What s the matter with the yellow leaves of the Red Maihime?

I always introduce some particularly common flowers and plants, which are not fresh and I am tired of seeing them every day. I believe that few friends plant this variety that I want to talk about today, even if I see it, I don't know its name, it is the Red Dancing Queen, is the name particularly domineering?

Some people say it's a foliage plant, others say it's a maple tree, but these claims are true. The Red Maihime plant was introduced from Japan, and the planting rate was not high at first, perhaps because it has not yet adapted to the local environment. Later, with the evolution of the variety, there were more and more growers.

It is believed that its fiery red leaves are more ornamental, making up for the disadvantage of not being able to grow maple trees in the home.

It's easy to see others planting, but when I try to maintain it, I encounter a lot of troubles, such as the leaves that grow are easy to fall off. In addition, in autumn, the leaves should have changed color, but there are always many leaves that do not change color for a long time, and even if they change color, they will appear in a state of half red and half green, which looks very ugly.

There are many factors that contribute to this phenomenon, the first of which may be the wrong purchase of the variety. Due to the high popularity of the Red Dancing Lady plant, many merchants sell some undesirable varieties as shoddy. Even if it has grown mature, it is difficult to change color, just like flowers and plants, it is easy to grow, but it is difficult to grow flower bones.

Be careful when purchasing.

In addition, it may be that there is a problem with the soil, and I like fertile soil, but it does not mean that the nutrients in the soil need to be added a lot. If excessive fertilization can lead to changes in soil properties, such as soil salinization, excessive fertility, and increased metabolism. The most obvious feature is the yellowing of the leaves, although this change is not caused by a lack of water, but by burns.

Since watering is mentioned, Xiaohua feels that it is necessary to popularize the watering method for everyone. It prefers a moist environment, which does not mean that the soil is more humid. When the weather becomes very dry, you can spray it with a little water to make its branches deeper.

You can drench the leaves with water, provided that the ventilation is good and the doors and windows are not closed.

That's because there is no proper watering, this flower needs to be watered every 3 to 4 days, so that it can grow luxuriantly.

Because of excessive watering, it causes a lack of oxygen in the soil, which causes some fibrous roots to rot, hinders normal respiration and absorption of water nutrients, and causes the leaves to turn yellow and fall off. Due to the limitation of the size of the pot, the roots cannot stretch freely downward and around, so the development of the root system is hindered, and if it is not properly managed, improper watering and fertilization, it will be more prone to yellow leaves than open field flowers.

It is very likely that the plant is deficient in nutrients, so nitrogen and potassium fertilizers should be supplemented in time to promote the growth of plant rhizomes, moderate watering, keep the soil moist and place it in a ventilated place.

Red Maichi's leaf wilting is caused by leaf blight!

Leaf blight is a disease that is prone to occur in seedlings, which not only affects the normal growth and development of plants and ornamental effects, but also causes the death of diseased plants. Leaf blight is a common disease in the growth process of Japanese red maple and red dancing queen, and the harmful symptoms and control methods of Japanese red maple red dancing girl leaf blight are introduced as follows

Symptoms: At the beginning of the disease, the tip of the leaf and the edge of the upper part of the leaf produce small green spots with water stains, and then as the disease progresses, the diseased part appears scorched, and gradually expands to the lower part and the inside of the leaf. The upper half of the leaf dies.

The junction between the diseased part and the healthy part is russet, dark red in the middle, after the whole leaf 3 4 die, the base of the male leaf is green, the dead part, the leaf tip is curled, grayish-white, the whole leaf is like fire. Due to the loss of leaves and the loss of chlorophyll, it seriously affects photosynthesis, weakens the growth of plants, and loses their ornamental value.

Occurrence rule: The disease is caused by the infection of the subphylum Semi-Phylum Pseudomycetes with Spotted Mycophyta. The pathogen overwinters in diseased leaves with conidia.

In the spring of the following year, the temperature rises to produce conidia, which are infected by rain and climate transmission, especially the rainwater that splashes on the ground, and will be repeatedly infected during the rainy season. Generally, the disease is severe from July to October, and the disease will also occur seriously under the condition of poor soil drainage, high temperature and partial application of nitrogen fertilizer. At the turn of summer and autumn, under the conditions of high temperature and strong light, the plants are exposed to the sun and the leaves are burned, which will aggravate the development of diseases.

Prevention and control methods: strengthen cultivation management. In terms of fertilization, avoid partial application of nitrogen fertilizer, and increase phosphorus and potassium fertilizer appropriately to promote the growth of plants and enhance disease resistance.

At the same time, it is necessary to combine fertilization, often loosen the soil, enhance the air permeability of the pot, ensure the normal growth and development of the root system, and improve the absorption function. At the end of autumn, the diseased fallen leaves should be removed in time and burned in a concentrated manner to reduce the pathogenic bacteria of overwintering. In the spring and autumn high temperature season, the flower pot should be placed in a cool place with scattered light and good ventilation to prevent exposure to the sun.

2.Chemical control. Before the disease spreads at the beginning and the end of the disease, cut off the diseased leaves to reduce the source of re-infection, and then spray 500 times of 50% carbendazim or 65% zebzeb 1000 times or 45% zebsen 800 times solution every 10 to 15 days, and spray 2 to 3 times in a row.

The reason for the yellowing of the leaves of the red dancing girl is to see whether it is the reason for the lack of water in the summer and autumn of the "dry yellow" season. The second is that there is a lot of water in the "water yellow" pot, the root respiration is blocked, and the leaves will turn yellow.

The limitation of small potting soil space, coupled with the high temperature and sultry heat in summer and autumn, the potting soil water will evaporate quickly, if we do not replenish the water to the plant in time, it is easy to cause the root system of the plant to lose water due to lack of water absorption, resulting in the loss of water and the leaves turn yellow and fall off.

The yellowing of the leaves may be caused by the cold weather and the leaves are injured, so it is recommended to move them to a suitable temperature for protection. Or it may be that you haven't fertilized and watered for too long, which may also cause the leaves to turn yellow. If the above two conditions do not exist, it is necessary to consider whether the leaves have the possibility of insect infestation, and if so, spray the leaves in time**!