Sensitivity of Culicoides obsoletus (Meigen) (Diptera: Ceratopogonidae) to deltamethrin determined by an adapted WHO standard susceptibility test

Del Rio R., Venail Roger, Calvette C., Barcelo Carlos, Baldet Thierry, Lucientes Javier, Miranda Miguel Angel. 2014. Sensitivity of Culicoides obsoletus (Meigen) (Diptera: Ceratopogonidae) to deltamethrin determined by an adapted WHO standard susceptibility test. Parasitology, 141 (4) : 542-546.

Quartile : Q2, Sujet : PARASITOLOGY

Liste HCERES des revues (en SHS) : oui

Thème(s) HCERES des revues (en SHS) : Psychologie-éthologie-ergonomie

Résumé : Bluetongue is a disease of major economic concern in Europe. Its causative agent, bluetongue virus (BTV), is transmitted by several Culicoides species (mainly Culicoides imicola and Culicoides obsoletus in Europe). The application of insecticides on animals may reduce transmission of BTV, however, no formulation is currently licensed specifically against Culicoides midges. The present study assesses the susceptibility of C. obsoletus to deltamethrin using an adapted World Health Organization (WHO) susceptibility test. Midges were exposed to different dosages of deltamethrin for 1 h, and mortality after 1 h and 24 h was recorded. Results indicated that deltamethrin is highly toxic to C. obsoletus since a dose of 1·33×10?4% was enough to kill 50% of the population (LD50) in 24 h. The deltamethrin concentration needed to kill 90% of the population (LD90) was 5·55×10?4%. The results obtained in the present work could help to create a system that can be used to assess insecticide resistance and susceptibility of Culicoides biting midges.

Mots-clés Agrovoc : Culicoides, deltaméthrine, vecteur de maladie, résistance aux insecticides, efficacité d'utilisation, contrôle de maladies, virus bluetongue, fièvre catarrhale ovine, expérimentation

Mots-clés géographiques Agrovoc : Espagne

Mots-clés complémentaires : Culicoides obseletus

Classification Agris : L72 - Organismes nuisibles des animaux
L73 - Maladies des animaux

Champ stratégique Cirad : Axe 4 (2014-2018) - Santé des animaux et des plantes

Auteurs et affiliations

• Del Rio R., UIB (ESP)
• Venail Roger, EID (FRA)
• Calvette C., CITA [Centro de Investigacion y Tecnologia Agroalimentaria] (ESP)
• Barcelo Carlos, UIB (ESP)
• Baldet Thierry, CIRAD-BIOS-UMR CMAEE (FRA) ORCID: 0000-0003-2979-9517
• Lucientes Javier, Universidad de Zaragoza (ESP)
• Miranda Miguel Angel, UIB (ESP)

Source : Cirad - Agritrop (https://agritrop.cirad.fr/572806/)

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