How to tie grapes to a trellis?
Tying grapes is an obligatory agricultural technique and is widely used by both owners of large vineyards and amateur gardeners. Competent and timely tying allows you to form a vine of the correct shape and has a positive effect on the future harvest.
What is the garter for?
The need to tie the vine is due to the requirement for the placement of grape clusters for more convenient collection and their more optimal location relative to the sun. Otherwise, the vine will choose random supports and start to take on irregular, chaotic shapes. This will make it difficult to care for the plant, complicate the harvesting of fruits and increase the likelihood of uneven ripening of the grapes.
In addition, the clusters will begin to form randomly and, due to poor ventilation, may begin to rot. Spontaneously growing grape bushes do not withstand strong gusts of wind well and do not allow pinching and pest control in the proper amount.
Overgrown shoots will break, and on undersized shoots, the germination of the lower buds will significantly slow down. In a favorable climate, an untied vine begins to grow rapidly and entangles everything around it, including other plants, fences and outbuildings.Thus, tying up the vine must be done.
This procedure will simplify the care of the plant, will promote uniform growth of all shoots, significantly reduce the risk of fungal diseases, accelerate the ripening of fruits, facilitate the pollination of peduncles and allow you to form a beautiful and neat vine.
Types of tapestries
Grape trellises are classified according to several criteria, the most fundamental of which is the type of construction. According to this criterion, two types of tapestries are distinguished.
Single plane trellis
It is considered the best option for vertical props and is widely used in small vineyards. The device of a single-plane trellis is quite simple: two or three rows of strong wire are stretched between two adjacent posts, and the bottom row should be located at a height of at least 50 cm from the ground. Subsequent rows are placed 40 cm apart.
The advantages of these structures are ease of operation, the possibility of free access to the vine and the use of any materials available on the farm for the construction. Among the shortcomings, they note the impossibility of forming several fruit vines at the same time, the risk of sagging under the influence of powerful bushes and the need to re-tie the shoots as they grow.
Two Plane Models
Most efficient and practical. This type of trellis can be built in two designs, the first of which is a two-row model, where the rows are located on both sides of the vine. The distance between the modules should not be less than 60 cm.The second design option is two tapestries connected at their base, diverging in the upper part at a certain angle. Thanks to the inclined structure of the support, the sun illuminates the plants well and easily reaches the lower leaves.
The advantages of the two-plane model include the convenience of placing multi-arm bushes with six or more stems, which makes it possible to grow sprawling varieties with a large number of side shoots. The disadvantages of the design are the high consumption of materials during its construction and the problems with sheltering the vines for the winter, but the second situation is quite solvable, one has only to remove the lower wire from the trellis.
An equally important criterion by which grape trellises are divided is the material of their manufacture. Usually, metal or wooden pegs are enough for young plants, while three-year-old shoots require the formation of a full-fledged support.. As a material for supports, wood, metal and reinforced concrete can be used. Moreover, reinforced concrete products must be equipped with holes for threading wire, and wooden poles must be pre-treated with a special compound that prevents wood decay and the appearance of pests.
The optimal tree species for the manufacture of trellises are chestnut and oak. The performance characteristics of acacia are slightly worse, but nevertheless it is also suitable. Steel pipes are used as metal poles. Ears are usually welded to them for attaching the wire, or, as in reinforced concrete, holes are drilled. The height of the pillars is usually from 2.5 to 3 meters, and the thickness is 15 cm.
It is better to take galvanized wire for the construction of trellises: this will prevent sagging and eliminate corrosion.
When and how to tie up?
The first garter of the vine is performed in the spring and is called dry. The procedure is performed immediately after the end of night frosts and before the first buds open. It should be tied very carefully, tilting the branches in a horizontal position to the bottom wire. This arrangement will allow all the kidneys to be in the sun and ensure a good harvest in the future.
The next garter is called green. It is produced several times during the summer. As a material for tying, you can use strips of soft fabric. This will prevent them from rolling into a thin rope and injuring the shoot. The best option is women's nylon tights, which are cut into transverse strips 2 cm wide, forming elastic and soft rings. As the bush grows, the capron will begin to stretch and will not injure the shoot.
The first of the green garters is made when the shoots reach a height of 50 cm and only vertically. Thus, the main vine remains horizontal, and the young fruit shoots are in a vertical position. Such a garter scheme contributes to an even distribution of heat and the formation of bunches of grapes at the level of human growth. In addition, this method does not allow plants to intertwine with each other and makes them more accessible for pollination.
A vertical garter is also used for high-stem and long-sleeved bushes. However, many experienced growers have a negative attitude towards vertical garters and advise placing shoots at an angle of 40-60 degrees.
In addition to vertical and horizontal, the arc method is often used, in which the branches are tilted at a certain angle and fixed. The arc garter prevents damage to the shoots in strong winds. Perennial plants, when planted, are placed at a slightly greater distance from each other, and the garter is carried out in a fan or half-fan. Wrapping the vine with cloth is done in the form of a loop or figure eight and is most preferable at the place where the leaves begin to grow.
Common Mistakes
Very often, novice gardeners make the following mistakes:
- trying to tie the main stem vertically is fundamentally wrong: the main stem must be in a horizontal position;
- the use of fishing line or thin wire as materials for tying is unacceptable - this can lead to a violation of the integrity of the stem and cause the death of the shoot;
- bending all the stems of the bush in one direction is not recommended, they should be divided into two parts and laid in different directions;
- weak tension of the wire between the posts is not allowed; in the process of growth of the shoots, such a wire will sag or break.
In order to tie grapes to a trellis, you do not need to have any special skills. It is enough to strictly follow the rules for performing the procedure, observe the vine and listen to the advice of specialists.
Some methods of tying grapes are described in the video below.