Population genetics of two fruits flies damaging cucurbits on la Réunion :Bactrocera cucurbitae and Dacus ciliatus

Delatte Hélène, Jacquard Cathy, Simiand Christophe, Deguine Jean-Philippe, Quilici Serge. 2010. Population genetics of two fruits flies damaging cucurbits on la Réunion :Bactrocera cucurbitae and Dacus ciliatus. In : 8th International Symposium on Fruit Flies of Economic Importance (ISFFEI 2010),Valencia, Spain , 26th September - 1st October 2010. s.l. : s.n., 1 p. International Symposium on Fruit Flies of Economic Importance. 8, Valence, Espagne, 26 September 2010/1 October 2010.

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Abstract : #Bactrocera cucurbitae# and #Dacus ciliates# are two fruit fly species damaging cucurbit crops. Of Asiatic origin, #B. cucurbitae# has become an invasive pest in many countries especially on the African continent. Conversely, #D. ciliates#, of African origine, expanded its distribution area during the last years and is now becoming a pest in different Asiatic countries. Both species rank among invasive pests and have been introduced on La Réunion, a French island in the South-Western Indian Ocean, over the last 50 years. They now damage most cucurbits cultivated in the island and cause important yield losses. La Reunion is a subtropical island, with high altitudinal gradient (up to 3000 m) and two seasons (hot and rainy summer, milder and drier winter). Nevertheless, the two species are found in most areas, regardless of season and altitude. However, they show some altitudinal preferences: #B. cucurbitae# is more abundant in the lowlands and #D. ciliates# at medium altitudes. The aim of this work was to characterize the population structure of #B. cucurbitae# and #D. ciliates#, test host races and seasonal or altitude effects. (Résumé d'auteur)

Mots-clés Agrovoc : Dacus, Bactrocera cucurbitae, Cucurbitaceae

Mots-clés géographiques Agrovoc : Réunion

Mots-clés complémentaires : Dacus ciliatus

Classification Agris : H10 - Pests of plants

Auteurs et affiliations

  • Delatte Hélène, CIRAD-BIOS-UMR PVBMT (REU)
  • Jacquard Cathy, Université de la Réunion (REU)
  • Simiand Christophe, CIRAD-BIOS-UMR PVBMT (REU)
  • Deguine Jean-Philippe, CIRAD-BIOS-UMR PVBMT (REU)
  • Quilici Serge, CIRAD-BIOS-UMR PVBMT (REU)

Autres liens de la publication

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