Growing Grapes in WV - West Virginia Department of Agriculture
Growing Grapes in WV - West Virginia Department of Agriculture
Growing Grapes in WV - West Virginia Department of Agriculture
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Geneva Curta<strong>in</strong>-TypeTrellis for <strong>Grapes</strong>The Geneva Curta<strong>in</strong> trellisis a three-wire T-shaped trellisdesigned for high production andmechanical harvest<strong>in</strong>g, usuallyon relatively flat terra<strong>in</strong>. S<strong>in</strong>glespan brace or tie-back assembliesproperly constructed can supporttrellises up to 4,000-foot length.L<strong>in</strong>e posts spaced 20-30 feet apart,depend<strong>in</strong>g on terra<strong>in</strong>, providesupport for the 12-1/2 gauge hightensile support wires.Wire spac<strong>in</strong>g from the groundup for the vertical support wiresis 26, 26 and 20 <strong>in</strong>ches. A 4-footlong cross-arm is used to supporttwo upper support wires placed 22<strong>in</strong>ches out from the post. Theseupper support wires are at a72-<strong>in</strong>ch height above ground. Allwires are tensioned to a m<strong>in</strong>imum<strong>of</strong> 250 pounds. L<strong>in</strong>e posts shouldbe placed closer together on roll<strong>in</strong>gterra<strong>in</strong> to ma<strong>in</strong>ta<strong>in</strong> a uniform wireheight.General trellis componentspecifications are given <strong>in</strong> Figure6. The trellis can be modified to accommodatedifferent requirements.-17-
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