Causes of yellowing of Phyllostachys pubescens leaves and its treatment

1. Overwatering.

The basin soil is too wet for a long time, which causes anoxia in the soil, causes some fibrous roots to rot, hinders normal respiration and absorption of water and nutrients, and causes leaves to turn yellow and fall off. After the injury, the young leaves turn pale yellow, and then the old leaves gradually turn yellow. watering should be controlled immediately, fertilization should be suspended, and the soil should be often loosened to make the soil well ventilated.

2. Drought and dehydration.

Flower cultivation leakage watering or long-term watering half waist water (that is, upper wet and lower dry) will affect nutrient absorption, and it is also easy to cause dull and dull leaves and drooping leaves. First, the lower old leaves aged, and gradually withered and yellowed off from the bottom up. At this time, a small amount of watering and spraying is needed to gradually recover and then turn to normal watering.

3. Lose weight for a long time.

There is no application of ammonia fertilizer or no change of soil for a long time, and there is a lack of nitrogen and other nutrients in the soil, resulting in thin branches and leaves and thin and yellow leaves. It is necessary to pour the pot in time and gradually apply rarefied mature liquid fertilizer or compound flower fertilizer into new loose and fertile culture soil.

4. Excessive fertilization.

If you fertilize too much, the new leaves will be thick and uneven, and the dry tips of the old leaves will fall off. You should immediately stop fertilization and increase the amount of water to make the fertilizer flow out from the drainage hole at the bottom of the basin, or immediately pour the pot, rinse the soil block with water and then plant it again into the basin.

5. Hot and high temperature.

In summer, if you put cool flowers (such as cyclamen, Golden Bell upside down, four Seasons Begonia) in a high temperature place to let the strong light shine directly, it is very easy to cause the young leaf tip and leaf edge to scorch, or the leaf yellow to fall off. Move to a well-ventilated shady place in time.

6. Excessive shade.

If the sun-loving flowers are kept in shade or lack of light for a long time, it will cause the branches and leaves to grow, the leaves are thin and yellow, and they do not blossom or rarely bloom. Be careful to move the flowerpot to the sunny place.

7. Soil and water is alkaline.

There are more saline and alkali in soil and water in most areas of northern China, and flowers with acid-like soil are planted, such as rhododendron, camellia, Michelia, gardenia, orchid, magnolia, sweet-scented osmanthus and so on. Due to the lack of soluble iron and other elements that can be absorbed by the soil, the leaves will gradually turn yellow. Acid soil should be selected when planting, and alum fertilizer and water should be often watered during the growth period.

8. Whether it is airtight or not.

If too much nitrogen fertilizer is applied, the branches and leaves will grow luxuriantly, coupled with the long-term unpruned, resulting in insufficient light in the inner chamber branches and leaves, which is easy to cause the leaves to yellowing and falling off. Reasonable fertilization should be applied and pruning should be strengthened to make it ventilated and transparent.

9. The air is dry.

When the indoor air is too dry, some flowers that like the humid environment, such as hanging orchids and orchids, often appear leaf tip dryness or leaf edge scorching and so on. Attention should be paid to water spraying, plastic film cover and other methods to increase air humidity.

10. Improper temperature.

If the room temperature is too low in winter, the flowers are often vulnerable to cold damage, which leads to the yellowing of the leaves and death in severe cases. If the room temperature is too high, the transpiration of the plant is too high, and the root water and nutrients are in short supply, the leaves will turn yellow. Please pay attention to adjust the room temperature in time.

11. The soil is sour.

It is easy to lose acid and magnesium in southern red loam. planting flowers and trees with alkali-tolerant or mute soil, such as oleander, yellow poplar, Yingchun, etc., are often prone to green and yellowing between the veins of old leaves. Can apply calcium magnesium phosphate fertilizer or spray magnesium sulfate solution.

12. Diseases and insect pests.

Leaf spot disease caused by fungi and other bacteria is easy to cause local necrosis of the leaves, yellow spots or patches appear, the whole leaves wither and fall off seriously, yellow and green mottle appears on the leaves after being infected by mosaic virus, and damaged by shell insects, red spiders and so on, the leaves will also become local yellow, or even the whole leaves will wither and fall off. All should be sprayed in time.

13. Strong sexual stimulation.

The use of excessive concentration of pesticides in the prevention and control of diseases and insect pests, or being polluted by toxic gases in the atmosphere, or suddenly watering cold water when the temperature is high, are easy to cause local yellowing and scorching of the leaf tip or leaf surface, or even the whole plant to die.

The above are the causes and control methods of yellowing of Phyllostachys pubescens leaves. We can compare them, find out the causes of yellowing leaves of Phyllostachys pubescens planted by ourselves, and take remedial measures. Make the leaves of Phoenix tail bamboo green all the time.

Causes of yellowing of Phyllostachys pubescens leaves and its solution

Phoenix tail bamboo everyone likes, planting Phoenix tail bamboo is to bring fengshui and wealth to the family. The culture method of Phyllostachys pubescens needs to be treated cautiously. What if we find that the leaves of Phyllostachys pubescens are yellow in the planting process? Let's talk about the culture information of Phyllostachys pubescens.

Causes of yellowing of Phyllostachys pubescens leaves and its solution

The main results are as follows: (1) too much watering, the basin soil is too wet for a long time, resulting in lack of oxygen in the soil, causing part of the fibrous roots to rot, hindering normal respiration and absorption of water and nutrients, causing leaves to turn yellow and fall off. After the injury, the young leaves turn pale yellow, and then the old leaves gradually turn yellow. watering should be controlled immediately, fertilization should be suspended, and the soil should be often loosened to make the soil well ventilated.

(2) drought and dehydration. Flower cultivation leakage watering or long-term watering half waist water (that is, upper wet and lower dry) will affect nutrient absorption, and it is also easy to cause dull and dull leaves and drooping leaves. First, the lower old leaves aged, and gradually withered and yellowed off from the bottom up. At this time, a small amount of watering and spraying is needed to gradually recover and then turn to normal watering.

(3) to lose weight for a long time. There is no application of ammonia fertilizer or no change of soil for a long time, and there is a lack of nitrogen and other nutrients in the soil, resulting in thin branches and leaves and thin and yellow leaves. It is necessary to pour the pot in time and gradually apply rarefied mature liquid fertilizer or compound flower fertilizer into new loose and fertile culture soil.

(4) excessive fertilization. If you fertilize too much, the new leaves will be thick and uneven, and the dry tips of the old leaves will fall off. You should immediately stop fertilization and increase the amount of water to make the fertilizer flow out from the drainage hole at the bottom of the basin, or immediately pour the pot, rinse the soil block with water and then plant it again into the basin.

(5) hot and high temperature. In summer, if you put cool flowers (such as cyclamen, Golden Bell upside down, four Seasons Begonia) in a high temperature place to let the strong light shine directly, it is very easy to cause the young leaf tip and leaf edge to scorch, or the leaf yellow to fall off. Move to a well-ventilated shady place in time.

(6) excessive shading. If the sun-loving flowers are kept in shade or lack of light for a long time, it will cause the branches and leaves to grow, the leaves are thin and yellow, and they do not blossom or rarely bloom. Be careful to move the flowerpot to the sunny place

(7) soil and water is alkaline. There are more saline and alkali in soil and water in most areas of northern China, and flowers with acid-like soil are planted, such as rhododendron, camellia, Michelia, gardenia, orchid, magnolia, sweet-scented osmanthus and so on. Due to the lack of soluble iron and other elements that can be absorbed by the soil, the leaves will gradually turn yellow. Acid soil should be selected when planting, and alum fertilizer and water should be often watered during the growth period.

(8) whether it is airtight or not. If too much nitrogen fertilizer is applied, the branches and leaves will grow luxuriantly, coupled with the long-term unpruned, resulting in insufficient light in the inner chamber branches and leaves, which is easy to cause the leaves to yellowing and falling off. Reasonable fertilization should be applied and pruning should be strengthened to make it ventilated and transparent.

(9) dry air. When the indoor air is too dry, some flowers that like the humid environment, such as hanging orchids and orchids, often appear leaf tip dryness or leaf edge scorching and so on. Attention should be paid to water spraying, plastic film cover and other methods to increase air humidity.

(10) improper temperature. If the room temperature is too low in winter, the flowers are often vulnerable to cold damage, which leads to the yellowing of the leaves and death in severe cases. If the room temperature is too high, the transpiration of the plant is too high, and the root water and nutrients are in short supply, the leaves will turn yellow. Please pay attention to adjust the room temperature in time.

(11) the soil is sour. It is easy to lose acid and magnesium in southern red loam. planting flowers and trees with alkali-tolerant or mute soil, such as oleander, yellow poplar, Yingchun, etc., are often prone to green and yellowing between the veins of old leaves. Can apply calcium magnesium phosphate fertilizer or spray magnesium sulfate solution.

(12) pests and diseases. Leaf spot disease caused by fungi and other bacteria is easy to cause local necrosis of the leaves, yellow spots or patches appear, the whole leaves wither and fall off seriously, yellow and green mottle appears on the leaves after being infected by mosaic virus, and damaged by shell insects, red spiders and so on, the leaves will also become local yellow, or even the whole leaves will wither and fall off. All should be sprayed and prevented in time.

(13) strong sexual stimulation. The use of too high concentration of pesticides in the control of diseases and insect pests, or being polluted by toxic gases in the atmosphere, or suddenly watering cold water when the temperature is high, are easy to cause local yellowing and scorching of the leaf tip or leaf surface, or even death of the whole plant.

What about the yellowing leaves of Phyllostachys pubescens? the culture method of Phyllostachys pubescens

What if the leaves of Phoenix tail bamboo turn yellow? Phyllostachys pubescens likes warm, humid and semi-shady environment, has poor cold tolerance, is not resistant to strong light exposure, beautiful branches and leaves, can absorb formaldehyde and purify the air, is often used for potted ornamental plants, decorating small courtyards and rooms, and is often used to make bonsai or as a low hedge material.

I. Culture methods of Phyllostachys pubescens

1. Choose the suitable cultivation season. The cultivation should be carried out in March, when the mother bamboo has a high germination rate and is the easiest to survive.

two。 Choose the ideal mother bamboo. The mother bamboo should grow healthily, free from diseases and insect pests, the stem bud eye is enlarged, the fibrous root is well developed, and the bamboo age is better in 2012.

3. Planted in time. If long-distance transportation is really needed, it should be watered and moisturized in a cool shelter and properly handled during packaging to prevent damage to the root eye and vibration of the lodging soil.

4. Apply sufficient base fertilizer before planting to ensure adequate nutrition. Choose soft and fine soil, first fill in the bottom of the hole, then apply rotten stable fertilizer, mix well with the topsoil, put the mother bamboo down, cover the soil layer by layer, and cover the soil slightly 2 cm to 3 cm deeper than the original soil of the mother bamboo.

5. Pour enough water to fix the root. Watering in time after planting, be sure to water thoroughly for the first time, and then reduce the amount of water appropriately, as long as it is wet and dry.

Second, what to do if the leaves of Phoenix tail bamboo turn yellow?

Tail bamboo is a common landscape plant, which is suitable for placement in both home and office. However, the leaves of Phyllostachys pubescens often show signs of yellowing, in fact, the leaves are yellow, we should pay attention to different causes, and then deal with them reasonably.

1. Phyllostachys pubescens likes shade, if irradiated in strong light, the leaf tip is easy to be scorched, resulting in the loss of water in the leaves and causing yellowing, therefore, it can be transferred to a cool place.

two。 If Phyllostachys pubescens lacks nutrition in the process of growth, especially the lack of fertilizer, it will also lead to yellow leaves. At this time, it can be properly fertilized and watered.

3. Applying too much fertilizer to the soil will also cause the leaves of Phyllostachys pubescens to turn yellow, especially the new leaves will not appear to be glossy, so we should pay attention to dilute the fertilizer in the soil and add water to the soil to dilute it.

3. Cultivation methods of Phyllostachys pubescens

1. Potted Phyllostachys pubescens should be moved to an outdoor shady place in summer, and pay attention to watering more to keep the basin soil moist, but also spray water to the leaves and the ground to keep the air moist in order to make the branches and leaves of Phyllostachys pubescens green. Dry hot air in summer will scorch the leaves of Phyllostachys pubescens, so it is necessary to cool down properly to prevent muggy. Keep it indoors in winter, control moisture and stop fertilizing. The indoor temperature should be kept above 10 ℃.

two。 During the growth period, liquid fertilizer should be applied every 20 days or so. Liquid fertilizer can be used with cooked thin bean cake water, or compound liquid fertilizer. Fertilization should be stopped in winter.

3. Phoenix tail bamboos do not have to change pots year after year. Generally, the basin is changed every 2 years. The potted soil was mixed with 1 part of rotten leaf soil, 0.5 part of garden soil, a small amount of river sand and rice chaff ash.

IV. matters needing attention

1. Potted Phyllostachys pubescens should be moved to an outdoor shady place in summer, and pay attention to watering more, keep the basin soil moist, spray water to the leaves, and sprinkle water on the ground to keep the air moist in order to make the branches and leaves green. Dry hot air in summer will scorch the leaves of Phyllostachys pubescens, so it is necessary to cool down properly to prevent muggy. In winter, it is necessary to keep indoors, control moisture and stop fertilization, and the indoor temperature should be kept above 10 ℃.

2. during the growth period, liquid fertilizer should be applied every 20 days or so. Liquid fertilizer can be used with cooked thin bean cake water, or compound liquid fertilizer. Fertilization should be stopped in winter.

3. Phyllostachys pubescens does not have to change pots year after year. Generally, the basin is changed every 2 years. The potted soil was mixed with 1 part of rotten leaf soil, 0.5 part of garden soil, a small amount of river sand and rice chaff ash.

4. In high temperature season, potted bamboo should be moved to a cool place to avoid exposure to the hot sun. And spray water to the leaves to keep the leaves green. Potted bamboos should be moved to the leeward or indoors in winter. The best pot loading time of loose bamboo was in February and March before bamboo shoots were unearthed in spring and in September and October in autumn, and the ground cover bamboo was the best in February. Tufted bamboo shoots because of summer and autumn, so it is better to shoot from March to May in spring.