Chapter 8

Trellising Grapevines

(book excerpts)

A trellis is needed to support the foliage and fruit since the grapevine does not have a rigid trunk. Not only does the trellis support the weight if the fruit, but it spreads the grape canopy ensuring sunlight penetrates all parts if the vine in addition to promoting good air circulation which is essential for keeping down the incidence of disease. A trellis system can be as simple as a single wire in a high cordon system to as complex as a number of catch wires at various heights as in the case of a Lyre trellis. The types of trellis systems used worldwide are numerous, and no single system is appropriate for all situations. Deficiencies in design, materials or construction can result in deficiencies in vineyard performance leading to excessively high maintenance costs throughout its life cycle. Trellis construction represents a major investment in both time and money.

Click on the following topics for more information on trellising grapevines.

Topics Within This Chapter:

  • Introduction to Wine Grape Trellis
  • Trellis Construction
  • Line Posts
  • Wooded Posts from Native Tree Species
  • Pressure Treated Wooden Posts
  • Metal Posts
  • Trellis Wire
  • Securing Wire to End Posts
  • Securing Wire to Line Posts
  • End Posts and Anchorage
  • Inverted V System
  • H-Brace End Assembly
  • Tie-back Assembly
  • Mechanically Farmed Vineyards
  • Vineyard Establishment and Operating Costs
  • Choosing a Trellis System
  • Growth Habits
  • Environmental Factors
  • Vine Vigor
  • Mechanization
  • Vineyard Establishment and Operating Costs
  • Vineyard Trellis Systems
  • Non-divided Canopy Systems
  • Umbrella Kniffin – Head-Trained Vines
  • Low Bilateral Cordon
  • High Bilateral Cordon
  • Vertical Shoot Position (VSP)
  • Divided Canopy Systems
  • Geneva Double Curtain
  • Lyre, or U-Shaped, Training
  • Scott Henry
  • Smart-Dyson
  • References