Esca of grapevine and training practices in France: results of a 10-year survey
Esca is a widespread and damaging grapevine trunk disease in France. A survey was undertaken to identify relevant cultural factors that may influence symptom severity. Preliminary observations in the Aquitaine region confirmed the complex interactions among cultivar, vine training system, and climat...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Firenze University Press
2018-12-01
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| Series: | Phytopathologia Mediterranea |
| Subjects: | |
| Online Access: | https://oajournals.fupress.net/index.php/pm/article/view/5785 |
| _version_ | 1818140652299354112 |
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| author | Pascal LECOMTE Barka DIARRA Alain CARBONNEAU Patrice REY Christel CHEVRIER |
| author_facet | Pascal LECOMTE Barka DIARRA Alain CARBONNEAU Patrice REY Christel CHEVRIER |
| author_sort | Pascal LECOMTE |
| collection | DOAJ |
| description | Esca is a widespread and damaging grapevine trunk disease in France. A survey was undertaken to identify relevant cultural factors that may influence symptom severity. Preliminary observations in the Aquitaine region confirmed the complex interactions among cultivar, vine training system, and climate, so the study was expanded to the national level to help account for esca in different wine growing regions. Twenty-five vineyard plots were examined. The plots were comparable by pairs, with the same cultivar (or cultivar with similar levels of susceptibility in a few cases), with the same age and similar soil and climatic environments, but with different training or pruning systems. Esca was the predominant trunk disease and prevalence was assessed by visible symptoms on leaves and on wood. Training systems with long arms (or cordons) were generally less affected by the disease than those with short or no arms. Pruning also played a major role, with a trend of less severe symptoms associated with less pruning. The study confirmed that foliar symptoms reveal the presence of the disease, but cannot be considered a reliable indicator of the disease impact in all situations. This study also confirmed: i) that vine training and pruning options may greatly influence the severity of esca, ii) that increasing the length of cordons may minimize the consequences of the wood necroses, and, iii) that simplifications of the woody vine structure (resulting from adoption of modern training and pruning options) may have favoured the development of esca. |
| first_indexed | 2024-12-11T10:47:23Z |
| format | Article |
| id | doaj.art-94c132fdb915421c93cec317a4d12a7a |
| institution | Directory Open Access Journal |
| issn | 0031-9465 1593-2095 |
| language | English |
| last_indexed | 2024-12-11T10:47:23Z |
| publishDate | 2018-12-01 |
| publisher | Firenze University Press |
| record_format | Article |
| series | Phytopathologia Mediterranea |
| spelling | doaj.art-94c132fdb915421c93cec317a4d12a7a2022-12-22T01:10:26ZengFirenze University PressPhytopathologia Mediterranea0031-94651593-20952018-12-0157310.14601/Phytopathol_Mediterr-22025Esca of grapevine and training practices in France: results of a 10-year surveyPascal LECOMTE0Barka DIARRA 1Alain CARBONNEAU2Patrice REY3Christel CHEVRIER4INRA, UMR 1065 SAVE, Université de Bordeaux, ISVV, 71 av. Edouard Bourleaux, 33882, Villenave d’Ornon, FranceINRA, UMR 1065 SAVE, Université de Bordeaux, ISVV, 71 av. Edouard Bourleaux, 33882, Villenave d’Ornon, FranceMontpellier SupAgro IHEV, 2 Place Viala, F-34060 Montpellier, FranceBordeaux Sciences Agro, UMR 1065 SAVE, Université de Bordeaux, ISVV, 71 av. Edouard Bourleaux, 33882, Villenave d’Ornon, FranceChambre Régionale d’Agriculture du Languedoc-Roussillon - CS 30012 - 34875 LATTES, FranceEsca is a widespread and damaging grapevine trunk disease in France. A survey was undertaken to identify relevant cultural factors that may influence symptom severity. Preliminary observations in the Aquitaine region confirmed the complex interactions among cultivar, vine training system, and climate, so the study was expanded to the national level to help account for esca in different wine growing regions. Twenty-five vineyard plots were examined. The plots were comparable by pairs, with the same cultivar (or cultivar with similar levels of susceptibility in a few cases), with the same age and similar soil and climatic environments, but with different training or pruning systems. Esca was the predominant trunk disease and prevalence was assessed by visible symptoms on leaves and on wood. Training systems with long arms (or cordons) were generally less affected by the disease than those with short or no arms. Pruning also played a major role, with a trend of less severe symptoms associated with less pruning. The study confirmed that foliar symptoms reveal the presence of the disease, but cannot be considered a reliable indicator of the disease impact in all situations. This study also confirmed: i) that vine training and pruning options may greatly influence the severity of esca, ii) that increasing the length of cordons may minimize the consequences of the wood necroses, and, iii) that simplifications of the woody vine structure (resulting from adoption of modern training and pruning options) may have favoured the development of esca.https://oajournals.fupress.net/index.php/pm/article/view/5785damagegrapevine trunk diseasespruningtrellising |
| spellingShingle | Pascal LECOMTE Barka DIARRA Alain CARBONNEAU Patrice REY Christel CHEVRIER Esca of grapevine and training practices in France: results of a 10-year survey Phytopathologia Mediterranea damage grapevine trunk diseases pruning trellising |
| title | Esca of grapevine and training practices in France: results of a 10-year survey |
| title_full | Esca of grapevine and training practices in France: results of a 10-year survey |
| title_fullStr | Esca of grapevine and training practices in France: results of a 10-year survey |
| title_full_unstemmed | Esca of grapevine and training practices in France: results of a 10-year survey |
| title_short | Esca of grapevine and training practices in France: results of a 10-year survey |
| title_sort | esca of grapevine and training practices in france results of a 10 year survey |
| topic | damage grapevine trunk diseases pruning trellising |
| url | https://oajournals.fupress.net/index.php/pm/article/view/5785 |
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