Vol. 16 No. 2 (2010)
Articles

Powdery mildew infection dependent on weather factors in vineyards near Keszthely in 2008

Published March 2, 2010
P. Taksony
University of Pannonia, Georgikon Faculty, Department of Horticulture, 8360 Keszthely, Deak Ferenc St. 16.
E. Tarczal
University of Pannonia, Georgikon Faculty, Department of Horticulture, 8360 Keszthely, Deak Ferenc St. 16
K. Maráczi
University of Pannonia, Georgikon Faculty, Department of Horticulture, 8360 Keszthely, Deak Ferenc St. 16
I. J. Holb
University of Debrecen, Centre of Agricultural Sciences and Engineering, H-4015 Debrecen, PO Box 36
L. Kocsis
University of Pannonia, Georgikon Faculty, Department of Horticulture, 8360 Keszthely, Deak Ferenc St. 16.
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APA

Taksony, P., Tarczal, E., Maráczi, K., Holb, I. J., & Kocsis, L. (2010). Powdery mildew infection dependent on weather factors in vineyards near Keszthely in 2008. International Journal of Horticultural Science, 16(2), 55-59. https://doi.org/10.31421/IJHS/16/2/885

Weather conditions are extremely influential on grapevine productivity and quality. High temperature and humidity makes favorable conditions for powdery mildew infection respectively. The meteorological data around Keszthely, Hungary show the vegetative period is dryer and warmer than it was closely hundred years ago. We examined the development of powdery mildew infection  on  two variet ies Vitis vinifera L. cv Italian Riesling and cv Merlot in relation with meteorological data. No primer infections were appeared in the vineyard. The year of 2008 was quite ideal for the accumulation of Erysiphe necator in the experimental vineyard. Although the dry summer can lower the infection, but if the high temperature is coupling with rainfall, the possibilities of powdery mildew infection is going to grow higher during the upcoming years.

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