What is the cause of the reticulated appearance of bonsai banyan leaves?

The phenomenon should be red spider, red spider is a stinging and sucking pest, on the surface of the plant web, breeding, adjacent leaves spread quickly, the infected leaf gradually becomes spotted and finally becomes pale, uncontrolled the whole plant withers to death.

The main cause of the disease is poor ventilation. Prevention and control methods. Soak the tobacco half heel in 200ml of water, wait for the water to turn brown, wipe the leaves and stems of the plant with a clean cloth dipped in smoke water, and pour the remaining smoke water into the potting soil after wiping.

After two days, spray the leaves and stems with water, and if there are still cobwebs, spray them with laundry detergent and smoke water at the same time, preferably between 10 and 11 o'clock during the day. Be careful to put it in a ventilated place!

The yellow spots on the leaves of the banyan tree are caused by an environmental factor that affects the leaves of the banyan tree due to their low resistance, forming yellow spots. Specifically, it is caused by environmental factors such as ultraviolet rays, high temperatures, and high humidity.

1. Ultraviolet rays are a kind of high-energy electromagnetic waves, which are radiated by the sun, and when ultraviolet rays shine on the leaves of the banyan tree, it will cause the decomposition of chlorophyll and make the leaves yellow.

2. The temperature on the earth's surface has been rising, so the leaves of the banyan tree will also be affected by the high temperature, making the leaves yellow. The higher the temperature of the leaves, the lower the resistance of the leaves, and when the leaves are affected by high temperatures, yellow spots appear.

3. Humidity is also an important reason for the yellow spots of banyan leaves. When the humidity in the air is high, the resistance of the leaves decreases, and too high humidity can cause the leaves to turn yellow, which leads to the development of yellow spots.

The yellowing and falling of the leaves of the banyan tree is caused by improper planting and watering, environmental discomfort, excessive temperature or improper fertilization.

The banyan tree is also known as evergreen, and is often planted as a bonsai, so what is the reason why the leaves of the banyan bonsai are yellow and fall off the leaves when planting. Banyan tree has strict requirements for water, improper watering will cause the leaves of the plant to yellow and fall, and the banyan tree can be watered according to the principle of seeing dry and wet when mastering the amount of watering.

Precautions and key points of banyan bonsai:

If the indoor temperature is too high in summer, the leaves of the banyan tree will turn yellow and fall, so the plant needs to be transplanted to a semi-shaded and ventilated environment for a period of time, and the plant will return to its original state in a week. The temperature is high in summer, so it is necessary to take cooling measures when breeding, and to properly shade the plants at noon to prevent the plants from being sunburned.

Banyan trees like fertilizer, but improper fertilization during breeding will make the leaves of the plant yellow and fall, when breeding banyan trees, you can apply rotten manure and fertilizer to the plant, do not apply fertilizer and raw fertilizer with high concentration, if the amount of fertilizer is not clear, you can dilute the fertilizer with water before each fertilization and then apply it, and you can also fertilize it in accordance with the principle of a small amount of times at ordinary times.

Possible causes of macular appearance in leaves are:

1. Water yellow: the young leaves are dark yellow and dull, and the old leaves have no obvious changes. Indicates overwatering. Depot the flowers, put them in a ventilated and cool shade, blow dry the sensitive soil and then put them back into the pot.

2. Dry yellow: the leaf tips or edges are withered and dry, and the old leaves are withered and yellow from the bottom to the top, but the growth of new leaves is relatively normal. Pay attention to watering when watering enough, water thoroughly.

3. Burning and yellowing: strong direct sunlight is easy to cause leaf tips and leaf edges to wither, and yellow spots appear in the sunny part of the leaves. Move to the pubic area.

4. Lack of light yellow: If the environment is shaded for a long time, the leaves cannot get enough sunlight and cannot form chlorophyll, and the whole leaves turn yellow and then fall off, and supplemental light can avoid this disease.

5. Fat yellow: too much fertilization or excessive concentration causes yellowing, which is manifested in dry brown at the top of the new leaves, and the old leaves are scorched and fall off. Fertilization should be stopped immediately, and part of the fertilizer should be washed with plenty of washing in severe cases.

6. Lack of fat yellow: It is manifested in the color of young leaves becoming lighter, yellow or light green, while old leaves are more normal or gradually turning from green to yellow. Check the potting soil, if there is a dry knot phenomenon, the soil should be replaced, and pay attention to the application of thin fertilizer.

The reason for the yellowing of the leaves of the banyan potThe humidity is high

Unreasonable water damage to the banyan tree is very large, too much watering, or the relative humidity of the air is very high, which will cause the root system of the banyan tree to rot, resulting in large-scale leaf death. Banyan trees in the northern region of the breeding of the difficulty coefficient of breeding, at home to manipulate the environmental humidity, the environmental humidity is too low will also lead to yellowing.

The temperature difference is large

The banyan tree is suitable for growing in an environment with a small temperature difference between day and night, and the environment of wearing a leather jacket in the morning and a yarn in the afternoon like Xinjiang is not suitable for the growth of the banyan tree. When the temperature difference is above 10, large-scale yellowing and black leaves will occur. Therefore, in the normal maintenance process, it is necessary to put the potted plants in a ventilated and transparent position, and pay attention to shade in summer.

Lack of sunlight

Banyan grows in an environment with abundant sunlight, if it can be shaded by 30-50% during the high temperature weather period, the color of the tea leaves is more emerald green, but when the temperature is less than 32, it is best not to shade the light, in case the leaves fall off.

Improper watering

Watering too much will cause water yellow, long-term less water will be dry yellow, these two conditions will lead to banyan tree leaves, so banyan tree watering must be unremitting not dry and not watered, watering is the standard of watering, the drying here refers to the surface of bonsai soil drying, not bonsai soil drying, naturally even if it is dry, it will not cause very large damage to the banyan tree in the short term, because the leaves of the banyan tree are thick and small, there is a certain drought tolerance.

Improper fertilization

Excessive fertilization of banyan trees will cause fat yellow and lose leaves, lack of fertilizer will also make yellow leaves green to yellow, so it must be carried out in the way of thin fertilizer diligent application, to prevent the use of organic fertilizer with higher concentration or organic fertilizer without mellow fertilizer, otherwise it will cause fertilizer damage, light or dead leaves, heavy death.

The newly bought banyan potted plants shed leaves may be the banyan tree itself is not physically and mentally healthy, or buy back is not suitable for the new environment, therefore, when purchasing, you should choose a potted plant with leaf stretch, dense and bright, and the whole plant without disease and physical and mental health, and the bonsai soil should be loose and rich and breathable, and after buying back, it should be placed in a brighter room, or in the courtyard, the temperature is between 10 °C and 30 °C and the change range is not large, not less than five degrees in winter, not more than three or five degrees in summer, and pay attention to ventilation, often sprinkle water on the leaves, etc.

In addition to the above types of conditions, there is also a very likely, that is, the banyan branch or root system damage, the branch can depend on the condition of the decision whether to cut or not, and the root system can only find a way to make the wound heal as soon as possible, before the wound of the root system is not completely healed to fertilize it, the root system can not only not digest and absorb, too concentrated chemical fertilizer will continue to drive the water in the root somatic cells to flow backwards into the cultivation medium.

It is likely to be caused by insufficient light, unsuitable temperature and environment, and may be due to insufficient fertilization, insufficient soil fertility, or lack of timely watering.

The leaves of the potted banyan tree are yellow and deaf, probably because of insufficient nutrition, resulting in yellowing of the leaves.

It may be that there is too much watering, or it may be due to the weather, and you should check online in this case.

1. Reasonable watering: Reasonable watering can promote the normal growth of the collapsed stove of the banyan tree, if too much water is added, it will cause water accumulation in the roots and cause the leaves to turn yellow, and too little watering will also cause the leaves to turn yellow due to drought. Therefore, it is best to water the banyan tree in accordance with the principle of seeing dry and wet, so as to avoid water and rotten roots, and also avoid lack of water and yellow leaves.

2. Correct fertilization: Wrong fertilization methods will cause the leaves of the banyan tree to turn yellow. Banyan trees that have not been fertilized for a long time will turn yellow due to lack of nutrients.

If the fertilizer is applied excessively, the concentration of the fertilizer solution will be too large, which will cause the roots to burn, causing the leaves to turn yellow. Therefore, when we fertilize, we must pay attention to the instructions for the use of fertilizer, and the solanum height is fertilized in accordance with the usage method and reasonable amount, and the fertilizer can not be excessive, and we need to regularly use some fertilizer to supplement nutrients for the banyan tree. Urea or potassium dihydrogen phosphate can be used to supplement the fertilizer.

When fertilizing excessively, it is necessary to use a large amount of water to irrigate the roots and dilute them.

3. Plant root rottenness: The phenomenon of root rot will lead to the obstruction of nutrient and water transmission, which will cause its leaves to turn yellow. Root rot is usually caused by stagnant water, fertilizer damage or bacterial infection.

Once the roots are rotten, we need to remove them from the soil in time, thoroughly prune off the roots that have rotted and blackened, and then apply carbendazim to the wound to disinfect, and then repot and replant.

4. Pests and diseases: Many plants will cause rotten roots or yellowing of leaves due to the invasion of pests and diseases. If insect pests occur, we need to kill the insects in time, usually the insect pests that harm the banyan tree are red spiders and scale insects, etc., we can use drugs such as flower protectors to prevent and control.

If the leaves are yellowing caused by the disease, we need to buy special drugs for prevention and control. If the roots are rotten, the rotten roots must be treated and then replanted.

The yellowing of the leaves of the banyan bonsai may be caused by improper watering, and the soil is prone to water accumulation due to large amounts of water, which affects the respiration of the root system and thus falls off the leaves.

If you don't water for a long time, the soil will be dry, and the leaves will fall off. Attention should be paid to appropriate watering and keeping the soil slightly moist during the growing season. It may also be improper fertilization, the concentration of fertilizer will burn the roots, and the leaves will fall.

Long-term lack of fertilizer and nutrients, the plant can not absorb nutrients, and the leaves will also yellow, so we should pay attention to scientific fertilization.

Over-fertilization can also lead to root rot or germs that have been soaked for too long. When we encounter rotten roots, we cut them off with scissors, disinfect them with a plant disinfectant, and then replant them. In the process of daily maintenance, if it is found that the banyan tree has insect pests, it is necessary to use medicine in time, and insects are also the main factors that cause the yellow leaves of the banyan tree to fall off.

It is also effective to spray the leaves with 500ppm oxide dimethoate or 1000 times the solution of 50% gum sulfon wettable powder, and it is also effective to use washing powder water or wind oil essential water.

Maintenance of banyan bonsai

1. Fertilization: The demand for fertilizer in different periods of banyan growth is not the same, summer and autumn are the growth period of banyan trees, which require more nutrients, it is recommended to fertilize once a month, and you can fertilize less or no fertilizer in winter. When fertilizing, pay attention to burying the fertilizer into the soil along the edge of the flower pot, and water it immediately after fertilization, the main components of the fertilizer are nitrogen, phosphorus and potassium.

2. Pruning: Banyan bonsai is resistant to pruning, the most suitable season for pruning is early spring, and the new branches can also be pruned appropriately during the usual maintenance process. Trimming it to your favorite shape can greatly enhance its ornamental value.

3. Light: Banyan tree is a sun-loving plant, if it is in a dark place for a long time, no light, it is easy to cause the bonsai to fall yellow leaves, and if it is serious, it will directly cause the plant to die, you can place the banyan bonsai in a sunny and ventilated place. It is important to note that although the banyan tree is a sun-loving plant, the sunshine situation also needs to be adjusted according to the season, and the sun is strong in midsummer, so it should be properly avoided from the scorching sun to ensure the normal growth of the banyan bonsai.