caa a22 4500 606161503 CHVBK 20210128100635.0 cr unu---uuuuu 210128e20151201xx s 000 0 eng 10.1007/s10526-015-9684-1 doi (NATIONALLICENCE)springer-10.1007/s10526-015-9684-1 Improving the efficiency of Trichogramma achaeae to control Tuta absoluta [Elektronische Daten] [Pasquale Cascone, Simona Carpenito, Stine Slotsbo, Luigi Iodice, Jesper Sørensen, Martin Holmstrup, Emilio Guerrieri] Tuta absoluta Meyrick (Lepidoptera: Gelechiidae), commonly known as the tomato borer, is native to South America and has rapidly spread in various European countries becoming one of the major threats of tomato crop. The parasitic wasp Trichogramma achaeae Nagaraja and Nagarkatti (Hymenoptera: Trichogrammatidae) has been suggested as a possible biological control agent of the invasive pest and several aspects of its taxonomy have been elucidated. As for other egg parasitoids, the parasitism rate of this species is influenced by the rearing host and by the biotic environment, especially temperature. Starting from commercially available material, we assessed the influence of different rearing host eggs on T. achaeae longevity and fertility. We found that a single generation of the parasitoid on Tuta absoluta eggs laid on tomato leaf significantly improved T. achaeae attack rate against the tomato borer. Moreover, we found a positive effect between temperatures during development (acclimation) and the fertility of the parasitoid at different temperatures. This was particularly evident at 15°C which was optimal for parasitoid fertility at low temperatures. We conclude that the combination of rearing system (plant+host egg) and temperatures (during development and use) are crucial factors for optimizing efficiency in terms of longevity and fertility of this species as a biocontrol agent of the tomato borer. International Organization for Biological Control (IOBC), 2015 Tomato borer nationallicence Rearing history nationallicence Ephestia kuehniella nationallicence Sitotroga cerealella nationallicence Temperature conditioning nationallicence Cascone Pasquale Institute for Sustainable Plant Protection, National Research Council, Portici, NA, Italy aut Carpenito Simona Institute for Sustainable Plant Protection, National Research Council, Portici, NA, Italy aut Slotsbo Stine Department of Bioscience, Aarhus University, Ny Munkegade 116, 8000, Århus, Denmark aut Iodice Luigi Institute for Sustainable Plant Protection, National Research Council, Portici, NA, Italy aut Sørensen Jesper Department of Bioscience, Aarhus University, Ny Munkegade 116, 8000, Århus, Denmark aut Holmstrup Martin Department of Bioscience, Aarhus University, Vejlsøvej 25, 8600, Silkeborg, Denmark aut Guerrieri Emilio Institute for Sustainable Plant Protection, National Research Council, Portici, NA, Italy aut BioControl Springer Netherlands 60/6(2015-12-01), 761-771 1386-6141 60:6<761 2015 60 10526 https://doi.org/10.1007/s10526-015-9684-1 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10526-015-9684-1 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Cascone Pasquale Institute for Sustainable Plant Protection, National Research Council, Portici, NA, Italy aut NATIONALLICENCE 700 1- Carpenito Simona Institute for Sustainable Plant Protection, National Research Council, Portici, NA, Italy aut NATIONALLICENCE 700 1- Slotsbo Stine Department of Bioscience, Aarhus University, Ny Munkegade 116, 8000, Århus, Denmark aut NATIONALLICENCE 700 1- Iodice Luigi Institute for Sustainable Plant Protection, National Research Council, Portici, NA, Italy aut NATIONALLICENCE 700 1- Sørensen Jesper Department of Bioscience, Aarhus University, Ny Munkegade 116, 8000, Århus, Denmark aut NATIONALLICENCE 700 1- Holmstrup Martin Department of Bioscience, Aarhus University, Vejlsøvej 25, 8600, Silkeborg, Denmark aut NATIONALLICENCE 700 1- Guerrieri Emilio Institute for Sustainable Plant Protection, National Research Council, Portici, NA, Italy aut NATIONALLICENCE 773 0- BioControl Springer Netherlands 60/6(2015-12-01), 761-771 1386-6141 60:6<761 2015 60 10526