Grape Breeding and Enology

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Welcome to the Grape Breeding and Enology project website!

Located at the University of Minnesota-Twin Cities, we conduct research in the Department of Horticultural Science and at the Horticultural Research Center.  Our focus is on grapevine cultivar development which includes: wine grapes, table grape varieties, and ornamentals that survive and thrive the cold-climate conditions.  We also focus on understanding the mechanisms of disease and pest resistance so that we incorporate these traits as a way to improve sustainability for Minnesota growers.  In addition to developing grapes, we focus on developing and teaching enology best practices for cold-hardy grapes.

Volatile Acidity in Wine Making

Volatile Acidity in Wine Making

Drew Horton and Matthew Clark
Dept. of Horticulture, University of Minnesota
 

9/27/2016

Volatile Acidity, or "VA", is caused by a type of bacterial spoilage which produces large amounts Acetic acid (vinegar) which is a serious wine fault, the metabolization of acetic acid and alcohol (ethanol) can produce ethyl acetate which smells like nail-polish remover and is also a serious wine fault.

Alert: Spotted Wing Drosophila (SWD) in Grapes

Alert: Spotted Wing Drosophila (SWD) in Grapes

Matthew Clark1, Eric Burkness2, Drew Horton1, and Bill Hutchison2
1Grape Breeding & Enology Program, Dept. of Horticulture, University of Minnesota
2MN Extension IPM Program, Dept. of Entomology, University of Minnesota

9/27/2016

Berry Infestation

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