What should I do if the leaves of the tree turn yellow?

Artemisia mandshurica is a kind of shade-tolerant Araceae foliage plant, and it is a popular indoor ornamental plant in recent years. Its leaves are like a string of coins, so it is named Golden Tree. But many people find that the leaves of the tree are yellow after breeding for a period of time, but I don't know why. Let's take a look at the reason why the leaves of the tree are yellow with the editor.

1. Improper watering

The money tree likes the warm, hot and slightly dry environment, and it is more resistant to drought and should not be watered too much, so as to avoid the phenomenon of yellowing of the leaves. In daily maintenance, it is only necessary to spray some water to the leaves regularly to wash the fine dust attached to the leaves. At the same time, attention should be paid to giving some shade. When the room temperature is above 33 degrees, spray water once a day to keep the soil slightly moist, spray water on the tree surface and the surrounding environment in winter, make the air relative humidity above 50%, and reduce watering after autumn, or spray instead of watering, in order to facilitate the safe winter of newly drawn tender leaves. In winter, pay attention to the soil should not be too wet, too dry is appropriate, otherwise, too wet soil can easily lead to root rot and death, or even the death of the whole plant.

2. Improper fertilization

The tree is more fond of fertilizer, but it must be well fertilized. During the growing season, the tree can be treated with a thin mixture of urea and potassium dihydrogen phosphate 2-3 times a month. In order to make it survive the winter safely after autumn, the application of nitrogen fertilizer should be stopped and 0.3% potassium dihydrogen phosphate solution should be applied continuously for 2 to 3 times to promote the hardening and enrichment of the young leaf axis and newly drawn leaves. When the temperature drops below 15 degrees, fertilizer should be stopped immediately to avoid damage to the roots caused by low temperature.

3. Soil problems

The lack of acidity in the soil is also one of the reasons for the yellowing of the leaves of Artemisia mandshurica, because of the special climate of its origin, it forms a strong ability of drought resistance, so it is better to plant soil with good permeability, and the pH value is adjusted to 6-6.5. it is slightly acidic. Because the tuber of the tree is huge and the root system is well developed, it is necessary to choose a deep blue and white porcelain basin or purple sand basin to plant, but the bottom of the basin should be covered with more stones, bricks or bark to create a good breathable environment for its roots.

4. Insect pests

Insect pests are also one of the reasons for the yellow leaves of Artemisia mandshurica. In the environment of poor ventilation and poor light, the leaves are extremely vulnerable to scale insects, resulting in yellow leaves. Therefore, the insect body on the money tree can be removed with transparent tape, the live worm body on the money tree can also be wiped off with a wet cloth, or during the peak incubation period of the nymph, spray 1000 times of buprofezin wettable powder, the insecticidal effect is good.

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