Wapato, Washington, grape grower Mike Sauer has experience with replanting both wine and juice grapes. Wine grapes, when following wine grapes in a vineyard with wide spacing between vine rows, are relatively easy, but Concords following Concords are a ­different problem, he says. Sauer’s early wine grape vineyards were planted to wide spacings (ten feet between vine rows), similar to juice grape spacing; however, he used drip irrigation for the wine grapes. He has had good success in replanting wine grapes that were originally on wide spacings by moving the vine row over five feet and planting where the old […]