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Accueil du site → Master → Italie → Development of strategies for biocontrol of the invasive pest Drosophila suzukii in Italy by means of Hymenopteran parasitoids

Istituto Agronomico Mediterraneo di Bari (IAMB) 2016

Development of strategies for biocontrol of the invasive pest Drosophila suzukii in Italy by means of Hymenopteran parasitoids

Panel, Aurore Danièle Claudine

Titre : Development of strategies for biocontrol of the invasive pest Drosophila suzukii in Italy by means of Hymenopteran parasitoids

Auteur : Panel, Aurore Danièle Claudine

Etablissement de soutenance : Istituto Agronomico Mediterraneo di Bari (IAMB)

Grade : Master of Science : Mediterranean organic agriculture 2016

Résumé
Drosophila suzukii or Spotted Wing Drosophila (SWD) is a pest which has recently spread in western countries. It threatens several profitable fruit crops and is also known to develop on a wide range of natural host plants. Current control methods rely on the application of insecticides but this strategy proves to be poorly effective, polluting and unsustainable. This study, conducted in Italy, investigates the efficacy of endemic and commercially available parasitoids on SWD, under laboratory conditions. It also reports on life-history traits of three species of resident parasitoids of SWD and finally assesses the efficiency of two of them in the field. Two commercially available pupal parasitoids were proved to be unable to develop on the pest whereas Trichopria drosophilae, a resident pupal parasitoid showed a high parasitization rate. Lifetime fecundity experiments gave information on parasitoids reproductive strategies. Field trials successfully showed the parasitoids ability to locate and parasitize the pest. The augmentorium technique, set up in one of the field trials, proved to be partly effective and therefore needs to be further improved. This study contributes to the development of the pest biocontrol strategies which may become an important management tool in the near future for an area-wide control of SWD.

Présentation (IAMB Library)

Page publiée le 22 février 2018, mise à jour le 12 septembre 2018