- 6 - trellises as property used in vineyard development and not as land improvement. Although it may not occur often, trellis systems have been dismantled and components reused in a new location. Trellising components become damaged, rust and/or wear out and are repaired and/or replaced throughout the year. The trellising posts, stakes, wires, etc. are regularly adjusted, tightened, and replaced to accommodate the training of the vines for maximum grape-growing performance. Occasionally, trellising may be removed from a few rows of a block or from an entire block of vines, and the major components are reused. Grapevines may be removed from a trellis system without damaging the trellis. Likewise, a trellis system may be removed without damaging the grapevines. It is also possible to remove the vines and reuse the trellising components for the new vines. Vines may be replaced when they become diseased or if a particular varietal becomes unprofitable or unpopular. The primary structural components that affix the trellis to the earth are the end and in-line posts which are rammed 2 to 3 feet into the ground and stabilized and secured by metal stakes and/or mechanically screwed-in anchors. The end posts may be metal or wood, the wooden posts are 8 to 10 feet in length, and the wood posts may be pressure treated with chemicals to retardPage: Previous 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 NextLast modified: November 10, 2007