Academic literature on the topic 'Puceron du pois – Lutte contre'
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Journal articles on the topic "Puceron du pois – Lutte contre":
COULIBALY, Klotioloma, Inza Jésus FOFANA, Gogbé Françoise DIBI, Tchéféri Lacina SORO, Kouamé Norbert N’DRI, Brigitte Sahin GUIRAUD, Walet Pierre N’GUESSAN, et al. "Incidence de la pourriture noire des cabosses du cacaoyer (Theobroma cacao L.) et caractérisation de Botryodiplodia theobromae, agent causal en Côte d’Ivoire." Journal of Applied Biosciences 184 (April 30, 2023): 19349–64. http://dx.doi.org/10.35759/jabs.184.8.
Dissertations / Theses on the topic "Puceron du pois – Lutte contre":
Ligonnière, Sébastien. "Utilisation de la technique d’interférence ARN dirigée contre les acteurs du système cholinergique pour lutter contre les insectes ravageurs." Electronic Thesis or Diss., Angers, 2023. https://dune.univ-angers.fr/documents/dune17729.
Increasing agricultural yields to meet growing food needs is still based on the use of insecticide treatments to protect crops against insect pests. However, the widespread use of insecticides has led to negative effects on non-target organisms. In addition, the increase of the number of accommodated or resistant insects to insecticides has led to an overall reduction in their effectiveness. Therefore, it has become essential to develop new insect pest control strategies. Among them, RNA interference (RNAi) is emerging as a powerful tool for specifically controlling insect pests. The aim of this work was to assess the use of RNAi that targets proteins involved in the cholinergic system to control insect crop pests. In this work, we demonstrated that the use of an interfering RNA targeting the divergent nicotinic acetylcholine receptor subunit Apisumβ2 of the aphid Acyrthosiphon pisum, alone or combined with imidacloprid, can control populations of this pest at different developmental stages. In addition, preliminary results suggest that targeting aphid acetylcholinesterase with RNAi could also be a viable strategy to control this pest. Finally, we have demonstrated, in the imidacloprid-accommodated cockroach Periplaneta americana, that the use of an interfering RNA targeting Pameβ1 subunit enabled the return of these insects to a sensitive phenotype. Altogether, these results suggest that the use of RNAi that targets the cholinergic system could be an important strategy to control insect pests
Martoub, Maria. "Impact global de l’huile minérale blanche sur le pathosystème plante-puceron-virus : vers de nouvelles perspectives de lutte contre les virus non persistants." Amiens, 2010. http://www.theses.fr/2010AMIE0121.
Mineral oil weekly spray has been shown to efficiently reduce non persistent PVY transmission in the field. To date, its mode of action is poorly understood. In this project we assessed mineral oil effect on each partner of the plant – aphid – virus system. We showed that potato plant treatment prior to viruliferous aphid infestation, led to significantly reduced virus YNTN transmission. Besides, it affects M. Euphorbiae behaviour and physiology. Indeed, we characterized negative effects on adult orientation and nymphal survival. Other probiotic effects characterized were: enhanced longevity and reproduction of surviving adults, and some parameters related to feeding behaviour as well. Surprisingly, we demonstrated that direct aphid exposure to mineral oil is sufficient to trigger similar aphicid and probiotic effects. Eventually, we show that plant treatment triggers cellular events similar to pathogen perception and signalling response. Our results highlight the high-potential use of mineral oil as alternative method in virus transmission control, for its efficacy and environment friendly use as well
Lopes, Christelle. "Dynamique d’un système hôte-parasitoïde en environnement spatialement hétérogène et lutte biologique : application au puceron Aphis gossypii et au parasitoïde Lysiphlebus testaceipes en serre de melons." Paris, AgroParisTech, 2007. http://pastel.paristech.org/3399/01/these-Lopes.pdf.
Natural ecosystems are unavoidably spatially structured and the induced heterogeneity affects various processes of ecological systems. In many cases, the influence of spatial heterogeneity on population dynamics remains unclear. This thesis contributes to a better theoretical understanding of the effects of such heterogeneity on host-parasitoid interactions. In this way, three spatial approaches were developed and adapted to the aphid pest Aphis gossypii and one of its parasitoids Lysiphlebus testaceipes in a melon greenhouse. The importance of spatial structure was tested by comparing a non-spatial model with a spatially explicit model (a lattice one). Our results showed that considering space is essential to describe the spatial heterogeneous distribution of populations Observed in the field. The way in which space should be considered was tested by comparing the spatially explicit model with a new implicit approach, which describes the level of plant infestation by a continuous variable corresponding to the number of plants with a given density of pests at a given time. When the explicit model needs as many equations as plants in the greenshouse, our novel approach has only a partial differential equation. We could infer from the comparisons between the two spatial models that the predicted host-parasitoid dynamics were similar under most conditions; and the differences were due to local dispersal (considered only in the explicit model), because it could have a strong impact on population dynamics but did not change the conclusions for crop protection. The new implicit model thus generated relevant predictions with a more synthetic formalism than the common plant-by-plant model. This implicit model was used to test biological control strategies. We showed that (i) preventive releases are less efficient than curative ones, if the cost of infestation detection is not too high; (ii) strategies with several releases are always better than single releases strategies. As a conclusion, we demonstrated that the effectiveness of a biological control depends on the functional response of the parasitoids, the initial distribution of pests (that determines the infestation process) and the costs affected to each type of strategies
Dib, Hazem. "Rôle des ennemis naturels dans la lutte biologique contre le puceron cendré, Dysaphis plantaginea Passerini (Hemiptera aphididae) en vergers de pommiers." Phd thesis, Université d'Avignon, 2010. http://tel.archives-ouvertes.fr/tel-00665080.
Kahia, Mouna. "Lutte biologique contre deux pucerons ravageurs en serre (Aphis gossypii et Aulacorthum solani) par l'utilisation des microorganismes du sol." Master's thesis, Université Laval, 2019. http://hdl.handle.net/20.500.11794/35001.
The foxglove aphid Aulacorthum solani (Kaltenbach) and the melon aphid Aphis gossypii (Glover) are among the most harmful aphids for greenhouse crops. Microbial biological control may be an effective method against these insects. The combination of different microbial agents can increase their efficiency. This work evaluates the efficacy of Beauveria bassiana ANT-03, Bacillus pumilus PTB180 and B. subtilis PTB185, used individually or in combination, to control A. gossypii and A. solani on cucumber and tomato, respectively. In the laboratory, ten L2 larvae of each aphid were placed in Petri dishes containing a tomato leaf or a cucumber leaf disc fixed in the agar plate. These larvae were sprayed with 1 mL of suspensions prepared according to the treatment (Control, B. pumilus, B. subtilis, B. bassiana, B. pumilus+ B. subtilis, B. bassiana+ B. pumilus, B bassiana+B. subtilis, B. bassiana+ B. pumilus+ B. subtilis). The same treatments used in the laboratory were applied in the greenhouse, but adult aphids were used. Laboratory and greenhouse test results revealed that by causing A. solani mortality and by affecting A. gossypii reproduction, both bacteria (B. pumilus PTB180 and B. subtilis PTB185) were able to demonstrate aphicide effect equivalent to that of the commercial product (Bioceres) containing the fungus. When used as a mixture, no additive effect between the three microorganisms studied was observed. Spore survival tests of the two bacteria and the fungus conducted in a greenhouse have shown that they retain a high level of population 106CF U/g fresh leaves up to nine days after the application when used alone or as a mixture. Thus, on plants, the two bacilli do not exhibit antifungal effect against B. bassiana ANT-03.
puceron de la digitale, puceron tacheté de la pomme de terre, puceron du melon, puceron du cotonnier
Lesueur, Fabrice. "Élaboration de formulations à base d'extraits de neem (Azadirachta indica A. Juss) pour la protection de la pomme de terre (Solanum tuberosum L.) contre le Myzus persicae, un puceron colonisateur et vecteur de virus circulants et non circulants." Thesis, Université Laval, 2006. http://www.theses.ulaval.ca/2006/23665/23665.pdf.
Books on the topic "Puceron du pois – Lutte contre":
Berthiaume, Richard. Le puceron des pousses du sapin. Sainte-Foy, Qué: Centre de foresterie des Laurentides, 2001.
1864-1927, Lochhead William, and Ontario Agricultural College, eds. Peas and the pea weevil. Toronto: L.K. Cameron, 1997.