What is girdling in the context of grapevine pruning?

Girdling refers specifically to the removal of a complete ring of bark from the cane or trunk of the grapevine. This technique is often used intentionally to control vine growth and enhance the development of certain fruiting areas by disrupting the flow of nutrients and water, thereby concentrating resources in specific parts of the vine. Girdling can encourage increased fruiting and improved fruit quality, as it leads to a buildup of carbohydrates above the girdled area. Understanding this process is crucial for vine managers seeking to optimize grape production and ensure proper development throughout the growing season.