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Week of June 24, 2021

Table grape vines can be pruned in June through July to thin out shoots which will open up the plant for better sunlight penetration and air circulation. This will help in preventing powdery mildew and is also good for fruit development. You want to wait and thin out your vines after your plant has set fruit and the clusters are starting to size up (size of a pea). Thin to 6-8 shoots per foot of canopy. You also want to trim the vines with fruit clusters. Trim them to leave about 15-17 leaves after the fruit cluster. Remove the suckers growing on the trunk of grape vine. Cluster thin your vines so you only have 1-2 fruit clusters per shoot. You should pick the largest clusters and remove any misshaped clusters. You can also snip off the bottom of each grape cluster, which will improve the size of the fruit. What our video on summer pruning to see the process.
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