This video explains and demonstrates proper techniques for pruning concord grapevines for the winter months. Provided by the Lake Erie Regional Grape Program.
Basic Principles of Pruning Backyard Grapevines – Ohio State University Extension
Growing Table Grapes in a Temperate Climate – Michigan State University Extension
PRUNING OF WINE GRAPES – CORNELL
Vine Training Systems for Wine Grape Production in Cool Climates
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Pruning, Training and Grape Canopy Management – Iowa State