What s going on with boxwood bonsai leaves like this?

a) Nearly half of the boxwood balls are yellow. What is the reason?

If it is caused by infection, spray it with a diluted 500 times solution of 50% of Mobzin wettable powder, or cut off all the dead branches and smear the trunk with quicklime.

Second, because there is too much stagnant water, boxwood should avoid stagnant water, resulting in "waterlogging" in the roots.

There is another reason that could be an insect infestation, but you don't see the insect and it happens to be in this season, so it should be the first reason, and there are a lot of this in the community right now.

Method: Loosen the soil around the boxwood bulbs to aerate and evaporate some of the water. There is also a way to spray on the foliage. Ferrous nitrate.

b) Boxwood wilt.

One symptom. Diseased boxwood initially loses water only from the upper stem of individual branches, and then the whole branch and the whole leaf branch lose water. In the later stage of the disease, the leaves are yellowish-white, and severe infection will lead to plant death.

Second, the law of pathogenesis.

The causative agent is Fusarium which is present in the soil. The germs mostly invade from root wounds, but can also directly invade plants. Generally, the onset of the disease begins in mid-May, and the peak of the disease is in July and August, and some plants do not exceed a week from the onset of disease to death.

3) Prevention and control methods:

1. Strengthen epidemic inspection and strictly prevent diseased plants from entering non-epidemic areas;

2. Strengthen water and fertilizer management, improve plant disease resistance, and keep the cultivation ground moist, but not waterlogged;

3. If diseased plants are found, the diseased plants should be uprooted and burned in time, and the cultivation land can be watered and disinfected with 600 times of 75 chlorothalonil wettable powder per square meter, with a dosage of 5 to 6 kg per square meter, and watered three times in a row, with an interval of 5 days each time; Kilograms of sulfur powder can also be fully mixed with the soil for disinfection;

4 For the plants that are not diseased, the plants can be sprayed alternately with 50 carbendazim 500 times or 65 dysen zinc 1000 times for control, and spray 2 to 3 times in a row.

The first possibility is that the growing environment at home does not meet the requirements, too strong light will burn the plants, and the plants will dry up due to insufficient water. The second plant itself has a problem, the roots are not fully developed, and they are unable to absorb nutrients and water. Thirdly, the seller sprays the drug, which will look more beautiful, but the survival rate is particularly low.

Be right for the situation.

Answer: It may be that there is too much watering, the roots are soaked, and the boxwood can not be watered more. Watering too much is very bad for boxwood.

Small-leaved boxwood. What's the deal with bonsai leaves drying up?

Boxwood is a shrub plant that grows better in a warm and ventilated environment, this plant is not particularly strict with soil requirements and likes to grow in fertile soil, so what's going on with boxwood leaves drying up?

What is the reason why the boxwood leaves are dry.

Boxwood leaves are dry, it may be because the branches and leaves are too dense, very luxuriant, so that the consumption of nutrients will be accelerated, water requirements will become higher, if the water and fertilizer supplement is not timely, it will lead to the boxwood leaves dry up, at this time we also have to comb the branches, if there is a problem with the boxwood roots, we need to immediately check the situation of the roots of the plant, if the boxwood roots grow in a waterlogged environment for a long time, its roots will rot, at this time we must control the watering, to avoid the leaves dry out.

Boxwood leaves can also survive if they dry up, but we need to find the cause in time, and then solve it, so that the boxwood can recover, we can first cut off all the dead branches and rotten leaves of boxwood, so as to prevent the nutrient consumption rate too fast, but also to repair the roots of the boxwood, if the roots are rotten, to cut off the rotten position.

Summary. Hello dear! Glad for your question :

The surface of boxwood leaves becomes more vivid and yellow in the morning when they are exposed to the sun. Boxwood is a drought-tolerant, cold-tolerant tree, and the yellowing of its leaves is a natural response to its adaptation to environmental temperature changes in spring and autumn. When the temperature rises, the water in the plant will evaporate faster, and the color of the leaves will become lighter or even yellow.

In addition, the yellowing of the leaves is also affected by nutrients, and the leaves will also turn yellow due to the lack of nutrients in the soil. At the end of the answer, thank you for your question, I hope mine is helpful to you, I wish you a happy life and all the best!

Is there any way to save.

Hello dear! Glad you asked: the surface of boxwood leaves becomes more vivid and yellow in the morning when they are exposed to the sun.

Boxwood is a drought-tolerant and cold-tolerant tree, and the yellowing of its leaves is a natural response to its adaptation to the temperature changes in the surrounding environment in spring and autumn. When the temperature rises, the water in the plant will evaporate faster, and the color of the leaves will become lighter or even yellow. In addition, the yellowing of the leaves is also affected by nutrients, and the leaves will also turn yellow due to the lack of nutrients in the soil.

At the end of the answer, thank you for your question, I hope mine is helpful to you, and I wish you a happy life and all the best!

First, the temperature is too low.

Why: If we don't take proper measures to protect against the cold in time during the winter and the temperature drops below zero degrees Celsius, the potting soil will freeze through. The consequences can be imagined, the root cells of the plant will also die one after another, and the manifestation may be the phenomenon of yellowing of the leaves.

Solution: In response to this situation, of course, we have to take some cold protection measures. If you grow a plant at home, you have to move it indoors. Generally speaking, ground-grown plants are less likely to occur because they are protected by the earth.

2. Overwatering.

Causes: One of the cases is that the plant is watered too much during its growth, resulting in too much water accumulating in the soil. The second situation is about winter, overwintering plants generally do not need much water, if you water too much at this time, the leaves may also turn yellow.

Solution: If it is the growing season, then you can appropriately reduce the amount of watering and the frequency of He Xiao's watering, and choose a tile pot with good drainage. If it is the latter reason, then we must limit watering during the winter months.

3. Lack of light.

Reason: Plants need to synthesize chlorophyll through light, so sunlight is indispensable. Then, we can deduce the possible cause, which is the lack of light, which causes the plant to synthesize very little chlorophyll, and the leaves turn yellow.

Solution: Extend the light time appropriately. If you don't worry about too strong light, you can block out the light at noon.

There are two main reasons for the yellowing and scorching of large-leaved boxwood bonsai; When the sunlight is too strong, the leaves are burned by the sun's back-shot exposure, but the fertilizer is too thick or the raw fertilizer is not ripe.

Bonsai fertilization must be reasonable, in the amount of fertilizer to master, such as in the growth period, the number of fertilization can be appropriately more, thicker, the general fertilizer to water ratio of 3:10, every 7-10 days 1 time. There is a reply and when the fertilization is too thick, it will cause harm, the plant makes its own organic fertilizer, it must be fully decomposed, fermented before it can be used, if it is found that the leaves are yellow, the fertilization should be stopped immediately.

It is possible to get boxwood wilt, but you must be in time, otherwise you will really die. The second is the lack of water, drying up and dying. The third is rotten roots or moldy roots, which are mainly caused by stagnant water or fertilizer without fermentation.