Abstract
The effect of two training systems on the development of powdery mildew caused by Erysiphe necator in berries of Chardonnay and Cabernet Sauvignon grapevines was examined. Disease development was monitored on berries from vines trained to either vertical shoot positioning or as free-positioned, topped vines with no foliage support wires. No fungicides were applied and powdery mildew development was recorded following artificial inoculation of young berries. Disease incidence was higher in berries collected from the vertical shoot system than in berries from the free-canopy vines. Incubating the berries under the reciprocal training system had a slight effect on PM development with the more susceptible berries of the VSP system but not on berries from the free canopy. The data suggest that the training system decreases disease development mainly through an effect on the susceptibility of the berries. The latter were less vulnerable to artificial inoculation performed in the laboratory after prior exposure to higher radiance intensity. The free-position system may therefore be useful in reducing the use of fungicides.
References
Amsalem, L., Freeman, S., Rav-David, D., Nitzani, Y., Sztejnberg, A., Pertot, I., et al. (2006). Effect of climatic factors on powdery mildew caused by Sphaerotheca macularis f. sp. Fragariae on Strawberry. European Journal of Plant Pathology, 114, 283–292.
Austin, C. N., & Wilcox, W. F. (2011). Effects of fruit-zone leaf removal, training systems, and irrigation on the development of grapevine powdery mildew. American Journal of Enology and Viticulture, 62, 193–198.
Bonomelli, A., Mercier, L., Franchel, J., Baillieul, F., Benizri, E., & Mauro, M. C. (2004). Response of grapevine defenses to UV-C exposure. American Journal of Enology and Viticulture, 55, 51–59.
Calonnec, A., Cartolaro, P., Naulin, J. M., Bailey, D., & Langlais, M. (2008). A host-pathogen simulation model: powdery mildew of grapevine. Plant Pathology, 57, 493–508.
Calonnec, A., Cartolaro, P., & Chadoeuf, J. (2009). Highlighting features of spatiotemporal spread of powdery mildew epidemics in the vineyard using statistical modeling on field experimental data. Phytopathology, 99, 411–422.
Deliere, L., Miclot, A. S., Sauris, P., Rey, P., & Callonec, A. (2010). Efficacy of fungicides with various modes of action in controlling the early stages of an Erysiphe necator-induced epidemic. Pest Management Science, 66, 1367–1373.
Doster, M. A., & Schnathorst, W. C. (1985). Comparative susceptibility of various grapevine cultivars to the powdery mildew fungus Uncinula necator. American Journal of Enology and Viticulture, 36, 101–104.
Downey, M. O., Dokoozlian, N. K., & Krstic, M. P. (2006). Cultural practice and environmental impacts on the flavonoid composition of grapes and wine: a review of recent research. American Journal of Enology and Viticulture, 57, 257–268.
Fourtouni, A., Manetas, Y., & Christias, C. (1998). Effects of UV-B radiation on growth pigmentation, and spore production in the phytopathogenic fungus Alternaria solani. Canadian Journal of Botany, 76, 2093–2099.
Gadoury, D. M., Seem, R. C., Ficke, A., & Wayne, F. W. (2003) Ontogenic resistance to powdery mildew in grape berries. Phytopathology, 93, 547–555.
Hatakeyama, R., Nakahama, T., Higuchi, Y., & Kitamoto, K. (2007). Light represses conidiation in Koji Mold Aspergillus oryzae. Bioscience, Biotechnology, and Biochemistry, 71, 1844–1849.
Jacob, D., Rav David, D., Sztjenberg, A., & Elad, Y. (2008). Conditions for development of powdery mildew of tomato caused by Oidium neolycopersici. Phytopathology, 98, 270–281.
Keller, M., Rogiers, S. Y., & Schultz, H. R. (2003). Nitrogen and ultraviolet radiation modify grapevines’ susceptibility to powdery mildew. Vitis, 42, 87–94.
Kennedy, J. A. (2008). Grape and wine phenolics: observations and recent findings. Ciencia e Investigación Agraria, 35, 107–120.
Rotem, J., Wooding, B., & Aylor, D. E. (1985). The role of solar radiation, especially ultraviolet, in the mortality of fungal spores. Phytopathology, 75, 510–514.
Shafia, A., Sutton, J. C., Yu, H., & Fletcher, R. A. (2001). Influence of preinoculation light intensity on development and interactions of Botrytis cinerea and Clonostachys rosea in tomato leaves. Canadian Journal of Plant Pathology, 23, 346–357.
Stevenson, R. E., & Pennypacker, S. P. (1988). Effect of radiation, temperature, and moisture on conidial germination of Alternaria solani. Phytopathology, 78, 926–930.
Valdes-Gomez, H., Gary, C., Cartolaro, P., Lolas-Caneo, M., & Calonnec, A. (2011). Powdery mildew development is positively influenced by grapevine vegetative growth induced by different soil management strategies. Crop Protection, 30, 1168–1177.
Wargent, J. J., Taylor, A., & Paul, N. D. (2006). UV supplementation for growth regulation and disease control. Acta Horticulturae (ISHS), 711, 333–338.
Willocquet, L., Colomber, D., Rougier, M., Fargus, J., & Clerjeau, M. (1996). Effects of radiation, especially ultraviolet B, on conidial germination and mycelial growth of grape powdery mildew. European Journal of Plant Pathology, 102, 441–449.
Zahavi, T., Reuveni, M., Scheglov, D., & Lavee, S. (2001). Effect of grapevine training systems on development of powdery mildew. European Journal of Plant Pathology, 107, 495–501.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Zahavi, T., Reuveni, M. Effect of grapevine training systems on susceptibility of berries to infection by Erysiphe necator . Eur J Plant Pathol 133, 511–515 (2012). https://doi.org/10.1007/s10658-012-9938-z
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10658-012-9938-z