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.

Early Season Control of Phomopsis on Grapes

Author: Annie Klodd, Extension Educator

Phomopsis is a prevalent grape disease in Minnesota, and should be sprayed for as part of your early season spray program between bud break and pre-bloom stages. If uncontrolled, it causes brown and black lesions on the canes, black/yellow spots on the leaves, and rot on the ripe berries that can lead to weaker plants and yield loss. Below are some key tips for managing phomopsis:

Tips for Reducing Grapevine Trunk Disease During Pruning

Many growers have been inquiring about what they can do during pruning to manage grapevine trunk disease (GTD). Below are a few general tips to reducing the risk or prevalence of grapevine trunk disease. They can be adapted to the individual vineyard based on what is feasible within your management system.

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