How to prune pear trees in summer? What skills do you have?

Pear tree is one of the common fruit trees in orchards. In order to increase yield, pear trees are usually pruned in summer to prevent overgrowth. In the process of pruning pear trees, no matter which pruning method is adopted, it is necessary to pay attention to its comprehensive response in order to achieve the desired goal. So how to prune pear trees in summer? What skills do you have?

1. Pull the branch and open the angle

Branch opening pruning is to adjust the excess paper in the tree by pulling branches to make it evenly distributed, increase the space, improve ventilation and light transmission conditions, and pull branch opening angles are conducive to flower bud differentiation and early fruiting. Branch pulling is usually carried out in the first and middle of June, when the spring shoot growth slows down or stops growing. For the over-prosperous upright branches, the methods of pulling and falling branches are adopted to ease their growth potential, promote flower buds and have a significant effect on early fruiting, which is a traditional Chinese medicine measure for pear tree pruning in summer.

2. Thinning branches and wiping buds

Thinning and sprouting refers to cutting (wiping) the overdense strips of paper from the base during the growing season. Pear trees have high sprouting rate and weak branching ability, and most of the crowns are sparse, so it is necessary to keep more branches and less sparse branches. for growing branches, it is very beneficial to use the method of branch opening and pruning to ease the growth, and to use more retraction pruning.

3. Pick the heart

Coring refers to the removal of the top 1-2 leaves when the new tip grows to a certain length. Coring will have different effects in different periods, such as young trees with exuberant growth, from late May to early June, when the new shoots grow to 30-40cm, which can promote the growth of secondary shoots, accelerate shaping, reduce the amount of pruning, ease the tree potential and lay the foundation for early fruit. In August, the coring of new shoots before stopping growth can promote the development of new shoots, which is conducive to safe overwintering. In order to promote the secondary branch germination of the new shoot as soon as possible, the first two leaves of the wound should be removed at the same time, so that the axillary bud can germinate quickly and the secondary branch can be extracted quickly.

Pear trees should be picked at the right time, if the heart is picked too early, it will stimulate the germination of a large number of useless secondary shoots and consume nutrition; if the heart is picked too late, it will not achieve the desired effect.

4. Adjust the angle of branches

Pear branches are more erect and brittle, not easy to open, bone branches are more open after the full fruit period, and the branches are easy to droop. Therefore, the crown of most pear varieties is conical, which affects the early flowering and fruiting, so it is necessary to open the main branch angle as soon as possible. However, because the pear tree has strong trunk and large opening angle, it is easy to concentrate the growth advantage on the middle trunk, which weakens the growth potential of the elongated branch. therefore, the angle of the main branch of the pear tree should be smaller than that of the apple tree, and the angle of the main branch should be between 45 °and 55 °. The maximum should not exceed 60 °. The main methods of opening angle are pull, brace, fall, tie and so on. With the increase of tree age and yield year by year, the crown opens gradually. In the later stage of Dasheng fruit, the angle of the main branch increases, its first end is easy to sag, and the angle of retraction and pruning is too high.