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IVES 9 IVES Conference Series 9 Terclim 9 Terclim 2026 9 Terclim 2026 – Session 3: Impacts of changing terroir components on product identity 9 Can the foliar expression of esca symptoms modify the typicity of Terroir wines?

Can the foliar expression of esca symptoms modify the typicity of Terroir wines?

Abstract

Esca is a widespread grapevine trunk disease known to reduce yield and to alter wine composition. However, its effects on wine sensory characteristics remains poorly understood. This study investigated the influence of esca on the chemical and sensory profiles of Bordeaux red wines using a broad panel of wines from two vineyards over three vintages. This experiment takes into account symptom expression during the year of harvest, but also the previous history of symptoms in the parcel. Wines from symptomatic vines exhibited wine composition differences only when symptoms were present during the harvest year. Sensory differences between symptomatic and asymptomatic vine wines were minimal in young wines but became more pronounced with aging. Terroir wines are considered able to age and to develop a typical bouquet after reductive evolution. Aged wines from esca-affected vines showed accelerated color changes toward yellow hues, reduced fruitiness and complexity, and decreased tannin perception. These results indicate that esca has minimal influence on wine attributes early on, but increasingly affects sensory properties over time. This knowledge is important for esca management in the vineyard and the evaluation of Terroir wines intended for long-term aging.

References

Bortolami, G., Gambetta, G. A, Delzon, S, Lamarque, L., Pouzoulet, J., Badel, E., Burlett, R., Charrier, G., Cochard, H., Dayer, S., Jansen, S., King, A., Lecomte, P., Lens, F., Torres-Ruiz, J. M., & Delmas, C.E.L. (2019). Exploring the hydraulic failure hypothesis of esca leaf symptom formation. Plant Physiology. 2019, 181(3), 1163-1174. https://doi.org/10.1104/pp.19.00591

Bortolami, G., Gambetta, G.A., Cassan, C., Dayer, S., Farolfi, E., Ferrer, N., Gibon, Y., Jolivet, J., Lecomte, P., & Delmas, C.E.L. (2021). Grapevines under drought do not express esca leaf symptoms. PNAS. 118(43): e2112825118 https://doi.org/10.1073/pnas.2112825118

Bruez, E., Cholet, C., Thibon, C., Redon, P., Lacampagne, S., Martignon, T., Giudici, M., Darriet, P., & Gény L. (2021). Influence of curettage on Esca-diseased Vitis vinifera L. cv. Sauvignon blanc plants on the quality of musts and wines. Oeno One. 55(1), 171-182. https://doi.org/10.20870/oeno-one.2021.55.1.4479

Calzarano, F, Cichelli, A, & Odoardi, M. (2001). Preliminary evaluation of variations in composition induced by Esca on cv. Trebbiano d’Abruzzo grapes and wines. Phytopathologia Mediterranea, 40, 443–448.

Calzarano, F., Seghetti, L., Del Carlo, M., & Cichelli, A. (2004). Effect of esca on the quality of berries, musts and wines. Phytopathologia Mediterranea. 2004, 43, 125-135.

Calzarano, F., Osti, F., Baránek, M., & Di Marco, S. (2018). Rainfall and temperature influence expression of foliar symptoms of grapevine leaf stripe disease (esca complex) in vineyards. Phytopathologia Mediterranea. 2018, 57, 488-505. https://doi.org/10. 14601/Phytopathol_Mediterr‐2378

Dewasme, C., Azevedo, W., & Gambetta, G.A (2024). Vineyard age-specific cohorts display similar climate x esca relationships but suggest hidden drivers in younger vineyards. OENO One, 58(2). https://doi.org/10.20870/oeno-one.2024.58.2.7818

Dewasme, C., Mary, S., Darrieutort, G., Roby, J.P., & Gambetta G.A. (2022). Long-term esca monitoring reveals disease impacts on fruit yield and wine quality. Plant disease 106(12), 3076-3082. https://doi.org/10.1094/PDIS-11-21-2454-RE

Gramaje, D., Úrbez-Torres, J.R., & Sosnowski, M.R. (2018). Managing grapevine trunk diseases with respect to etiology and epidemiology: current strategies and future prospects. Plant Disease. 2018, 102 (1), 12–39.

Laveau, C., Letouze, A., Louvet, G., Bastien, S., & Guerin-dubrana, L. (2009). Differential aggressiveness of fungi implicated in esca and associated diseases of grapevine in France. Phytopathologia Mediterranea 48(1), 32-46. doi: 10.14601/Phytopathol_Mediterr-2873.

Lorrain, B., Ky, I., Pasquier, G., Jourdes, M., Guerin-Dubrana, L., & Geny, L. (2012). Effect of Esca disease on the phenolic and sensory attributes of Cabernet Sauvignon grapes, musts and wines. Aust. J. Grape Wine Res. 18(1), 64-72.

Mondello, V., Larignon, P., Armengol, J., Kortekamp, A., Vaczy, K., Prezman, F., Serrano, E., Rego, C., Mugnai, L., & Fontaine, F. (2018). Management of grapevine trunk diseases: Knowledge transfer, current strategies and innovative strategies adopted in Europe. Phytopathologia Mediterranea. 2018, 57, 369-383.

Pinheiro, J.C. & Bates, D.M. (2000). Linear mixed-effects models: Basic concepts and examples. Statistics and Computing. Springer, New York, NY. 3-56.

Surico, G., Mugnai, L., & Marchi, G. (2006). Older and more recent observations on Esca: a critical overview. Phytopathologia Mediterranea 45, 68-86.

van Leeuwen, C., Barbe, J.-C., Darriet, P., Destrac-Irvine, A., Gowdy, M., Lytra, G., & Thibon, C. (2022). Aromatic maturity is a cornerstone of terroir expression in red wine: This article is published in cooperation with Terclim 2022 (XIVth International Terroir Congress and 2nd ClimWine Symposium), 3-8 July 2022, Bordeaux, France. OENO One, 56(2), 335–351. https://doi.org/10.20870/oeno-one.2022.56.2.5441

Acknowledgments

The author and co-authors would like to thank the ‘Club Médoc’ consortium for its technical and financial support for this work, as well as the French government’s CIR funding, which benefited the study.

Publication date: June 29, 2026

Issue: Terclim 2026

Type: Oral

Authors

Coralie Dewasme1,*, Georgia Lytra2, Séverine Mary3, Jean-Philippe Roby4, Gregory A. Gambetta1

1 EGFV, Bordeaux Sciences Agro, ISVV, INRAE, Université de Bordeaux, F-33882 Villenave-d’Ornon, France

2 Univ. Bordeaux, INRAE, Bordeaux INP, Bordeaux Sciences Agro, UMR 1366, OENO, ISVV, F-33882 Villenave-d’Ornon, France

3 Vitinnov, Bordeaux Sciences Agro, ISVV, Université de Bordeaux, 1 cours du Général de Gaulle, 33170 Gradignan, France

4 Jean-Philippe Roby Conseil, 58 rue de Ségur, 33290 Parempuyre, France

Contact the author*

Keywords

esca, wine composition, sensory analyses

Tags

IVES Conference Series | terclim | Terclim 2026

Citation

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