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Un parasitoïde oophage pour contrôler Paysandisia archon (Burmeister) : le trichogramme

Abstract : Since its introduction in 2001, in Mediterranean region, the palmivore moth Paysandisia archon (Burmeister) continues to progress, resulting in more damages and economic losses. Therefore it is urgent to find a biological method to control this pest, respecting the environment and human health. The egg stage is the most accessible and the previous instar before phytophagous stage so an oophagous parasitoid is searched. Trichogramma, which effectiveness has been proven in biological control on different crops, have been tested. Trichogramma usually reared on the alternative host Ephestia kuehniella (Zeller), are too small to lay on the eggs of P. archon. We have therefore reared them on a new, larger substitution host Philosamia ricini (Drury). We confirmed the increase in the size of Trichogramma (tibia and ovipositor) and the improvment of their fecundity, as soon as the first generation. These wasps have successfully parasitized P. archon eggs.
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  • HAL Id : hal-02749240, version 1
  • PRODINRA : 214745

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Elisabeth Tabone, Maurane Buradino, Etty Colombel, Marion Salignon, Annabel Fourcade, et al.. Un parasitoïde oophage pour contrôler Paysandisia archon (Burmeister) : le trichogramme. 3. AFPP. Conférence sur l'Entretien des Espaces Verts, Jardins, Gazons, Forêts, Zones Aquatiques et Autres Zones Non Agricoles, Oct 2013, Toulouse, France. ⟨hal-02749240⟩

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