When and How to Prune Grapevines
The editor will share some small experiences on pruning grapevines with everyone, and then let's get to know more about it.
When and How to Prune Grapevines
Grapes are a fruit planted in many regions. To ensure the yield and quality of grapes, proper pruning management is essential. So, when should grapes be pruned? What are the pruning methods? Let's find out.
When to Prune Grapevines
Grapevines can be pruned all year round, with different effects depending on the season. For instance, pruning in mid-spring is a method to wipe off the flower buds in mid-spring, which can eliminate multiple, thin, and bad buds, thereby saving nutrients. Summer pruning involves removing the central part of the fruiting and nutrient branches, slightly handling the secondary branches, pinching the scrolls in order, shaping the fruit clusters, and thinning the clusters along the spikes.
In autumn, the task is to remove closed branches, weak branches, and branches with low lignification, adjust the number of branches, see the brightness of the branches, improve lighting conditions, and make the surface of the shelves more transparent. Additionally, winter pruning is also an effective method to determine the next year's yield. Below is a detailed understanding of winter pruning of grapevines.
Operational Methods for Pruning Grapevines
1. Look at the quantity
It mainly depends on the variety, age of the tree, tree vigor, trellis style, bud eyes, branch maturity, and the growth status of adjacent species. Determine the pruning amount and standards based on the number of fruiting branches, the number of bud eyes, and the expected yield of each variety.
2. Reduction
Refers to the section of the vine that is more than two years old. The main function of reduction is to update the vitality of the tree, keep the fruiting mother branches in a dominant position, prevent the outward movement and expansion of the fruiting part, ensure the health of the tree, prevent the occurrence of bald spots, and keep the main vines young.
3. Thinning branches
Refers to the thinning of diseased and weak branches, dead branches, main lateral vines that are too dense and withered, and dead stakes and buds that have no use.
4. Cutting
Based on the standards of pruning quantity, determine the appropriate amount of mother branch pruning and prune the one-year-old branches according to the specific situation; select the cutting length based on factors such as the variety, trellis type, summer branch management, and cultivation environment.
Precautions for Winter Pruning of Grapevines
1. The cut surface should be smooth and flat without stubble. The thickness of the slicing surface should be 1-2 cm to avoid drying out the winter buds.
2. To protect the wound, apply a wound protectant or white latex to the wound.
3. To avoid frost damage, short stakes should be removed next year.
4. Avoid mouth-to-mouth injury to prevent damage to the tree body, injury to the seasonal water flow, and causing tree weakness.
Pruning is an important measure in grape cultivation. Pruning is to adjust the movement of water and nutrients, enhance the physiological activity of fruit trees, and aim to improve ventilation and lighting conditions, strengthen photosynthesis, and reduce the occurrence of diseases.
The above content on when and how to prune grapevines is brought to you in full, hoping it will be helpful to green plant enthusiasts!