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Dernière mise à jour : Mai 2018

Menu Logo Principal ministère de l'Agriculture (DGER) CNIV Bordeaux Sciences Agro Université Champagne-Ardenne IFV ISVV

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Rey P, Bertsch C, Fontaine F, Larignon P (2016)

Maladies du bois de la vigne, avancées en France depuis 2010. Phytoma 693, 7-10

Résumé

Contexte
Une rencontre, les 17 et 18 novembre 2015 à Colmar, a permis de faire le point sur les travaux de recherche en cours et les avancées depuis 2010 en France concernant les maladies du bois (MDB) de la vigne.

Travaux
Le point épidémiologique a souligné l’inquiétante expansion des MDB. Le tour des connaissances acquises et travaux de compréhension de la maladie a été fait. Ont été présentés : des évaluations de sensibilité des cépages, des travaux autour de l’hypothèse du rôle des composés extracellulaires produits par les champignons (phytotoxines fongiques), des études des réponses de la vigne, la recherche d’un modèle conceptuel sur les MDB, l’évaluation de l’effet des modes de taille.

Trois axes de travail sur les méthodes de lutte ont été présentés : les pratiques culturales (taille, mode de greffe, porte-greffe et curetage), le biocontrôle (une souche de Pythium oligandrum et de 46 souches bactériennes testées) et la compréhension du mode d’action de l’arsénite
de soude pour cibler la recherche de produit.

Mots clés
Vigne, MDB (maladies du bois), esca-BDA, recherche, épidémiologie, champignons associés, composés extra-cellulaires, flux de sève, protection, pratiques culturales, biocontrôle, arsénite de soude.