The white grape variety is an interspecific new variety between Elmer Swenson 114(Minnesota 78 x rosette) x Seyval Blanc. Synonyms are Elmer Swenson 282 and ES 282, and the new variety La Crosse was created with the same parents. It contains genes from Vitis labrusca, Vitis lincecumii, Vitis riparia, Vitis rupestris and Vitis vinifera. The hybrid was crossed in 1950 by the vine grower Elmer Swenson (1913-2004) on his farm near Osceola (Wisconsin). It is an all-female grape variety.
The vine, which ripens early to medium and is frost-hardy down to minus 31 °Celsius, is very susceptible to powdery mildew and moderately susceptible to botrytis and downy mildew. It produces fruity, rather low acidity white wines with a subtle foxtone. The variety is also used as table grape. It is grown in small quantities in the US states of Connecticut, Illinois, Iowa, Minnesota, New York, West Virginia and Wisconsin, as well as in Canada. In 2010, it covered a total of 19 hectares of vineyards in the USA (Kym Anderson statistics).
Source: Wine Grapes / J. Robinson, J. Harding, J. Vouillamoz / Penguin Books Ltd. 2012
Pictures: Ursula Brühl, Doris Schneider, Julius Kühn Institute (JKI)