The best time to prune grape branches is usually in late autumn and before winter, which is about 65438+February. When the grapes are picked and the leaves fall, it's time to prune them. Grape pruning is usually carried out in summer and winter.
The demand for pruning in winter is the greatest, and the specific pruning time and method should be determined according to the local environment and climate. Different varieties of vines have different pruning methods.
Vine pruning time in winter
Only by pruning vines at the right time can we store a lot of nutrients, which is beneficial to germination, inflorescence differentiation and new branch growth in the coming year. The best time to prune grapes in winter is about one month before the vines completely enter the dormant period and bleeding period.
In addition, when pruning grapes in winter, the temperature drops obviously, and it takes half a month to a month to observe that all the leaves of the vines fall. The specific time of pruning vines in winter should be in the middle of 10, and the specific pruning time can be adjusted according to local conditions.
Matters needing attention in vine pruning
When pruning vines in winter, try not to hurt the main branches. If the damage to the main branches is too large, it will not only easily lead to trunk rot, but also affect the growth and fruit quantity.
The vines are pruned in winter. For weak branches, if there is still the ability to bear fruit, when there is no bud at the base, the main branches on the old branches can be cut off to help the weak branches grow stronger and balance the growth of trees. For the old branches and vines, if they have no ability to bear fruit, they must be completely removed.
Pruning time of vines in summer
The total pruning of vines in summer can be divided into three times, and the pruning methods are different with different pruning time. The first pruning is carried out before the buds germinate and spread leaves. At this time, we can see some new buds sprouting from the weak branches pruned in winter, and some old branches will be at the base of some buds.
You don't need tools at this time, just wipe it gently with your hands. For those buds on twigs, stunted buds can be removed at this time.
The second pruning was carried out when the new treetops grew about 7 leaves, which showed the size and strength of inflorescences. In the specific operation process, pruning should be carried out according to the variety, soil, tree potential and planned yield, and the number of new branches should be determined.
The third pruning is carried out when the new branches are bound for the second time. The second pruning will leave more branches. This time, the top of the tree with inflorescences will be left and the rest will be removed.