Pruning vines promotes ripening
If your melons, pumpkins, or tomatoes that have set on enough fruit to supply your needs for the year, it is OK to prune off the ends of the vine. Pruning the ends of vines in these plants is a great way to encourage them to ripen their fruit and quit growing. The energy in the vine goes into finishing the fruit on the vine rather than continuing to grow and produce more flowers and fruit.
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