The white grape variety is an interspecific new breed between Seyval Blanc x Bacchus, Synonyms are Muscat de la Birse and VB 86-6; It is named after the Birs creek. They are genes from Vitis lincecumii. Vitis rupestris and Vitis vinifera contain. The crossing of the hybrid was done in 1986 by the Swiss private breeder Valentin Blattner in Soyhières in the canton of Jura in the Switzerland, The early to medium maturing vine is relatively resistant to both mildews and frost but prone to Verrieseln, It produces low-acid white wines with subtle nutmeg and is also called table grape used. The variety is used by the grower in his vineyards in Soyhières, and to a small extent in Belgium grown.
Source: Wine Grapes / J. Robinson, J. Harding, J. Vouillamoz / Penguin Books Ltd. 2012
Picture: Ursula Brühl, Doris Schneider, Julius Kühn Institute (JKI)