of sterile males released, are of key importance for both control methods. The persistence of pyriproxyfen in larval habitat appears to be the major determinant for boosted SIT to be more efficient than SIT. While the model appears a powerful tool to investigate release strategies, our findings specifically call for lab experiments towards a better assessment of pyriproxyfen transfer rates and persistence in breeding sites.

Auteurs et affiliations

• Haramboure Marion, CIRAD-BIOS-UMR ASTRE (REU) ORCID: 0000-0002-5738-8216
• Labbé Patrick, INRA (FRA)
• Tran Annelise, CIRAD-BIOS-UMR ASTRE (REU) ORCID: 0000-0001-5463-332X
• Baldet Thierry, CIRAD-BIOS-UMR ASTRE (FRA) ORCID: 0000-0003-2979-9517
• Bouyer Jérémy, CIRAD-BIOS-UMR ASTRE (AUT) ORCID: 0000-0002-1913-416X

Source : Cirad-Agritrop (https://agritrop.cirad.fr/589977/)

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