Pruning a 4 Year Marechal Foch Grapevine

3-22-13 Mike White, Viticulture Specialist with Iowa State University Extension & Outreach demonstrates how to prune a 4 year old Marechal Foch grapevine at a pruning field day held at Karl & Nicole Wilt's vineyard located west of Indianola, Iowa. Further info: contact Michael L. White