Global ETD Search
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Showing 1 to 15 of 15 for “"Leptinotarsa decemlineata"”.
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Resistance evaluation and management of Colorado potato beetle, Leptinotarsa decemlineata (Say), using novel chemistries
Leptinotarsa decemlineata (Say) is the most important defoliating pest of potato Solanum tuberosum L., in North America and Europe. Management of this pest relies heavily on chemical control and insecticide resistance is a persistent problem. This phenomenon has increased the need for developing …
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Identification of up-regulated genes of the hyphomycete, Beauveria bassiana, during infection of Leptinotarsa decemlineata
… infection of the Colorado potato beetle, L. decemlineata. Two different approaches for the study of B. bassiana gene expression were used: (1) gene expression in an aritficial context of infection, with the culture of the fungus in the presence of its host cuticle as inductor of the …
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Derivation of interspecific Solanum hybrid genotypes with resistance to Colorado potato beetle (Leptinotarsa decemlineata Say)
The anther culture response of diploid Solanum chacoense (chc) - S. phureja (phu) hybrids and the regeneration potential of anther-derived monoploids was evaluated. In vivo evaluation of interspecific hybrids was also performed. Three hybrids were anther cultured to observe the effects of reduced …
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Expression différentielle des protéines de choc thermique en réponse à diverses conditions chez le doryphor de la pomme de terre Leptinotarsa decemlineata
"Le doryphore de la pomme de terre Leptinotarsa decemlineata est un insecte qui attaque les plants de pomme de terre. Ces insectes développent aussi une résistance face aux multitudes d'insecticides utilisés pour les contrôler. Il existe alors un intérêt à développer des méthodes de nouvelle …
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Investigations of the integrated pest management of Colorado potato beetle, Leptinotarsa decemlineata (Say): Host plant preference, development of semiochemical-based strategies, and evaluation of a novel insecticide
… ecology of Colorado potato beetle (CPB), Leptinotarsa decemlineata (Say) (Coleoptera: Chrysomelidae), a major pest of solanaceous crops in the U.S., there has been little use of this knowledge in pest management. To better understand host plant selection by CPB, field and laboratory-choice …
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Caractérisation de microARNs liés à l'adaptation au froid et à la réponse à l'imidaclopride chez le doryphore de la pomme de terre Leptinotarsa decemlineata
"Le doryphore de la pomme de terre Leptinotarsa decemlineata est un insecte qu menace les champs de pommes de terre des agriculteurs. Ceux-ci jouent notamment un rôle important dans la défoliation des plants de pommes de terre et s'adaptent aisément à plusieurs insecticides supportant ainsi la …
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Investigations of Colorado potato beetle [Leptinotarsa decemlineata (Say)] pest management including: sampling strategies for insecticide resistance detection, development of a knowledge-based expert system and the physiology of cold tolerance
… in mortality of Colorado potato beetle, Leptinotarsa decemlineata (Say), in a filter-paper insecticide bioassay was determined in three Virginia potato fields in 1989 and five fields in 1990. Bioassays were performed for each of three different insecticides on Colorado potato beetle …
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Caractérisation des voies de synthèse de petits arns non codants en réponse à divers stress chez le doryphore de la pomme de terre
Le doryphore de la pomme de terre, Leptinotarsa decemlineata (Say), est un insecte ravageur des cultures de pomme de terre. Ce coléoptère a réussi, au fil des deux derniers siècles, à conquérir de nombreuses régions dans le monde. Cet insecte nuisible montre une aptitude à tolérer les températures …
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Expression différentielle des cytochromes P450 et des glutathion S-transférases en réponse au spinosad chez le doryphore de la pomme de terre
Leptinotarsa decemlineata, aussi nommé le doryphore de la pomme de terre, est un insecte ravageur connu pour sa capacité d’endommager des plantes de pomme de terre et de développer des résistances aux insecticides. Une telle résistance envers de nombreux composés est remarquable et des réponses …
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Entre fiabilité et simplicité : quand la commodité des biomarqueurs compromet leur utilisation en physiologie comparée
… (Drosophila melanogaster) et des doryphores (Leptinotarsa decemlineata), ainsi que le muscle squelettique rouge et le foie de l’omble chevalier (Salvelinus alpinus). Pour induire des variations mitochondriales, chaque espèce a été acclimatée à deux températures. L’ensemble des mesures a été …
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Economic injury levels and feeding studies for the potato flea beetle, Epitrix cucumeris (Harris), in Manitoba
… cucumeris (Harris), and Colorado potato beetles, Leptinotarsa decemlineata (Say), were introduced in different multiples of naturally occurring field densities. Colorado potato beetles were introduced only in the early part of the growing season, but potato flea beetles were introduced for the …
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On the molecular pathways supporting the development of structurally coloured cuticle in Hibiscus trionum
… studied by testing the gripping capacity of Leptinotarsa decemlineata on replicas of the structurally coloured cuticle of Paeonia mascula petals. Wettability was also investigated by measuring the contact angle of water droplets on similar replicas. Together, these results demonstrate that …
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Protoplast Fusion for the Production of Intermonoploid Somatic Hybrids in Cultivated Potato
… to feeding by the Colorado potato beetle (Leptinotarsa decemlineata Say) when present in sufficient concentrations. The somatic hybrids produced moderate levels of ALD in leaves and stems (roughly 60% that of a high ALD-producing S. chacoense clone). Pollinations of SH1, SH2 and SH2B by …
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Molecular biology of the entomopathogenic fungus Beauveria bassiana : insect-cuticle degrading enzymes and development of a new selection marker for fungal transformation
… pathogenic for the Colorado potato beetle, Leptinotarsa decemlineata. Because of both the strong evidence supporting the role of cuticle-degrading proteases (PR1 and PR2) as well as phospholipase B (PLB) in fungal pathogens and their correlations to virulence observed in either M. anisopliae …
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Cistatinas de cebada: proteínas de defensa contra artrópodos
… se han seleccionado: el escarabajo de la patata, Leptinotarsa decemlineata (Say) y su depredador natural, Podisus maculiventris (Say), la crisomela del maíz, Diabrotica virgifera (LeConte), el ácaro, Tetranychus urticae Koch y dos pulgones, Myzus persicae (Sulzer) y Acyrthosiphon pisum (Harris). …