How to prune plum trees

Plums taste sweet and sour, the flesh is crisp and delicious. Plum is also a kind of special nutritious fruit, which can not only delay aging, but also promote digestion, diuresis and blood pressure. Plum trees are liked to be planted in many places, so how to trim plum trees?

How to prune plum trees

1. Young trees just hang fruit: plum branches grow quickly after germination, and can grow for 2 or 3 times in a row, one is to expand the crown, the other is to bear fruit, and the plum tree bears fruit with short fruit branches and bouquets of fruit branches. The use of moderate growth should be long, and all the branches will droop, ease the growth potential, and promote the formation of short fruit branches and flower-like fruit branches. Leave a long branch every 30 centimeters on the main branch. When it is too dense, it is necessary to remove some branches to facilitate ventilation and light. Coring the exuberant new shoots in time or using short cuts to control their growth to promote multiple short fruit branches or bouquets of fruit branches.

2. Full fruiting period: with the increase of fruit yield, the growth potential of branches is relaxed due to fruit pressure, winter shears are mainly sparse, try to make branches every 30 cm, and then promote them to sag, and then form flowers and short fruit branches. Cut off dense branches, disease and insect branches and cross branches from the base. Leave a part of the space when it is large, and cut it short so that the space is not empty, the same result. There are a large number of fruiting branches in the full fruit period, so the weak ones should be cut off and the strong ones should be left; the old branches should be cut off and the new branches should be left. Re-cut the bunchy fruit branches to stimulate better fruiting branches. For many years of growing branches that occupy large space, the formation of upper flowers has been reduced, and it is necessary to retract and prune to stimulate the issuance of new long branches to form better young and strong fruiting branches.

Summer pruning method

Summer pruning refers to pruning in the growing season, which is generally carried out from mid-June to early July.

1. Pick the heart. The growing point of branches should be removed during the growth period, and the specific time should be determined according to the variety, cultivation conditions and purpose.

2. Twist the tip. The tip of the new shoot is sprained, but it is not broken. Generally valuable overgrown branches can be used to restrain their growth. Twisting should be carried out when the growth length of the new shoot is long enough, and the sprained site should be in the semi-Lignification area.

3. Girdling. When the new shoots nearly stopped growing, the trunk or branches of prosperous trees were peeled in a ring, and the peeling width was about 1 × 10 of the diameter of the strips, and the flower-promoting effect was obvious.

4. Take a branch. Hold the middle and lower part of the branch with your hand and hold it repeatedly, so that the branch tissue is damaged and grows horizontally or obliquely.

The application of each measure of summer pruning should grasp the correct time and implementation object (young trees or prosperous trees that do not bear fruit), and remove overgrown, sprouting and withered branches during summer pruning.

Distribution range of plum trees

Produced in Liaoning, Jilin, Shaanxi, Gansu, Sichuan, Yunnan, Guizhou, Hunan, Hubei, Jiangsu, Zhejiang, Jiangxi, Fujian, Guangdong, Guangxi and Taiwan. Born in thickets on hillsides, in sparse forests in valleys or by water, ditches, roadsides, etc. 400-2600 meters above sea level. It is cultivated in all provinces of China and all over the world, and it is one of the important temperate fruit trees.

Pest control

In order to control bacterial perforation disease, plum trees can be sprayed with fungicides such as carbendazim and carbendazim. The most important pest is the white star beetle, which likes to eat fruits with wounds, so we should pay special attention to the prevention and control of the white star beetle. There are three ways to control white star beetles:

1. Sunflower trapping method

In the orchard, we planted 8 to 10 sunflowers per mu, using the fragrance of sunflowers to attract them. Every morning, we used a bag to cover the sunflower disk and hit it, so that the adults fell into the bag, and then concentrated killing.

2. The method of inducing and killing with fruit vinegar

Take advantage of the white star beetle's preference for fruit vinegar. The preparation method of fruit vinegar was as follows: 1 part of ground fruit, 1 part of vinegar, 2 parts of sugar and 0.5 part of water. The ground fruit is chopped, mixed with vinegar, sugar and water, boiled into porridge, put into a jar (half a bottle can), then add half a bottle of dichlorvos 500 times liquid to mix well. During the peak period of adult occurrence of Baixing beetle, a bottle was hung every 20 to 30 meters in the orchard, with a height of 1.2 to 1.5 meters above the ground. The bottle should be close to the branches and get rid of the white star beetles and dead insects every morning.

3. The method of luring insects by insects

In the orchard, according to the standard of hanging 6 to 8 beer bottles per mu, hang the beer bottles about 1.5 meters above the ground, and catch two or three live white star beetles into the beer bottles, which will lead other adults to fly into the bottles.

Through the above, I believe we all know the pruning method of plum trees. Pruning plum trees in time can make plum trees more healthy and luxuriant and prolong their life. Plum trees not only have a certain economic value, but also have high ornamental value. Plum tree flowering season, pure white florets blooming, spectacular and beautiful!