What is the cause of yellowing and wilting of the leaves of Huangguolan?

1.Fertilization is too concentrated, causing the leaves to turn yellow, which needs to be fertilized in time. Huang Julan.

The main reason for the yellowing of the leaves is caused by fertilization, generally when fertilizing, we must remember the principle of applying less times, pay attention to controlling the concentration of fertilizer, and pay attention to the fertilizer must not be too concentrated, so as not to affect its absorption of nutrients. If the leaves appear yellow, we must pay attention to the fertilization skills, do not rely too close to the roots when fertilizing, which is likely to cause rotten roots, affect the growth of yellow cypress orchid, and the leaves appear yellow. 2.

Pay attention to watering, too little water will cause the leaves to turn yellow. The yellowing of the leaves of the yellow cypress orchid is mainly because of too much watering, which will affect the respiration of the roots of the yellow cypress orchid, which will cause the leaves to turn yellow, but if the water is too little, it will also cause the drought of the soil, resulting in the yellowing of the leaves of the yellow cypress orchid, so we must pay attention to watering at ordinary times, keep the soil moist, and then pay attention to drainage, watering once a day, and improve the humidity of the soil. 3.

Prune the leaves of the yellow cypress orchid to avoid yellow leaves. When planting, we must pay attention to pruning, because if you don't prune, the branches and leaves of the yellow cypress orchid are too luxuriant, which may also affect its growth, and its dense leaves will also cause it to be too crowded, causing its yellow leaves to gradually become more, if you see the yellow leaves, you must prune in time, cut off the yellow leaves, and increase the light of the yellow cypress orchid, so that it can make it more verdant and have higher ornamental value. 4.

Prevent pests and diseases and avoid yellowing of leaves. In the process of growth, the yellow cypress orchid will be infested by pests and diseases, and the leaves of the yellow cypress orchid will wilt or yellow, which may also be affected by pests and diseases.

When it will wither and yellow, and then it will gradually wither, we need to pay attention to the prevention and control of pests and diseases, remove its diseased leaves in time, remove the yellow leaves, and spray some drugs to alleviate it.

Hello, the yellowing and wilting of the leaves of Huangguolan have the following aspects:

1. Nutrient deficiency: if there is no fertilization for a long time, the nutrient deficiency will cause yellow leaf wilting, to fertilize in time during the growth period, you can use well-rotted farmhouse fertilizer or trim water-soluble fertilizer, and potted plants can be fertilized 2-4 times a month.

2. The light is too strong: the sun is strong in summer, and if you don't pay attention to shading, it will burn the leaves, so you should move to a cool place to raise, or use black gauze to shade the light.

3. Drought and water shortage: If the soil is not watered in time, the soil will be dry for a long time, and the leaves will turn yellow and wither, so it should be watered thoroughly, usually once every 2-3 days.

Bacterial disease, yellow wilt.

Summary. Hello dear, if the leaves of Huangguolan are blackened, the watering should be stopped immediately, and then put in a well-ventilated place, and it will be fine. Growth Habit Positive requires full sunlight. It likes warm, hot and humid, likes acidic soil, is not tolerant to alkaline soil, and is not resistant to drought.

Hello dear, the leaves of Huangguolan are blackened and the leaves should be stopped immediately with watering and cracked fingers, and then put them in a well-ventilated place, and you can do it. Growth Habit Positive requires full sunlight. It likes warm, hot and moist sources, likes acidic soil, is not tolerant to alkaline soil, and is not resistant to drought.

The leaves of my family are black, not a few days ago, and a lot of leaves have been black in recent days, which may be the reason for the lack of light, long-term darkness without light, and poor growth.

It is placed on the balcony, there is sunlight, it can be ventilated, will it be sick.

For example, the yellow horn of the fruit is seriously pested, which will also cause the leaves to turn yellow, Wang Pei to blacken, and even the leaves to fall off. The leaves can be removed and burned, and then sprayed with carbendazim or zebin for control.

I just don't know if it's sick or whatever.

Improper fertilization, improper watering, diseases and pests will cause the leaves of Huangguolan to turn black and lose their leaves.

So what to do ?

If the yellow horn orchid disease and insect pests are serious, the leaves can be removed and burned, and then sprayed with carbendazim or zebin for control.

I don't know why? In case it's not a bug, and I don't know where to buy medicine.

You can buy it at a regular agricultural material store.

Hello teacher, I don't know where the agricultural material store is, can I buy it online?

Yes pro.

Huangguolan will shed its leaves in all seasons. The loss of leaves may be caused by improper watering, and watering it needs to master the method of drying and watering thoroughly, and when the weather is dry, it needs to be sprinkled around its leaves. It likes warmth and is not tolerant to high and low temperatures, so it is necessary to take temperature control measures in summer and winter.

Soil discomfort will also cause it to lose its leaves, so it should be replaced with new soil in time. There are also specific reasons for:

1.Expose to the sun. If it is placed in the shade for a long time, the branches are long and the leaves are thin, the leaves are easy to fall off, the flowers are thin and fragrant, and the growth is thin; And when the summer is too dry, you should give a little shade and water around the pot.

2.Lack of water and drought. The leaves of Huangguolan are large and transpiring quickly, and the water consumption is more, and the watering is often late in summer, and the leaf edge will be scorched, and even burn the tender shoots.

If the watering is insufficient and the potting soil is too dry, the leaf color will be yellowed and scorched. Watering should be done thoroughly to avoid the phenomenon of watering roots. Because the yellow cypress orchid is a fleshy root, the water in the pot is not conducive to the growth of the root system, especially afraid of water accumulation, easy to cause the root system to turn black and rot, the rainy season to turn the pot sideways, pay attention to waterlogging;If you find that the yellow leaves or leaves turn red caused by rotten roots, you should strictly control the watering, and even wait until the leaves are soft and hang down before watering, and the watering water should be stored first to adapt to the temperature.

Lack of nutrients, too much light, drought and lack of water may cause the leaves of Huangguolan to turn yellow and wilt.

1. Improper watering.

Huangguolan prefers to grow in a humid environment, but is not tolerant to waterlogging. If you water too much or too little, it will lose its leaves. The daily maintenance of Huangguolan requires mastering the methods of drying and watering. Sprinkle water around the leaves to prevent them from falling.

2. Improper temperature.

Huangguolan prefers to grow in a warm environment. It is not resistant to high and low temperatures. Leaf drop can be caused by improper temperature.

In summer, it is necessary to take cooling measures for Huangguolan. In winter, when the temperature is lower than 5, it is easy to freeze damage. Therefore, it is necessary to take good measures to keep warm to reduce the impact of fallen leaves.

3. Improper soil.

Huangguo orchid prefers to grow in loose, airy, well-drained, humus-rich soils. If the soil is not suitable, it will shed its leaves. Therefore, the cultivation of Huangguolan requires regular soil loosening.

Home potting needs to be done every 1-2 days. Change the potting soil once a year to avoid falling leaves.