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Évaluation des caractéristiques et de l’intérêt agronomique de préparations simples de plantes, pour des productions fruitières, légumières et viticoles économes en intrants Organic Eprints
MARCHAND, Patrice A.; JONIS, Monique; FURET, Arnaud; AVELINE, Nicolas; ISEMBERT, Come; Parveaud, Claude-Eric; Chovelon, Marc; Oste, Sandrine; Gomez, Christelle; Lambion, Jérôme; MOLOT, Bernard; Berthier, C.; Ondet, S.J.; Conseil, Mathieu; Clerc, F; Rey, A.; Navarro, J.F.; Bidault, F.; Maille, E.; Bertrand, C.; Andreu, V.; Treuvey, N.; Pierre, S.P.; Coulon, A.; Chaput, C.; Arufat, A.; Brunet, J.L.; Belzunces, L.; Bonafos, R.; Guillet, B.; Tournant, Ludovic; Larrieu, J.F..
Ce projet 4P « Protection des Plantes Par les Plantes » porte sur la recherche d’alternatives à l’utilisation de pesticides en s’appuyant sur l’évaluation de préparations à base de plantes (infusions, décoctions de prêle, armoise, absinthe et saule) dans un objectif de protection des plantes (bioagresseurs en arboriculture, maraîchage et viticulture). Le 4P se focalise sur l’étude des propriétés fongistatiques ou fongicides, la composition chimique et l’écotoxicité de ces extraits. L’étude des efficacités s’appuie sur des expérimentations de terrain réalisées sur un réseau de parcelles. Ce programme pluridisciplinaire s’inscrit également dans le contexte de la parution du cadre réglementaire pour les Préparations Naturelles Peu Préoccupantes, et l’effort...
Tipo: Journal paper Palavras-chave: Crop health; Quality; Protection.
Ano: 2014 URL: http://orgprints.org/28007/1/Marchand_2014_%2328007_Journal%20Paper.pdf
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Interactions between Nosema microspores and a neonicotinoid weaken honeybees (Apis mellifera) Inra
ALAUX, C.; Brunet, J.L.; Dussaubat, C.; Mondet, F.; Tchamitchian, S.; Cousin, M.; Brillard, J.; Baldy, A.; Belzunces, L.; Le Conte, Y..
Global pollinators, like honeybees, are declining in abundance and diversity, which can adversely affect natural ecosystems and agriculture. Therefore, we tested the current hypotheses describing honeybee losses as a multifactorial syndrome, by investigating integrative effects of an infectious organism and an insecticide on honeybee health. We demonstrated that the interaction between the microsporidia Nosema and a neonicotinoid (imidacloprid) significantly weakened honeybees. In the short term, the combination of both agents caused the highest individual mortality rates and energetic stress. By quantifying the strength of immunity at both the individual and social levels, we showed that neither the haemocyte number nor the phenoloxidase activity of...
Tipo: Journal Article Palavras-chave: ABEILLE DOMESTIQUE; SANTE; MICROSPORIDIE; INSECTICIDE; NEONICOTINOIDE; IMIDACLOPRIDE; SYNERGIE; MORTALITE; STRESS ENERGETIQUE; IMMUNITE INDIVIDUELLE; IMMUNITE DE LA COLONIE; LUTTE INTEGREE HONEYBEE; HEALTH; MICROSPORIDIA; NEONOCOTINOID; IMIDACLOPRID; SYNERGY; MORTALITY; ENERGETIC STRESS; INDIVIDUAL IMMUNITY; SOCIAL IMMUNITY; GLUCOSE OXIDASE; IPM.
Ano: 2010 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2010b2d84f1e&uri=/notices/prodinra1/2010/11/
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Pathological effects of the microsporidium Nosema ceranae on honey bee queen physiology (Apis mellifera) Inra
ALAUX, C.; Folschweiller, M.; McDonnell, C.; Beslay, D.; Cousin, M.; Dussaubat, C.; Brunet, J.L.; Le Conte, Y..
Nosema ceranae, a microsporidian parasite originally described in the Asian honey bee Apis cerana, has recently been found to be cross-infective and to also parasitize the European honey bee Apis mellifera. Since this discovery, many studies have attempted to characterize the impact of this parasite in A. mellifera honey bees. Nosema species can infect all colony members, workers, drones and queens, but the pathological effects of this microsporidium has been mainly investigated in workers, despite the prime importance of the queen, who monopolizes the reproduction and regulates the cohesion of the society via pheromones. We therefore analyzed the impact of N. ceranae on queen physiology. We found that infection by N. ceranae did not affect the fat body...
Tipo: Journal Article Palavras-chave: MICROSPORIDIE; PARASITE; REINE; SANTE; PHYSIOLOGIE; CORPS GRAS; ENERGIE; VITELLOGENINE; FERTILITE; LONGEVITE; ANTIOXIDANT; PHEROMONE MANDIBULAIRE MICROSPORIDIA; QUEEN; HEALTH; PHYSIOLOGY; FAT BODY; ENERGY; VITELLOGENIN; FERTILITY; LONGEVITY; MANDIBULAR PHEROMONE; PHEROMONE; HONEY BEE QUEEN; VITELLOGENIN; QUEEN MANDIBULAR PHEROMONES; ANTIOXIDANT CAPACITY.
Ano: 2011 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD20116cf9b1bf&uri=/notices/prodinra1/2011/04/
Registros recuperados: 3
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