Why do the leaves of the moon flowers have a black shift?

Causes of dark spots on leaves of moonflowers: The leaves are contaminated with black spot bacteria due to diseases during the growth of the plants, resulting in black spots.

The solution to the dark spots on the leaves of the moonflowers:

1. Prune the moon flowers, and use sharp scissors to cut off the leaves with black spots in the moon flowers;

2. Spray the plant with the agent, mix the carbendazim wettable powder evenly with water according to the instructions on the package, and spray it on the moon flowers, spraying it once every other week, three times in a row.

Known as the queen of flowers, also known as "moon moon red", it is an evergreen, semi-evergreen low shrub that blooms in all seasons and is generally red or pink, with occasional white and yellow, and can be used as an ornamental plant or as a medicinal plant.

The black spots on the leaves of the moon flowers are caused by black spot disease, which is mainly related to poor environment or improper maintenance. During the maintenance period, the moon season is in a closed and humid environment for a long time, and the growth becomes poor, and it is easy to get black spot disease. After suffering from black spot disease, it is necessary to prune the branches and leaves in time, and then spray methyl tobuzin and other agents regularly, which is conducive to the recovery of the moon season.

The reason why the leaves of the moon flowers have dark spots.

During the maintenance period, the leaves of the moon flowers have dark spots, which is the cause of black spot disease. The disease resistance of the moon season is poor, and during the maintenance period, the unsuitable environment or improper maintenance will affect the growth of the moon season. After being infected by the fungus, you will get black spot disease, and the leaves will grow black lesions, and the lesions will gradually expand in the later stage.

Yueji has black spot disease, and needs to cut off its diseased leaves and branches in time. After pruning, the diseased branches should be burned to cut off the source of infection. After the treatment of the branches and leaves, carbendazim, flusilazole or methyl tobuzin can be sprayed on the moon.

The agent can generally be sprayed once in 7 10 days, and after spraying 3 or 4 times in a row, it can inhibit melanoma.

During the spraying period, it is necessary to pay attention to the preparation of water according to the instructions, otherwise it will cause pesticide damage in the monthly season. During the spraying period, the agent should not be stopped halfway, otherwise it will reduce the efficacy. After spraying the moon flowers, they can be placed in a cool and ventilated position indoors for maintenance, and the soil should be kept moist during the maintenance period, which is conducive to the recovery of the moon season.

After the recovery of the moon season in the later stage, it can be given sufficient light, water and fertilizer, which can enhance the disease resistance of the moon season. During the maintenance period, it is also necessary to spray the monthly season regularly to prevent pests and diseases. During the maintenance period, generally about 20 to 30 days, you can spray carbendazim or chlorothalonil and other fungicidal agents for 1 time, or water-soluble fertilizer with fertile leaf amino acids for prevention.

Black spots appear on the leaves of the moon flowers, most of them are due to insect infestations, you can choose some foliar fertilizer, and the moon flowers slowly recover.

The black spots may be due to the presence of black spots, which usually occur on plants of the Rosaceae family. In the early stage of the disease, the diseased branches and leaves should be removed immediately and burned in a concentrated manner. If the situation is very serious, it is necessary to use drugs such as pyrine to prevent and control, or to use tobuzin**.

In the usual maintenance, pay attention to the moisture of the soil, ventilate it, and do not sprinkle water directly on the leaves. Regular spraying of Bika potassium dihydrogen phosphate can enhance its resistance.

The onset of menstrual melanoma usually begins in mid-to-late May and reaches its peak in mid-to-late August.

Control measures: 1) Select resistant varieties.

2) Reasonable fertilization, watering, proper pruning, ventilation and light, and timely cleaning of sick and residual bodies.

3) After wintering, spray with stone sulfur mixture before germination.

4) At the initial stage of the disease, it can be sprayed with 75% chlorothalonil 800 times or 1500 times of echinoallicin.

Right. It's feces bai that is in trouble. Because there is no fermentation, if it is buried in the root of the flower, after the fever, it will burn the inner root system, resulting in rot, which is reflected in the yellow leaves, which will be black and fall off, and even die.

Therefore, immediately dig up the manure and surrounding soil, water and dilute the soil fertilizer, and then dry it as soon as possible to prevent waterlogging, and then fill in the good soil, cut off the dead leaves, etc., and place it half yin and half yang to recover.

1.Improper fertilizer.

2.Too much water.

3.Rotten roots. Treatment: change the pot, change the soil, half a month of clear water, and then you can reduce fertilizer appropriately.

How to solve the yellowing of the leaves and dark spots? After reading it, I understand.

What to do if the leaves of the moon flowers are black and wilted.

It depends on what kind of moon flower you are? What's going on? It's just been cut up, and if there are no roots, it's all broken underneath, and there are no long roots!

The whole branch is rotten, and the leaves are black, and if it is growing well, the leaves may be damaged, such as if you dripped vegetable soup, or there is something bad on him.

The edge of the leaves of the moon flower is black, if it is caused by infection with pests and diseases, you can cut off the diseased leaves, find out the best spray in time. If the fertilizer is too much and too thick, it should be caused by fertilizer damage, and the fertilizer damage needs to be diluted by watering. If the leaves are burned by sun exposure, move to a cool place in summer to recover.

If it is caused by too much watering of rotten roots, it can promote the discharge of stagnant water, prune and disinfect the rotten roots.

1. Infection with pests and diseases: the leaf edges of the moon flowers are black, which may be infected with diseases, such as gray mold, thrips, etc., after these pests and diseases appear, they will cause damage to the moon flowers, resulting in the gradual blackening of the leaf edges, and it will spread to other healthy leaves.

2. Fertilizer damage: If you have just fertilized the moon, it may be the reason that the fertilizer is too thick, which will lead to fertilizer damage to the moonflowers, causing the roots to be burned out and causing the edges of the leaves to be blackened.

3. Sun exposure: In summer, if the moon flowers are still exposed to strong light, it may cause the leaves to be burned, resulting in serious dehydration of the leaves, causing the edges of the leaves to turn yellow and black.

4. Water rotten roots: If you water too much, it will also cause a lot of water in the potting soil, causing root rot and blackening at the edge of the leaves.

1. Environmental factors.

Environmental factors are an important cause of mensary black spot disease. In high temperatures and humidity, fungi are more likely to grow and multiply, resulting in black spots on the leaves. In addition, if the moon grows in a poorly ventilated environment, it is also susceptible to black spot disease.

Therefore, when planting in the month, it is necessary to pay attention to choosing a well-ventilated and sunny environment, and avoid high temperature and high humidity environments.

2. Soil quality.

Soil quality is also an important factor in the development of black spot disease. If there is not enough nutrients in the soil or the soil pH is unbalanced, it will lead to poor growth in the monthly season and make it susceptible to black spot disease. Therefore, when planting in the month, it is necessary to pay attention to choosing a fertile soil and well-drained environment, and to apply fertilizer regularly to ensure that the nutrients in the soil are sufficient.

3. The resistance of different varieties to black spot is also different. Some varieties are more susceptible to black spot disease, while others are more resistant to the disease. Therefore, when choosing the monthly varieties, it is necessary to pay attention to the selection of varieties with strong disease resistance, which can reduce the occurrence of black spot disease.

Fourth, improper management.

Poor management is also an important cause of menstrual dark spot disease. If it grows in too dense an environment, it is susceptible to fungal damage. In addition, if the humidity of the leaves is too high, it is also susceptible to black spot.

Therefore, when planting the month, it is necessary to pay attention to the proper thinning of the plants, keep the leaves dry, and avoid overwatering.

It may be black spots, dark spots are very difficult to get, usually use some fungicides to prevent the best effect, if dark spots appear, lose this leaf as soon as possible, and then use medicine.

This is a leaf mite, also called spider mites, and it takes about 3 weeks from egg to adult. A loose silk web is formed on the plant, so it is sometimes mistaken for a small spider, and when the plant is severely damaged, the leaves fall off completely.

The application of mite danger 4000-5000 times (100 ml per bottle mixed with water 800-1000 pounds) uniform spray, 40% dicofol EC 1000 1500 times, 20% mite kill net wettable powder 2000 times, 15% pyridafen EC 2000 times, 1 8% zitogenol EC 6000 8000 times, etc.

Or take advantage of the feigned death of the adult worm to hunt and kill in the evening. Taking advantage of the phototaxis of the adults, trap them with a black light. When the adult worm feeds on the harm, spray it with 1000 times of 50% malathion emulsifiable concentrate.