Cultivation method of five-color plum

Five-colored plum is not called Shan Dadan, Ruyi grass, colorful flowers, Wuledan and so on. It is an evergreen shrub of the genus Lantana of Verbenaceae. The general flowering period is about mid-April and late April to mid-February of the next year. However, due to the influence of climate and temperature, flowering can be seen almost all year long, and the ornamental value is very high. Let's take a look at the breeding methods of five-colored plum.

The Culture value of Prunus mume

1. Viewing: the five-color plum green trees are full of flowers, which are gorgeous all the year round, with a long flowering period and beautiful colors, such as red, orange, yellow, pink, white and so on. Some flowers are yellow or pink at the beginning, gradually turn into orange or orange, and finally become red. The flowers are small and chic, appear to be very beautiful and have a certain ornamental value.

2, bonsai: five-color plum twigs are soft, suitable for making various forms of bonsai, can be processed into single-dry type, double-dry type, water-facing type, oblique dry type and other different forms of bonsai, which is also suitable for home decoration. Due to the large leaves, the crown is often natural and unrestrained, and can also be deliberately tied into a round shape.

The Propagation method of Prunus mume

1. Sowing: sowing can be sowed in pots with high humidity and temperature at the end of autumn, or in spring. Sowing seedlings in South China can be used to plant flower beds, and flowers can be seen in September of that year. After the fruit is ripe, it is picked and retted, soaked in water and scrubbed to remove the pulp, and the seeds are obtained. To avoid losing water, seeds can be sowed with picking in autumn, or stored in mixed sand, and sown again in spring. The temperature should be kept above 20C in the germination stage after sowing. The germination rate is about 60%, and the seedlings sown in the south can blossom in autumn.

2. Cutting: cuttings are carried out more than May, one-year-old branches are taken as cuttings, every two sections are divided into one section, two leaves of the upper section are retained and cut off half of them, and the lower section is inserted into the matrix of plain sandy soil or fully mature humus soil, shading, film moisturizing, heat preservation, keeping the cutter moist and air humidity at 80% 90%, about 1 month to root and sprout new shoots.

3. Striping: the five-color plum plant has many branches and takes root on the soil, so the flexible branches are cut and pressed into the soil, and the roots will be cut off after the root system grows.

Culture methods of Prunus mume

1. Fertilizer and water: loose and fertile sandy loam is suitable for potted soil, and the requirements are not strict. During the growing period, rotten liquid fertilizer is applied every 10 days, combined with watering, and 3% urea is sprayed twice every 10 days, which can make the leaves thicker and greener. When planting, organic fertilizer is applied as base fertilizer, and initial watering is used to promote growth. when it survives and grows vigorously, irrigation can be reduced, and vine branches can be buried in the soil in open field cultivation, which can be gradually expanded into a large clump.

2, sunshine: five-color plum like the sunny environment, the growing season can be placed in the outdoor sunny place to maintain, even in midsummer also need not shade, but requires good ventilation. If the light is insufficient, the plants will grow too long, the stems and branches will be thin and long, and the flowering will be rare, which will seriously affect the ornamental plants.

3. Pruning: the five-color plum grows fast. The branches and leaves that affect the shape should be cut off in time in order to keep the tree shape beautiful. The overlong twigs should be cut short after each flower, and the plants should be re-cut at the end of autumn and the beginning of winter before entering the house. Cut the branches of the current year properly. If the room temperature above 15 ℃ is maintained in the sunny part of the room in winter, the plant can grow and blossom normally, and it should be watered, fertilized and pruned properly. If you can not maintain such a high temperature, control watering, stop fertilization, so that the plant dormancy, more than 8 ℃ can safely survive the winter. Turn the pot once every spring, and trim the plant again, cutting off dead branches, weak branches and other branches that affect the shape of the tree.

Disease and Pest Control of Prunus mume

1. Grey mold

[symptoms] the pathogen first invaded from the tip of the petals, and after the disease, the disease was waterlogged, soft, faded, lost luster, and finally the petals became brown and rotten, and the flowers fell off. Under moist conditions, a gray mildew layer is formed on the surface of the disease.

[route of transmission] the pathogen overwintered on the remnant of the diseased plant by sclerotia or mycelium. The following spring produced tractors, spread by wind and rain, infection harm, low temperature and high humidity, poor ventilation, conducive to the development of the disease. The disease occurs more frequently in greenhouses.

[control methods] paying attention to ventilation and reducing humidity can reduce the occurrence of diseases. Timely removal of flowers, concentrated burning or buried in the soil, in order to reduce the source of the disease. At the initial stage of the disease, you can spray 200 Bordeaux solution, or 2000 times of 50% Sukeling wettable powder, or 1500 times of 50% Prohydantoin wettable powder, once every two weeks, depending on the incidence.

2. Leaf withered nematode

[symptoms] after the leaves were invaded by nematodes, the leaves became lighter and had light brown spots, and then gradually deepened to almost black. With the enlargement of the lesion, it becomes an angular spot due to the limitation of the host and lateral veins. In severe cases, the whole leaf withered, rolled up, and drooped along the stem. Most nematodes are in slightly discolored areas, and there are only a few nematodes on the leaves that have turned dark brown or black.

[route of transmission] Leaf withered nematodes overwintered on newspaper and surrounding soil, diseased plant residues and wild hosts. Even on the smallest residual leaves, they can survive in the soil for 6-7 months. The whole development process of leaf withered nematode was completed in the affected tissue, and when the condition was suitable (22 ~ 25 ℃, sufficient humidity), it was only 14 days from egg development to female adult oviposition. It is generally transmitted through contact with water droplets, irrigation water and diseased leaves, and long-distance transmission of diseased leaves, flowers, stems, cuttings and soil. Invade the stomata from the leaves.

[control methods] strengthen quarantine to prevent leaf nematodes and their reproductive materials from being introduced into disease-free areas. To prevent and control potted soil in horticulture, diseased soil and grassy soil should be prohibited, watering methods should be improved, it is best not to be drenched, and the leaves should be kept dry as far as possible, and potted flowers should be placed with appropriate gaps to prevent leaves from touching each other. 15% aldicarb granules can be used for chemical control, 5 grams per square meter of basin soil, or 2 grams per square meter of basin soil with a diameter of about 25 centimeters. Or use 3% carbofuran, 3 to 5 grams per basin deep into the soil. It can also be foliar sprayed with 1000 times of 50% fenitrothasone emulsion, 50% permanent ester and 50% carbaryl wettable powder during the hazard period.

Note: the breeding method of five-color plum is introduced here by the editor. When you breed five-color plum, you should pay attention to the poisonous flowers and leaves, which will cause diarrhea and fever, but as long as we understand their living habits and take certain measures, it will not endanger health, but will only be beneficial to the human body.