How does a renewal spur differ from a fruiting cane?

A renewal spur plays a distinct role in grapevine pruning compared to a fruiting cane. The key difference lies in their timing and function within the growth cycle of the vine. A renewal spur is specifically intended to produce new canes for the following year; it focuses on future growth potential rather than immediate yield. By ensuring that renewal spurs are left during the pruning process, growers set the foundation for the next season’s fruiting canes.

In contrast, a fruiting cane is established with the intention of producing grapes during the current growing season. It carries the buds that develop into clusters of fruit. This differentiation is crucial for managing a vineyard effectively, as it directly impacts the balance between producing this year's crop and preparing for future years.

Understanding this distinction helps vineyard managers make informed pruning decisions that enhance both immediate fruit production and the long-term health and productivity of the grapevines.