What about the yellowing of pearl plum leaves, control the amount of water / avoid direct light

Pearl plum is a kind of flowers planted all over the world, which is highly ornamental, but if the flowers are not properly maintained, it is easy to have yellowing leaves and other problems, so what about the yellowing leaves? Next, the editor will take you to learn about it.

What if the leaves of Pearl Plum turn yellow

If you want to know what to do about the yellowing of pearl plum leaves, first of all, we have to understand what causes it. There are many reasons for this situation, such as too strong light, too little watering and so on. So how to deal with this kind of situation? It is described in more detail below, and we will move on.

Second, the causes and treatment methods of yellowing leaves of Pearl Plum.

1. Too little watering

Pearl plum is a kind of plant that likes to grow in a warm and moist environment, so the requirement for water is still very high. if it is watered too little in the process of culture, it will cause the leaves of pearl plum to turn yellow. and if the method is not changed for a long time, it will also lead to the phenomenon of plant death.

Treatment: when pearl plum leaves turn yellow due to too little watering, we need to increase the amount of water appropriately. It is best to water thoroughly when watering, but remember not to water too much, because it is easy to accumulate water. this leads to the rotting of the roots of Pearl Plum.

two。 The light is too strong.

Pearl plum is a kind of light-loving plant, if it is in spring and autumn, the light is more suitable, we can let it receive light all day, but in summer, the sunshine will be more intense, if it is exposed outdoors for a long time, it will cause the leaves of pearl plum to turn yellow.

Treatment: when the summer sunshine is strong, especially at noon, we can move the pearl plum to the indoor semi-shade for breeding, so that it will not be short of light, nor will it turn yellow because of the strong light.

3. Lack of iron

In the process of breeding pearl plum, if there is a lack of iron or other elements, it will also lead to the yellowing of pearl plum leaves, which is due to the lack of growth elements, which will lead to the loss of green leaves.

Treatment: if the leaves are yellowing due to iron deficiency, we can apply an appropriate amount of compound fertilizer or minerals in the soil to supplement the loss of various growth elements, so as to prevent pearl plum leaves from yellowing.

4. Diseases and insect pests

Pearl plum in the process of growth, if not properly maintained, it is easy to have diseases and insect pests and other problems, which is also the main reason for the yellowing of pearl plum leaves, many diseases and insect pests will lead to this phenomenon at the beginning, if it does not come out for a long time, it will also lead to plant death.

Treatment method: when Pearl Plum appears diseases and insect pests, we must deal with them in time, but because the treatment methods of all kinds of diseases and insect pests are different, the editor will not introduce them one by one here. Friends who want to know can refer to the article on pest control of Pearl Plum.

Cultivation of miniature triangular plum

"miniature triangular plum cultivation"

Miniature potted plants are small in size, exaggerated and concise in shape, and embellished with more poetic and picturesque balconies, bedrooms and windowsills. Using triangular plum as miniature potted material, it takes only five or six months from cuttage propagation to embryonic form and flowering. Triangulated plum is strong in nature, resistant to high temperature and hot sun, no special treatment for micro-basin cultivation in summer, less diseases and insect pests, rough imitation and easy maintenance. Triangular plum flower color, varieties of leaf color is changeable, branches are easy to twists and turns shape, the production of miniature potted plants can have flowers, no flowers, no leaves, no leaves, with strong ornamental. Today, we will communicate some experiences of triangular plum miniature potted plants with flower friends. 1. Select the basin: choose the miniature basin below 10cm, especially those with 6-8cm small and exquisite. Purple sand basin, ceramic basin can be, small plastic basin or special style ice cream, yogurt chocolate plastic box is also OK. The appearance and color of the basin should echo the tree posture, leaf color and color of the triangular plum. For example, the high barrel basin is suitable for cliff and semi-cliff type; the long waist oval and rectangular pots should be planted with straight and oblique poles; the round pots are equipped with low-shaped plants with curved plates; and the high rods of polygonal pots produce plants with thin vines and sparse branches. Light and elegant pot plant colorful varieties, dark and dignified pot varieties of light flowers. 2. The use of soil: the micro-basin has small volume, strong growth potential, large number of flowers, large demand for water and fertilizer, and fear of waterlogging, so it must be a sandy loam with loose fertility, good drainage, good fertilizer and water conservation, and rich in humus. Such as rotten leaf soil + sandy loam soil, can also be prepared with peat + perlite + garden soil, requiring no stagnant water in the heavy rain basin, no hardening in the sun, and moist in the surface aluminous soil. 3. Select varieties of Qinhua, mosaic and plant shape that are easy to control, such as double red, Yijin, orange yellow; mosaic red, silver edge white; single green leaf water red, orange red, cherry red, etc.; generally can bloom 2-3 batches of flowers a year in Hangzhou. 4. Cuttage propagation and selection of seedlings: miniature potted Prunus mume can propagate quickly and conveniently with cuttings. In Hangzhou, the selection section is short from May to June, the diameter is 0.3-1cm annual Lignification or semi-Lignification branches, the cuttings are 6-8cm with 3-4 nodes, the front two leaves (or half leaves) are retained and inserted into the substrate after sterilization, moisturizing and light maintenance, fertilization outside the root for about 20 days, and strong light exercise gradually after rooting. After cutting for 45-60 days, a small amount of matrix was moved into the micro-basin as early as possible, and the seedlings were delayed for 2-3 days to enter the routine management. Miniature triangular plum seedlings can also directly look for small stakes of perennial dwarf branches, pruning roots and pruning on the basin, and can also be obtained by bagging and high-pressure propagation of zigzag old branches. 5. Objectives and measures of Prophase maintenance. Prophase maintenance is the foundation, and the goal is to shape and cultivate the crown. All measures are carried out around the dense branches, compact plant shape, concise and smooth shape. Twists or folds do not deliberately pursue twists and turns, the general trunk 1-2 bends, there are 2-3 branches can. There should be more branches and leaves than other woody miniature potted plants, but they should not be too complicated to facilitate the overall balance of metabolism; plant type pictures should be designed according to the original characteristics of pots and materials, branches and leaves trend and layout should be emphasized, so that branches and leaves are dense and orderly. The crown is about 1.5 times of the basin diameter. A, watering and fertilization: the basin is small in volume and less soil, avoid heavy water and thick fertilizer, the soil should be dry, not dry and not irrigated, sunny spring, late autumn in the morning and morning, early summer and early autumn in the morning and evening, small water and moist soil in the evening, the leaves can get rid of wilting and water thoroughly in the morning. Fertilizer should be mixed with some thin fertilizer water in the irrigated water at intervals of three to five, mainly nitrogen in the first few times, supplemented by phosphorus and potassium, and then dominated by phosphorus and potassium. In order to prevent Rain Water from growing too much, if you have the conditions, you can keep it under the sun and canopy. B, coring, pruning and pruning: determine the timing of topping according to modeling needs, generally 4-5 leaves can be peeled to depress the height of the plant and lower the branching position. After the formation of the primary branch, it is coring again to form the secondary branch. Plate binding should be early, planting to restore growth can be carried out, with a diameter of 0.6-0grad 8mm aluminum wire inserted into the soil, the other end and the branch into a 45-degree angle spiral winding, from the trunk to the twig, from bottom to top; when winding the aluminum wire should be close to the trunk, density moderate, after winding the branch will bend into the desired form, and finally with the aluminum wire to press the top leaf axil, to promote the twig node elongation to form a natural twig, disk binding should be carried out with the branch growth in a timely manner. Plastic bandage can also be used to bind thicker aluminum wire with twigs and then bend the shape. In the growth, branches are too long, but also timely appropriate pruning, short, back pruning, to promote re-branching, at the same time cut off overlapping branches and other redundant branches. C, spray short Zhuangsu: new branches are produced, starting to spray 5/1000 for a long time, once every 7-10 days. If 20-50PPM paclobutrazol is sprayed, the dosage should be controlled and the interval time should be prolonged. D, triangular plum is a strong positive plant, heat-resistant and not afraid of the sun, should be maintained under direct light, generally without shade. The semi-cliff of the cliff can be tilted, placed upside down, when the branches and canopies are initially formed, some flower-promoting measures should be taken, such as opening the basin distance, raising the ventilation, increasing the application of phosphorus and potassium fertilizer, controlling the amount of watering, continuing to control the plant shape, and so on. 6. Florescence management: after planting for about two months, the bud may appear, then the disk binding is suspended, one branch, 3 or 4 inflorescences of double-petal varieties and 6 or 7 inflorescences of single-petal varieties. Concentrate nutrition to make double flowers bloom into balls, single flowers large and colorful. In order to prevent serious wilting, a small amount of water can be replenished at noon, and the water temperature should be close to the soil temperature. 7. Post-anthesis management: the miniature potted plum can blossom in three batches a year, and the new plants cultured by cuttings in May may also bloom twice in the same year. After flowering, it is necessary to cut back and truncate in time to maintain the plant type so as not to overgrow the branches; to apply thin fertilizer and water dominated by nitrogen and supplemented by phosphorus and potassium; to fasten new branches as early as possible, spray Daizhuangsu, and so on. 8. Overwintering: the basin is slightly affected by external temperature changes and is vulnerable to cold damage in winter. it is appropriate to put indoor sunny windowsill or warm cabinets, and strive to be no less than 8 degrees. In case of cold fallen leaves, it is appropriate to keep the basin soil dry, let it dormant, and pour a small amount of lukewarm water on the edge of the basin when it is too dry. If the temperature is high, the sun does not shed leaves, and it can blossom normally, it needs normal maintenance and management. 9. Later maintenance: micro-basin planting for 1-2 years, turning over the basin, changing soil, pruning, or local soil replacement, lifting roots, and taking measures to make the main rod aging. After a year of maintenance, the prototype has emerged, and the transition from ordinary miniature potted plants to artistic potted plants and miniature bonsai requires years of pruning as the main and supplementary modeling process.

Phalaenopsis is a tropical epiphytic orchid with a single stem of Orchidaceae, with erect thick stems up to 8 cm high and broad and soft fleshy leaves alternate. There are aerial roots between the lower leaves of the stem, and when cultivated, the surface of the culture soil is also covered with similar roots, so the roots are required to be well ventilated. The pot substrate is generally collected from the root, water moss, bark block, coconut shell block, etc., as long as it is a well-drained pot substrate, the most commonly used is the root of fern Osmunda Osmunda. Dry the root, cut it into 5 cm long segments, and then add some rotten leaf soil or peat and mix it with coarse sand or perlite. However, fern roots are not easy to get in the north, so they can only be bought in the flower market, so they usually use bark and small moss. Bark block had better be cut up with Chinese fir bark, generally 2 parts of broken bark and 1 part of peat moss, can also be mixed with a little coarse bone powder. Water moss should first be soaked in water, then squeeze out the excess water, and then mix with some coarse sand, perlite, broken bricks (stones) and so on.

If Phalaenopsis is planted in an ordinary basin, it is generally better to use a porous basin, and a shallow basin should be used for breathability. the height of the basin is preferably less than the diameter of the pot. it can also be planted in a basket made of wood or wire, or in a basket made of wood or wire. tied to the stem of a branch or tree fern. Flowerpots generally put half a basin of broken tiles to facilitate drainage. If a hanging basket is used, a thin layer of peat moss must be laid at the bottom of the basket to prevent the loss of soil from the wood strips or meshes. Generally speaking, Phalaenopsis needs to be changed every year. When the root system of the plant begins to grow again (usually in spring), it is the most suitable time to change the pot. Using water moss as the cultivation substrate can last for a year, so the basin needs to be changed once a year. Whether it is potting or changing pots, the new plants should not be watered immediately. For the first three or four weeks, leaves are usually sprayed only once a day. Changing the pot is very important in the cultivation and management of Phalaenopsis, otherwise the air permeability will become worse due to the aging of the cultivation substrate and the decay of the water moss, which will cause the root system to grow out of the basin, and in serious cases, it will cause root rot, plant growth decline and even death. In cultivation, if it is found that the growth of individual plants is weakened, or the pot substrate is rotten and impervious, the pot can be changed at any time to restore its growth potential.

Phalaenopsis generally needs a stable warm and humid environment all the year round, even during a short dormant period. The most suitable temperature is 25 ℃ to 28 ℃ during the day and 18 ℃ to 20 ℃ at night. It should be noted that Phalaenopsis is very sensitive to low temperature and stops growing when it is kept for a long time at 15 ℃. Under 15 ℃, Phalaenopsis stopped absorbing water, which led to physiological lack of water, leaf yellowing and shedding. After a long time, the whole leaf was stripped off and the plant died. Due to the high humidity in the origin of Phalaenopsis, the humidity of Phalaenopsis cultivation should be kept at 70% to 80% throughout the year. Can spray water to the leaves once a day, it is best to use spray, do not let water droplets stay on the leaves of Phalaenopsis, if left on the leaves overnight, there will be black spots on this part. Secondly, Phalaenopsis likes a well-ventilated environment, avoid muggy, poor ventilation is easy to cause decay, resulting in weakening of seedling growth and disease. Phalaenopsis needs bright warm light all year round, and it is generally necessary to avoid strong direct light.

The latest information

Family cultivation of Phalaenopsis

Mulan Center of "Plant Panda" settled in South China Botanical Garden in 2009, fashionable flowers for home decoration are popular. Yunnan ranks first in the number of new flower varieties in the country.