The pruning is a major deal in the season of a vineyard. For example here is row #49 of Chardonnay prior to pruning:
And here is row #49 after the pruning. It took approximately 2 hours to pruning the 250 foot row of Chardonnay. Notice how neat and clean the row now looks. Once the flail mower is fixed, (a upcoming blog post) the cuttings that litter the vineyard aisles will be ground up and mulched back to the soil.