Bamboo turning yellow or black is not sick

Be. Bamboo. There are several reasons for turning yellow or black:

1. Moisture problem. Bamboo grows in a humid environment, if you don't water it enough, its leaves will slowly turn yellow, pay attention to watering thoroughly, don't just wet the surface soil. Of course, too much watering is not good, too much water will make its roots rot, it is recommended to take out the potting soil to dry and then repot.

In addition, some bamboos are raised in water, so you must change the water frequently, for example, every two days when the weather is hot, otherwise its roots are easy to rot, which will cause the leaves to turn yellow or even black.

2. Lighting problems. Bamboo grows like full sun and a warm environment, and if it is kept in a shady place, its leaves will not only grow very thin, but also yellow, so be sure to put it in a bright place. But there should not be too strong sunlight, otherwise the leaves will also be yellowed, and in winter, it can be placed in a sunny and leeward place.

3. Nutritional problems. Bamboo needs to be fertilized regularly, and if it lacks nutrients, its leaves will also turn yellow. Take, for example, the element iron.

It is the most common nutrient to be deficient, and it is a direct supplement to ferrous sulfate.

The situation will basically improve. Of course, it is not good to apply too thick fertilizer, and it is easy to burn seedlings when applying too thick fertilizer, so that the leaves are dry and yellow, and they are black. In addition, if you use organic fertilizer for bamboo, it must be thoroughly decomposed before using it.

Yellowing or blackening of the bamboo is not necessarily a sign of illness, it could be due to the following reasons:

1.Water problem: The growth of bamboo needs a relatively humid environment, and if it is not watered enough, it will cause the leaves to slowly turn yellow; If you water too much, it will cause the roots to rot, causing the leaves to turn yellow or even black.

2.Light problems: Bamboo needs plenty of sunlight and a warm environment to grow, and if it is left in a shady place for a long time, it will cause the leaves to turn yellow.

3.Lack of fertilizer: Bamboo needs sufficient nutrients to grow, and if it is lacking, it will make the leaves yellow.

4.Air pollution: If the air quality is not good, it can also cause the leaves of bamboo to turn yellow or black.

Therefore, the yellowing or blackening of the bamboo may be caused by the above reasons, not necessarily due to illness.

Yes, it can be recovered.

1. Replenish water in time.

Reason: If you do not water for a long time and lack of water during maintenance, the plant will not be able to photosynthesize normally, which will lead to yellowing and wilting.

Solution: If it is caused by lack of water, it should be replenished in time and the bamboo should be watered once. In the later stage, we should pay attention to the maintenance method to avoid the same phenomenon.

2. Increase light.

Reason: It is a light-loving plant, if it is placed in a cool place for a long time when breeding, the plant will also be listless and yellow.

Solution: Move the plant to a well-ventilated and well-lit place as soon as possible, so that it will gradually improve and recover slowly. If you don't want to go directly to a strong place in summer, you should slowly increase the light intensity.

3. Appropriate fertilization.

Causes: Excessive fertilization or lack of fertilizer during maintenance can lead to yellowing of the plant. Excessive fertilizer will burn seedlings, resulting in yellow leaves and dead leaves. Lack of fertilizer will also be the same.

Solution: Fertilizer should be used thin Bika water-soluble fertilizer, a small amount of many times, if the amount of fertilizer is too large, fertilizer should be stopped and the fertilizer should be rinsed with water, so that the plant can slowly recover.

Your bamboo is not deficient in nutrients because your other bamboo does not show yellow leaves. It is very likely that it is infected with a virus, which is what we often call a disease. Plants infected with viruses can rarely be treated with drugs** good.

It is possible to remove the infected bamboo, change the soil, and plant only the bamboo that does not show symptoms. But before using this method, you can try to apply potassium fertilizer to the bamboo, because the lack of potassium in the plant can cause the stems to become soft and yellow, and you don't water, just keep the soil just moist.

The blackening of bamboo stems may be caused by a variety of diseases, and the common ones are as follows:1Anthracnose:

Caused by fungi, it will cause black lesions on the surface of bamboo stems, surrounded by white hyphae around the edges of the lesions, which will cause the stems to dry and break in severe cases. 2.Bamboo root rot:

Caused by aquatic fungi, the roots and underground stems of the bamboo will rot, and the stems will gradually turn black, which will lead to the death of the bamboo in severe cases. 3.Bamboo Thin-shell Disease:

Caused by bacteria, it will cause black or dark red lesions on the thick surface of the bamboo stem, and the lesions will gradually expand, and in severe cases, the stem will break. 4.Bamboo trembling wheel aphid eggplant lack of letter:

Bamboo aphids suck the sap on the bamboo stems, causing the stems to gradually turn black, which can lead to the death of the bamboo in severe epidemics. Therefore, if your bamboo stems are blackened, it is recommended to carry out timely inspections and ** to determine the specific** and take corresponding control measures.

Bamboo stalk rust.

Causes of blackening of bamboo roots:

1. Infection with germs: Generally, due to poor water quality or bacteria carried in the water during the water change process, infection with germs leads to the roots being attacked by bacteria and blackening or even rotting. Users can take out the blackened roots of Fugui bamboo, and use sterilized scissors or knives to cut the blackened roots clean.

2. Lack of oxygen in the roots: In the process of maintaining Fugui bamboo, if you forget to change the water for Fugui bamboo, the water quality conditions will be poor, the oxygen in the water body will be insufficient, and the root respiration will be blocked and the oxidation will turn black. Fill the washed container with clean water, put in the trimmed root system, change the water about every 3 days, and wait about 10 days for the new white roots to grow.

The blackening of bamboo stems is a bamboo stalk rust. Bamboo stalk rust is also known as bamboo bedding disease. After the bamboo stalk is damaged, the material becomes black and brittle, which affects the value of the process.

Severely ill bamboos may die. In the hard-hit bamboo forests, the growth declined, and the number of bamboo shoots decreased. The disease mostly occurs in the middle and lower parts or bases of bamboo stalks, and sometimes on twigs.

During the month of 6 July, the affected part produces yellow-brown or dark brown powdery cushions (piles of fungus) that are oval or elongated. By November in the second spring, it produces an orange-brown velvety, tightly grown, not easy to separate, and a leathery cushion (a pile of winter hugs for germs). After the yellow-brown cushion falls off, the affected part of the bamboo stalk becomes black-brown.

The germs are spread by the wind through the hugs. Bamboo stalk rust is more likely to occur in bamboo forests with over-dense growth and poor management. The disease generally occurs on bamboos that are more than 2 years old, and the disease is generally rare in bamboos that are born in the current year.

Prevention and control methods: 1) Strengthen the management of bamboo forests, cut down reasonably, do not make bamboo forests too dense, and also reduce the chance of diseases.

2) In the bamboo forest with mild disease, the diseased bamboo should be cut down as soon as possible and the diseased part should be burned to avoid the spread of germs; Spray 0 5 1 degree (Baumé) stone sulfur mixture, or aminobenzene sulfonic acid every 7 days, spray 3 times in a row, and the effect is better.

3) 6 In October, spray 1 degree (Baume) stone sulfur mixture or 100 150 times sodium dirust in the bamboo forest.

4) Every 10 days or so, spray 2 3 times with 500 times of 25% wettable powder and 1,000 times of 50% wettable powder.

1. Overwatering: Bamboo leaves will turn yellow after being soaked in water and rotten roots, so it needs to be watered according to the dryness and wetness of the soil. 2. Improper fertilization:

When fertilizing bamboo, the fertilizer needs to be diluted into the shed cavity. 3. Poor ventilation: place bamboo in a ventilated environment.

4. Insect pests: cut off the infected yellow leaves of the bamboo in time, and then spray the insecticides.

1. Overwatering

Bamboo chains are suitable for growing in a more humid environment, but too much watering during the planting process will cause the roots of the bamboo to soak in water and rot, causing the bamboo to turn yellow, and the soil needs to be loosened immediately to drain the excess water in the soil, and reduce the amount of watering in the future maintenance.

2. Improper fertilization:

Bamboo in the growth process of nutrient demand is not high, in the maintenance of too much fertilizer will also cause the plant to yellow, need to dig out the bamboo from the soil, use water to rinse the roots and dry, and then plant the bamboo in the re-prepared soil, and in the future maintenance needs to dilute the fertilizer for use.

3. Poor ventilation

Bamboo is suitable for growing in a well-ventilated environment, and a poorly ventilated environment will affect the growth of bamboo, and at the same time will cause bamboo to be unable to photosynthesize normally to obtain nutrients, so it is necessary to provide a well-ventilated environment when planting, and at the same time avoid too much bamboo planted in an area.

4. Suffering from insect infestation

The yellowing of the bamboo may be due to an insect infestation, and it is necessary to spray an insecticide immediately on the affected part to eliminate the pest. At the same time, it is necessary to spray pesticides regularly and provide light for the bamboo during future maintenance to prevent pests from continuing to damage the plants.