What kind of germs do longevity flowers grow when they dry up and turn white and thin skinned?

This is not necessarily due to illness, but may also be caused by improper maintenance. If there is white mold on the leaves, which later turn into large spots, it may be powdery mildew.

In summer, longevity flowers will be dormant and have poor resistance, so they should be maintained in astigmatism or shade, pay attention to ventilation, and water less. If the light is strong, the longevity flowers will be exposed to the sun, which will cause the leaves to dry up and turn yellow and white.

It's just that you don't have to worry about ordinary bacterial infections, go to the flower shop and buy a plant spray that can kill bacteria, spray it on the leaves, and it will have an effect after a week.

1.The leaves of the longevity flower have a white powdery form, which may be infected with downy mildew, which is a fungal disease, and it is easy to be infected when the maintenance environment is in a state of high air humidity and no ventilation for a long time.

2.During the maintenance period, it is necessary to cool down and ventilate in time, properly control water, ensure that the environment is in a sunny and ventilated state, and master scientific watering methods, not dry or watering.

3.After the onset of the disease, the diseased leaves should be cut off and sprayed with fungicides such as carbendazim**.

The temperature is too low.

Longevity flowers are suitable for growing in a warm environment, the appropriate temperature for growth is 15 25, if the temperature is too low, if there are no anti-freezing measures, it will cause frostbite, and the leaves will dry up. Then you need to move it to a warm place, preferably at a temperature of no less than 10, so that it can grow healthily. Lack of moisture.

The longevity flower itself is relatively drought tolerant, but if you don't water it for a long time, it will cause the leaves to turn yellow and the edges of the leaves to dry up. Therefore, it is necessary to replenish it with sufficient water, and it must be watered thoroughly. In addition to this, the soil can be loosened in advance before watering. Too much light.

The longevity flower needs to be given enough light during the peak growth period, but the longevity flower is basically dormant in summer, and if it is kept in a place with strong sunlight, the leaves will be burned and the leaves will dry up. Therefore, it should be moved to a cool and well-ventilated place, and it will slowly regain its vitality. Excessive fertilization.

If you want to grow well, you need to add sufficient nutrients to it, but if you fertilize it frequently or if you apply too much fertilizer, the root system will be burned, so that the leaves will dry up. Then you need to water it immediately until the water comes out, and it will return to normal after a while.

After the longevity flower withers and withers, it is best to cut it off, and cut it directly from the root of the flower; It is best to change the soil once a year, and it can bloom without changing the soil, but the flowers are not bright.

It is normal for the leaves of longevity flowers to wilt, because sometimes the leaves at the bottom of longevity flowers will wilt, which is normal. Because of the normal metabolism, the longevity flower will inevitably have new leaves to grow, while the old leaves will wither and fall off. In this case, there is generally no need to worry, and it is enough to pinch off the withered leaves.

Sometimes, because the branches and leaves of longevity flowers are dense, the leaves are too dense and the leaves will wilt. If the leaves are too dense and not well ventilated, there will be many problems, including leaf wilting. At this time, you only need to cut off the wilted leaves, and prune the branches and leaves properly to keep them ventilated and light.

In fact, sometimes, the wilting of the leaves may be due to too much water and fertilizer. Too much water and fertilizer will not only not make the longevity flowers grow well, but will also have the opposite effect. When too much watering and too much fertilization are applied, it will cause the long-lived flowers to rot or burn the roots, and the leaves will also wilt.

The red, white, and dry leaves of longevity flowers may be caused by several fibril rolling causes:

Excessive or insufficient light: Excessive or insufficient light can cause changes in the leaves of longevity flowers. Excessive exposure to sunlight can cause the leaves to burn, turn red, and dismantle the hood and appear dry white spots.

On the other hand, a lack of light can cause plants to be unable to photosynthesize, causing the leaves to gradually turn red.

Too high or too low temperature: Longevity flowers have certain temperature requirements, too high or too low temperature may cause abnormal leaves. Too high a temperature can cause water to evaporate too quickly in plants, causing the leaves to turn red and the white spots to dry up.

And too low a temperature can affect the normal physiological activities of the plant, causing the leaves to turn red or appear abnormal white spots.

Unbalanced nutrition: Longevity flowers need the right nutrients** to stay healthy. Deficiencies in certain key nutrients, such as nitrogen, phosphorus, potassium, etc., can cause the leaves to turn red and white spots to dry up. At this point, proper fertilization can help the plant recover.

Pest and disease infections: Kalancho flowers can be infected by some common pests and diseases, such as fungal diseases or aphids. These infections cause the leaves to turn red, appear white spots, and gradually dry up.

If your kalancho leaves are red, white and dry, it is recommended that you check the light, temperature and soil moisture to ensure that the plant is in the right conditions. At the same time, pay attention to the nutritional status of plants, prepare stools and take timely measures to combat pests and diseases.

The white frost on the leaves of the longevity flowers may be caused by powdery mildew, or it may be caused by improper watering and downy mildew.

1. Infection with powdery mildew

When cultivating longevity flowers, if they are kept in a dark and unventilated environment, the plants will be susceptible to powdery mildew virus. It is mainly caused by the poor growth of water and fertilizer conditions that cannot meet the growth needs of longevity flowers. If there are a lot of moths, they can also be infected with the virus.

2. Infected with downy mildew

Kalancho is a relatively drought-tolerant plant, its leaves are very thick, can store a lot of water for itself, if you water the plant too much, it will affect the growth of kalancho flower, and it is easy to contract downy mildew. Overwatering causes water accumulation in the potting soil, which leads to root rot.

Longevity flowers love light, but are not resistant to high temperatures, and must be placed in semi-shade to receive scattered light to ensure that longevity flowers have more than eight hours of sunlight every day. If it is placed in a shady place for a certain period of time, it is also easy to get downy mildew.

Ways to treat longevity flower disease:

1. Prune.

The leaves of the longevity flowers have white frost and need to be pruned, first sterilized with scissors, and then the leaves that have been infected with the virus are cut off to avoid the spread of powdery mildew and the death of the whole plant.

2. Prevent and control viruses.

After the longevity flower is pruned, it can be mixed with water and zeb wettable powder in a ratio of 2:3, and then sprayed every 4-5 days to the plant to play a role in the prevention of powdery mildew.

3. Provide moisture.

When watering the plants, keep the soil slightly moist to avoid overwatering, which will affect the growth of longevity flowers.

Longevity flower leaves have white frost, may be a lack of light, poor ventilation, resulting in the decline of plant antibodies, thus infected with powdery mildew virus, need to use zebsen wettable powder and water in a ratio of 3:2 to mix the preparation solution, and then every 4-5 days to spray the longevity flower, and put it in a well-ventilated environment to promote the plant to recover as soon as possible.

1. Reasons

White frost on the leaves of longevity flowers may be infected with powdery mildew virus, and you must pay attention when breeding longevity flowers, and do not put them in a dark and unventilated environment, otherwise the plants will be easily infected with this virus.

2. Prune

The leaves of the longevity flowers have white frost and need to be pruned, first sterilized with scissors, and then the infected leaves are cut off to prevent the spread of powdery mildew and the death of the whole plant.

3. Prevention and control of viruses

After pruning the longevity flowers, you can mix water and zeb wettable powder in a ratio of 2:3, and then spray the plants every 4-5 days to play a role in preventing powdery mildew.

4. Provide moisture

Kalancho is a drought-tolerant plant, its leaves are very thick, can store a lot of water for itself, so when watering the plant, keep the soil slightly moist to avoid overwatering, but affect the growth of kalancho.