What is the primary purpose of a renewal spur?

The primary purpose of a renewal spur is to produce new wood for future pruning. In grapevine management, spurs are short, fruiting wood that is left on the vine after pruning to ensure that new shoots will grow in the following season. These new shoots are crucial for establishing healthy foliage and fruit development. By generating fresh growth, the renewal spur helps maintain the vine's vigor and productivity over time, ensuring a sustained yield of quality grapes in subsequent years. Essential to grapevine lifespan and productivity, harnessing the capabilities of the renewal spur plays a key role in effective vineyard management.