Calwineries

Pruning

The role of Pruning in Vineyard Management

Correctly pruned vines rarely have to undergo fruit thinning and produce concentrated, flavorful grapes. Vineyards are pruned several times throughout the year. During Winter, when the vines are dormant, the previous year’s growth is cut back. Depending on the severity of the climate, vineyards are normally pruned within three months after harvest.

The longer pruning is put off, the later budbreak will occur in the Spring. In colder climates it is beneficial to postpone budbreak so the vine is not adversely affected by a late cold streak.

Pruning may be necessary throughout the growing season as well. Sometimes shoots will sprout from the trunk and need to be removed. Leaves that are right around the grape clusters are also pruned to increase sun and wind exposure.
This helps to prevent mold and mildew in humid weather. On the other hand, the canopy is allowed to grow in very sunny regions to prevent grapes from being scorched.

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