EPIDEMIOLOGICAL ANALYSIS OF THE EFFECTS OF BIOFUMIGATION ON THE SPREAD OF RHIZOCTONIA SOLANI IN SUGAR BEET
| Autor: | Leclerc, Melen, Filipe, Joao A. N., Poggi, Sylvain, Doré, Thierry, Montfort, Françoise, Lucas, Philippe, Bailey, Douglas John |
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| Přispěvatelé: | Biologie des organismes et des populations appliquées à la protection des plantes (BIO3P), Institut National de la Recherche Agronomique (INRA)-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-AGROCAMPUS OUEST, Dept Plant Sci, Epidemiol & Modelling Grp, University of Cambridge [UK] (CAM), Agronomie, AgroParisTech-Institut National de la Recherche Agronomique (INRA), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro), Institut National de la Recherche Agronomique (INRA)-Université de Rennes (UR)-AGROCAMPUS OUEST, Institut National de la Recherche Agronomique (INRA)-AgroParisTech, Doré, Thierry |
| Jazyk: | angličtina |
| Rok vydání: | 2012 |
| Předmět: | |
| Zdroj: | 73rd IIRB Congress 73rd IIRB Congress, Feb 2012, Bruxelles, Belgium |
| Popis: | International audience; Brown root rot, a soil-borne disease caused by Rhizoctonia solani, is becoming more frequent in some sugar beet growing areas. In some cases, this disease can have a significant economic impact and it can be quite difficult to control.Rhizoctonia solani is a saprotrophic polyphagous fungus linving into the soil. During the period when the crop is present it can initiate an epidemic from residuals soil inoculum and spread through secondary infection from plant to plant creating well-documented bare patches of disease.In a disease management perspective biofumigation could present an opportunity to exploit the intercrop period preceding the beet crop. In fact, some scientific works have demonstrated that growing and incorporating mustard could decrease the impact of R. solani on sugar beet. However, from an epidemiological point of view, biofumigation has several effects on the pathogen, some positive and others nega-tive. The balance between these effects could explain the level of success or failure of this biological treatment.Several experimental and modelling results are presented here to show how R. solani spreads in a sugar beet field and how biofumigation affects the epidemic. These research results have the potential to provide strategies for managing the disease. |
| Databáze: | OpenAIRE |
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