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Academic literature on the topic 'Agents de lutte biologique – Viticulture'
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Journal articles on the topic "Agents de lutte biologique – Viticulture"
Boisclair, Josée, and Bernard Estevez. "Lutter contre les insectes nuisibles en agriculture biologique : intervenir en harmonie face à la complexité." Phytoprotection 87, no. 2 (November 10, 2006): 83–90. http://dx.doi.org/10.7202/013977ar.
Full textMalausa, Jean-Claude. "Les introductions d’insectes exotiques comme agents de lutte biologique contre les ravageurs des cultures." Revue d'Écologie. Supplément 55, no. 7 (2000): 71–84. http://dx.doi.org/10.3406/revec.2000.6293.
Full textGoyer, Renaud, and Corina Borri-Anadon. "Au-delà des déterminismes biologique et classiste dans l’explication des inégalités scolaires." MJE Forum 52, no. 1 (August 14, 2017): 231–36. http://dx.doi.org/10.7202/1040815ar.
Full textDiarra, Mama, Michel Havard, and Mamy Soumaré. "La perception des avantages et des contraintes de l’écimage du cotonnier par les producteurs du Mali." Cahiers Agricultures 29 (2020): 10. http://dx.doi.org/10.1051/cagri/2020007.
Full textMakan Konate, Sanou, Alpha Seydou Yaro, Seydou Simbo Diakite, Fily Dabo, Alassane Dit Assitoun, Josue Poudiougou, Moussa Diallo, Mamadou Ba, and Bernard Sodio. "UTILISATION DES MICROBIOTES NATURELLES DES GITES D AEDES ET DE CULEX POUR L ALIMENTATION DES LARVES D AEDES ET DE CULEX ELEVEES EN CONDITIONS DE LABORATOIRE A BAMAKO, MALI." International Journal of Advanced Research 9, no. 10 (October 31, 2021): 94–95. http://dx.doi.org/10.21474/ijar01/13521.
Full textMouria, Btissam, Amina Ouazzani-Touhami, and Allal Douira. "Effet de diverses souches du Trichoderma sur la croissance d'une culture de tomate en serre et leur aptitude à coloniser les racines et le substrat." Phytoprotection 88, no. 3 (September 25, 2008): 103–10. http://dx.doi.org/10.7202/018955ar.
Full textNyaka, Aurélie Irène Claire Ngobisa, Sine Nsangou Mfiya Zahrah Fadimatou, Camille Ulrich Dzoyem Dzokouo, Sali Bourou, and Aoudou Yaouba. "Effet antifongique de deux extraits de plantes sur les agents pathogènes identifiés sur des fruits de l’anacardier (Anacardium occidentale L.) au Nord Cameroun." International Journal of Biological and Chemical Sciences 15, no. 3 (September 9, 2021): 1121–39. http://dx.doi.org/10.4314/ijbcs.v15i3.21.
Full textMpadi, Nkwe Charles, and Daniel-Bienvenu Mada Bangala. "Utilisation du champignon Pleurotus sajor-caju pour la délignification d’un substrat à base des hampes florales de bananiers (Musa spp.) et la production des carpophores comestibles." International Journal of Biological and Chemical Sciences 13, no. 7 (February 12, 2020): 3164–76. http://dx.doi.org/10.4314/ijbcs.v13i7.16.
Full textHounsou, Saturnin, Christel Vignon Denakpo, Olivier Tonato, Zoulkifl Salou Bachirou, Elie Ayitondji Dannon, and Armelle Sabine Yélignan Hounkpatin. "Dynamique de la population des Sciomyzidae du Sud-Bénin et comparaison de la capacité de prédation des larves de Sepedon (Sepedomyia) nasuta Verbèke, 1950 et celle des larves de Sepedon ruficeps Becker, 1923, deux agents potentiels de biocontrôle de la sc." International Journal of Biological and Chemical Sciences 18, no. 1 (May 9, 2024): 104–15. http://dx.doi.org/10.4314/ijbcs.v18i1.9.
Full textUwandu, M. O., F. A. Ige, A. P. Okwuraiwe, C. K. Onwuamah, and R. A. Audu. "Communication: Implementation of biosafety in infection control: a 10-year review." African Journal of Clinical and Experimental Microbiology 22, no. 2 (April 8, 2021): 290–93. http://dx.doi.org/10.4314/ajcem.v22i2.23.
Full textDissertations / Theses on the topic "Agents de lutte biologique – Viticulture"
Amarouchi, Zakaria. "Impact du réchauffement climatique sur l’interaction vigne/micro-organismes." Electronic Thesis or Diss., Reims, 2022. http://www.theses.fr/2022REIMS055.
Full textThe gray mold caused by Botrytis cinerea has a devastating impact on various economically important crops, including grapevine (Vitis vinifera L.), with annual economic losses exceeding10 to 100 billion dollars worldwide. Currently, pesticides remain the main method used to reduce the incidence of this phytopathogenic fungus. However, in addition to emergence of multidrug resistance, chemicals must be increasingly restricted in order to limit their impact on the environment and human health. Thus, in recent years, biological protection is gaining renewed interest. Therefore, the aim of our project is the development of new biotechnologies allowing the grapevine to better resist pathogenic pressures, through the use of beneficial microorganisms. The rhizosphere is a rich source of microorganisms with strong abilities in the biocontrol of plant diseases. In the present study, isolation of plant beneficial microorganisms was carried out on healthy plants. A total of 42 micro-organisms were isolated from different rhizospheric semi-arid soils collected in vineyards of Meknes in Morocco (Latitude 33.75989, Longitude -5.43909). The in vitro antagonism test of the various isolates towards B. cinerea evealed that among all the isolates tested the strains S3, S4, S5 and S6 showed a positive result. These isolates inhibit the growth of B. cinerea. The four strains were identified by the study of biochemical characters and phylogenetic analysis of 16S rRNA gene sequences. The results of the analyzes showed that the bacterial strains retained were related to the following species, of the Bacillus genus: S3: B. velezensis; S4: B. velezensis; and S5: B. halotollerans. Isolate S6 was classified in the genus Enterobacter and identified as E. cloacae. The antagonism test carried out in planta on vine vitroplants indicates that the four rhizobacteria reduce significantly (59%, 39%, 55%, and 17%, respectively), the symptoms of the disease and reduce damage to photosynthetic activity (PSII) due to attack by B. cinerea. This study revealed that strains of the genus Bacillus and Enterobacter isolated from the rhizosphere of the vine could be used as biological control agents in the protection of the vine
Battiston, Enrico. "Développement d’un outil innovant pour optimiser l'activité biologique des substances actives afin de contrôler des maladies fongiques chez Vitis vinifera L. Unmanned A erial Vehicle (UAV) - based remote sensing to monitor grapevine leaf stripe disease within a vineyard aff ected by esca complex Grapevine trunk diseases: a review of fifteen years of trials for their control with chemicals and biocontrol agents." Thesis, Reims, 2018. http://www.theses.fr/2018REIMS046.
Full textThe research investigates the application of biomimetic calcium phosphate as innovative delivery system for grapevine (Vitis vinifera L.) protection purposes. This smart material was successfully studied in the biomedical field, from the functionalization of biomimetic calcium phosphate with anti-cancer molecules for localized releases, to the development of an innovative toothpaste for oral hygiene. Preliminary assays to implement the control of the grapevine fungal diseases, have revealed promising results. In this framework, the biomimetic inorganic hydroxyapatite was investigated as potential delivery system of bioactive substances allowed in organic agriculture for plant protection.Through a multidisciplinary approach, the study was aimed to evaluate the efficiency of hydroxyapatite in enhancing the biological activity of copper(II) compounds, on the control of relevant common diseases, like downy mildew, and complex fungal diseases, such as the grapevine trunk diseases. This aim is related to further ambitious goals: the significant reduction of the fungicides amounts applied in plant protection and the optimization of the distribution and persistence of the bioactive substances in the plant tissues, including the vascular ones, where harmful pathogens can develop. Overall, the experimental activities allowed: (i) to understand the interaction between delivery system, functional substance and grapevine tissues; (ii) to demonstrate the mechanism on which the higher efficacy of the functional substance is based; (iii) to collect new information on the mechanisms involved in the symptoms expression by studying the plant defense reactions induced by the treatments
Tirilly, Yves. "L'hyperparasitisme du Hansfordia pulvinata envers le Fulvia fulva et les perspectives de lutte intégrée contre la cladosporiose de la tomate." Brest, 1987. http://www.theses.fr/1987BRES2036.
Full textAgbessi, Sonya. "Caractérisation moléculaire et pouvoir antagoniste de souches de S. mélanosporofaciens, agents potentiels de lutte biologique contre des agents phytopathogènes." Sherbrooke : Université de Sherbrooke, 2002.
Find full textPelat, Thibaut. "Obtention et ingénierie d'anticorps recombinants thérapeutiques et/ou prophylactiques dirigés contre les agents du risque biologique provoqué." Montpellier 2, 2009. http://www.theses.fr/2009MON20093.
Full textRecombinant antibodies isolated from non-human primates represent very promising medical countermeasures against bioweapons. The advantages and methodological aspects of this approach have been described. An scFv, neutralizing the lethal toxin of Bacillus anthracis (2LF: KD= 1. 02 nM) and directed against the “lethal factor” subunit was isolated from a phage-displayed immune library, and characterised. Another scFv, 43RCA, neutralizing ricin, was obtained with the same methodology and tested (in particular: KD= 40 pM). This approach may also be used beyond bioweapons, as an scFv directed toward Aspergillus fumigatus was also isolated (MS130i-IIIC3: KD= 0,96 nM). On-line sequence analysis with IMGT tools allowed to show the high degree of similarity between these scFvs and their human counterparts. Antibody fragments were engineered, including an in vitro affinity maturation (KD initial = 3. 4 nM; KD final = 0. 18 nM). Utilizing IMGT standardisation and on-line tools, a “germline humanization” - utilizing FR derived from IgM, encountered by every Human, as opposed to IgG FR - was realized in order to ensure an optimal tolerance for one of our scFvs. A primatized IgG was tested in vivo and showed therapeutic and prophylactic capacities
Agbessi, Sonya. "Caractérisation moléculaire et pouvoir antagoniste de souches de S. mélanosporofaciens, agents potentiels de lutte biologique contre des agents phytopathogènes." Thèse, Université de Sherbrooke, 2002. http://savoirs.usherbrooke.ca/handle/11143/5016.
Full textIsmail, Mohannad Ahmad. "Plasticité de la réponse à l'exposition au froid chez aphidius ervi dans le cadre des processus de stockage utilisés en lutte biologique." Rennes 1, 2011. https://tel.archives-ouvertes.fr/tel-00588289.
Full textCold storage is used to obtain large quantities of natural enemies in biological control programs for inundative releases. The objective of this thesis is to compare different storage treatments, considered as thermal stresses, to evaluate the fitness of the survivors, using as a biological model the parasitoid Aphidius ervi. We evaluated the effects of each tretament on different life history traits such as longevity, fecundity at emergence, lifetime fecundity, mating capacity, sex ratio of offspring, but also on physiological parameters such as the amount of lipids. The main results showed that fluctuating temperature regimes significantly improve survival rates (mainly after four weeks of storage) compared to constant regimes, but parasitoids consume larger amounts of lipids during storage. During long storage (4 weeks), we highlighted for the first time that a combination of fluctuating regime with low temperature at 0°C produced the best emergence rates associated with higher fitness. When mortality rate is negligible after storage, longevity was the first parameter affected. Fecundity did not decreased significantly, whereas the sex ratio of the progeny was male biased. When mortality rate is high, the individuals succeeding to emerge, showed performances as high as the control. These individuals, however, were small in size compared to control. After cold storage, larger individuals were more affected by stress than smaller ones. Furthermore, smaller individuals had a higher egg load at emergence, which was observed for the first time. In parasitoids, it is well known that larger individuals have better fitness, and this may thereby affect the success of biological control
Fruit, Laetitia. "Etude des facteurs d'efficacité d'un agent de lutte biologique (Ulocladium atrum) pour la protection des plaies d'effeuillage sur tomate contre Botrytis cinerea." Lyon 1, 2001. http://www.theses.fr/2001LYO10030.
Full textBesset-Manzoni, Yoann. "Améliorer les principes de sélection de nouveaux agents bactériens de biocontrôle contre la fusariose du blé." Thesis, Lyon, 2018. http://www.theses.fr/2018LYSE1124/document.
Full textTo combat pests of crops (herbivores and pathogens) new pathways have been explored, in particular biological control. Used the nature and its organisms to regulate the populations of pathogens, that is the goal of the biological fight also called biocontrol. Among the organisms commonly found in biocontrol are micro-organisms, be they fungi or bacteria. These microorganisms have very interesting capabilities for farmers and agronomists. Indeed, studies have shown that they are able to interact with plants to allow a better growth and health of it.Then, in this thesis, we were interested in bacteria to find alternative methods of struggle with Fusarium graminearum, a pathogen of cereals responsible for high yield losses, especially thanks to the production of mycotoxins that will make the seeds unfit for human and animal consumption.Through an original approach of keeping noninhibitory strains in vitro for in planta tests, we have been able to show the limitations of in vitro selection. Thanks to the metabolic exploration of a particularly efficient strain, we have also been able to highlight potential new antifungal molecules. Through a model strain, we explored the mechanisms of the establishment of systemic resistance in wheat induced by bacteria. And finally, we have explored the potential of bacterial combinations in wheat protection that seems to represent a real future in the world of biocontrol.The work done is in line with the needs of new resources to limit the use of pesticides, but also in a need to better understand the tripartite interactions between wheat, pathogen and beneficial bacteria
Quaglietti, Bastien. "Impact de la consanguinité et de l’hybridation chez quatre auxiliaires de lutte biologique." Thesis, Université Côte d'Azur (ComUE), 2017. http://www.theses.fr/2017AZUR4048/document.
Full textInbreeding and hybridization are two genetic processes that may have antagonistic effects in biological control agents (BCAs) rearing. Hybridization can minimize the risk of inbreeding depression (decrease in fitness of inbred individuals), and favor the emergence of advantageous phenotypes. Although the mechanisms of inbreeding depression and the consequences of hybridization are well known, very few studies have been carried out in the context of biological control. The actual effects of inbreeding and hybridization on the fitness of BCAs should be assessed to guide the practices of the biocontrol industry. In a public-private collaboration, data were generated on the effects of inbreeding in the four BCAs Allotropa burrelli, Chrysoperla near comanche, Cryptolaemus montrouzieri and Macrolophus pygmaeus. Inbreeding resulted in a 30% decrease in reproductive success in M. pygmaeus. A thorough study of the consequences of intra-specific hybridization was then carried out using four populations of M. pygmaeus. Three genetic groups separated by strong reproductive isolation were identified. Nevertheless, a fitness advantage for individuals from crosses between genetically distant parents has been highlighted within each genetic group. This work brings data usable in the short term by the partner companies. It also helps to create a corpus of data to better evaluate the real importance of genetic effects in BCAs rearing
Books on the topic "Agents de lutte biologique – Viticulture"
Rechcigl, Jack E. Biological and biotechnological control of insect pests. Boca Raton, Fla: Lewis Publishers, 1998.
Find full textRechcigl, Jack E. Biological and biotechnological control of insect pests. Boca Raton, Fla: Lewis Publishers, 1999.
Find full textConference on Natural and Derived Pest Management Agents (1992 Snowbird, Utah). Natural and engineered pest management agents. Edited by Hedin Paul A. 1926-, Menn Julius J, Hollingworth Robert M. 1939-, and American Chemical Society. Division of Agrochemicals. Washington, DC: American Chemical Society, 1994.
Find full textB, Green Maurice, Hedin Paul A. 1926-, American Chemical Society. Division of Pesticide Chemistry., and American Chemical Society Meeting, eds. Natural resistance of plants to pests: Roles of allelochemicals. Washington, DC: American Chemical Society, 1986.
Find full textW, Powell George, and British Columbia. Ministry of Forests. Research Branch., eds. Field guide to the biological control of weeds in British Columbia. Victoria, B.C: Ministry of Forests, Research Program, 1994.
Find full text1951-, Wäckers F. L., Rijn, P. C. J. van 1958-, and Bruin J, eds. Plant-provided food for carnivorous insects: A protective mutualism and its applications. Cambridge, UK: Cambridge University Press, 2005.
Find full textHelyer, Neil. A colour handbook of biological control in plant protection. London: Manson [for] The Royal Horticultural Society, 2003.
Find full textHelyer, Neil. A colour handbook of biological control in plant protection. London: Manson Pub., 2003.
Find full textRechcigl, Jack E., and Nancy A. Rechcigl. Biological and Biotechnological Control of Insect Pests. Taylor & Francis Group, 1999.
Find full textRechcigl, Jack E., and Nancy A. Rechcigl. Biological and Biotechnological Control of Insect Pests. Taylor & Francis Group, 1999.
Find full text