Eight ways to solve the problem of yellowing of Cymbidium leaves

The yellowing of orchid leaves often occurs in summer, and the yellowing of magnolia leaves greatly affects the ornamental value. I still remember that when I first planted the magnolia, when I saw that the thick leaves began to appear yellow, I was flustered at first and then impatient. That kind of mood was really too bad. So how to solve the problem of yellowing of magnolia leaves? Next, let the editor who decorates the network give you a brief introduction.

Eight ways to solve the problem of yellowing of Cymbidium leaves

1. The leaves of Cymbidium are yellow, and the middle leaves are black and rotten.

Solution: the emergence of this symptom requires the above nine methods to prescribe the right medicine to the case. While the middle small leaves blackened and rotten, we need to make a further judgment, break open the two leaves to check, if the gap between the leaves blackened out of festering juice. It can be judged that the formed gentleman orchid arrow did not have time to grow out of the leaves and rot directly in the middle of the leaves.

two。 All the leaves of Magnolia turn yellow

Solution: all yellow, often the symptoms of fever, the solution: immediately shade, and cut off the yellow leaves.

3. The leaves of Cymbidium are withered and sagging.

Solution: withered or sagging leaves are symptoms of lack of water. Watering should grasp the principle of no dry, no watering, no stagnant water in the basin.

4. The leaves of Cymbidium are partially yellowed.

Solution: local yellowing, it is likely to be fire, cold wind, hot water, acid and alkali erosion. You can rule out external causes in time. Sometimes, the lack of nitrogen fertilizer may cause plants to suffer from chlorosis. The decrease of chlorophyll causes the leaves to turn yellow. In this case, fermented cake fertilizer and water can be added. (the methods of breeding vary with different seasons)

5. The leaves of Cymbidium are wrinkled and yellow spots.

Solution: root burning caused by excessive fertilization. Change the soil immediately, soak the roots with 0.1% potassium permanganate solution for 20-30 minutes, rinse with clean water, remove the rotten roots after drying, spread plant ash on the wound, and replant.

6. Two outer leaves of Cymbidium turn yellow (planted for 4 years)

Solution: this is a normal new layer of metabolism, only need to prune the outer 2 leaves.

7. The leaves of Cymbidium appear grayish yellow.

Solution: the reason for the grayish yellow leaves of Cymbidium is mainly due to the strong direct sunlight and the need for shade.

8. The leaves of Cymbidium have yellowing symptoms.

Solution: due to lack of light, if the room is very dark, gentleman orchid will yellowing. Solution: replenish the light with fluorescent lamps.

Ten solutions to the yellowing of Cymbidium leaves

The yellowing of orchid leaves often occurs in summer, and the yellowing of magnolia leaves greatly affects the ornamental value. I still remember that when I first planted the magnolia, when I saw that the thick leaves began to appear yellow, I was flustered at first and then impatient. That kind of mood was really too bad. At that time, the author always wondered what caused the leaves to turn yellow. Later, I collected a lot of information and looked at it one by one. Finally, prescribe the right medicine to solve the problem of yellowing leaves. If your gentleman orchid also has such symptoms, then hurry up according to the author's symptoms, give your orchid, the right medicine to the case! It is not clear how to grow children's shoes, please check:

The gentleman in the flower is beautiful!

Ten solutions to the yellowing of the leaves of Cymbidium

1. The leaves of Cymbidium are yellow, and the middle leaves are black and rotten.

Solution: the emergence of this symptom requires the above nine methods to prescribe the right medicine to the case. While the middle small leaves blackened and rotten, we need to make a further judgment, break open the two leaves to check, if the gap between the leaves blackened out of festering juice. It can be judged that the formed gentleman orchid arrow did not have time to grow out of the leaves and rot directly in the middle of the leaves.

There are many reasons for flower and arrow rot: one is that too much water is sprayed in the hands of the florist, causing sewage to flow into the crevice and lead to bacterial infection, and the other is due to careless watering that causes sewage to splash into the crevice and cause rot. Consequences: under normal circumstances will not affect the life of the orchid, but if in high temperature and humidity weather, it is very easy to cause wiping head and the whole plant rot. Treatment: toilet paper or facial Jack paper can be used to absorb rotten juice, use appropriate methods to remove dirt that can be cleaned, and usually keep the environment relatively dry, it is recommended to use basin watering method.

two。 All the leaves of Magnolia turn yellow

Solution: all yellow, often the symptoms of fever, the solution: immediately shade, and cut off the yellow leaves.

3. The leaves of Cymbidium are withered and sagging.

Solution: withered or sagging leaves are symptoms of lack of water. Watering should grasp the principle of no dry, no watering, no stagnant water in the basin.

4. The leaves of Cymbidium are partially yellowed.

Solution: local yellowing, it is likely to be fire, cold wind, hot water, acid and alkali erosion. You can rule out external causes in time. Sometimes, the lack of nitrogen fertilizer may cause plants to suffer from chlorosis. The decrease of chlorophyll causes the leaves to turn yellow. In this case, fermented cake fertilizer and water can be added. (the methods of breeding vary with different seasons)

5. The leaves of Cymbidium are wrinkled and yellow spots.

Solution: root burning caused by excessive fertilization. Change the soil immediately, soak the roots with 0.1% potassium permanganate solution for 20-30 minutes, rinse with clean water, remove the rotten roots after drying, spread plant ash on the wound, and replant.

6. Two outer leaves of Cymbidium turn yellow (planted for 4 years)

Solution: this is a normal new layer of metabolism, only need to prune the outer 2 leaves.

7. The leaves of Cymbidium appear grayish yellow.

Solution: the reason for the grayish yellow leaves of Cymbidium is mainly due to the strong direct sunlight and the need for shade.

8. The leaves of Cymbidium have yellowing symptoms.

Solution: due to lack of light, if the room is very dark, gentleman orchid will yellowing. Solution: replenish the light with fluorescent lamps.

9. The leaves of Cymbidium are yellow and weak.

Solution: yellow and weak leaves are lack of fertilizer. Thin fertilizer should be applied frequently; the yellowing of leaves is native and impermeable. Rotten leaf soil or pine needle soil should be replaced.

10. Rotting roots caused by yellowing of low leaves

Solution:

Materials: scissors, art knife, chlorothalonil, rooting water, nutritious water, spray bottle.

Method of operation:

①: uproot the magnolia.

②: cut off the old and rotten leaves with a beauty knife.

③: use scissors to cut off rotten roots and old roots.

④: mix the spray bottle with 3:5 water and chlorothalonil.

⑤: move the orchid back to the basin.

⑥: pour with rooting water and nutritious water.

⑦: water about twice a month for 5 months.

⑧: after 5 months, water will be watered about 4 times a month for 2 months.

⑨: return to normal watering times.

⑩: done.

The flowers in bloom are delicate and beautiful

Ways to prevent the leaves of Cymbidium from yellowing:

The yellow leaves of Cymbidium are mainly due to improper management. The yellow leaves of Cymbidium are caused by the following reasons:

The main results are as follows: 1. Excessive watering (yellowing of leaves caused by water): if the pots have accumulated water for too long, the leaves are easy to become infiltrative and yellowing, which occurs at the tip of the tender leaves, and the symptoms develop from top to bottom. That is, the common water yellow is caused by excessive watering, which is characterized by no obvious change in the old leaves and yellowing of the young leaves, which should be controlled immediately.

2. Lack of water (yellowing of leaves caused by drought): if you are too dry, or if you water half a section of water every time, the old leaves will be yellow. Due to water shortage and drought, it is characterized by the yellow of the old leaves from the bottom up. If the water shortage time is a little longer, the whole plant will be yellow, or even die, so it should be watered in time.

3. Hypertrophy (yellowing caused by excessive fertilization): excessive fertilization will cause root burning and yellow tip of leaves. Caused by excessive fertilization or high concentration; characterized by thick, shiny and uneven young leaves; fertilizer, ploughing and watering should be controlled

4. Element deficiency and chlorosis (iron deficiency): if iron is deficient in basin soil, the top of the leaf turns yellow first. If there is a lack of nitrogen, the new leaves are yellowish white.

5. Yellowing caused by lack of nutrients: it is caused by insufficient fertilizer, low fertilization concentration, and long fertilization interval; it is characterized by yellow young leaves and tender stems, and if it is not fertilized in time after seeing this phenomenon, it will also cause yellow leaves and even death of the whole plant; for flowers lacking fertilizer, do not apply a large amount of thick fertilizer at one time, so as not to cause root burning. Due to the great change of soil fertility conditions, the phenomenon of yellow leaves often appears in the greenhouse, which is characterized by obvious young leaves, light old leaves, yellow mesophyll, green veins and a typical network, which can be solved by using ferrous sulfate solution. the method is as follows: 7 parts of cake fertilizer, 5 parts of ferrous sulfate and 200 parts of water.

6. Sunburn: after strong direct sunlight (summer), macula occurs in the leaves, which is called sunburn. When dried at high temperature (more than 30 ℃), the leaves are also easy to yellowing.

7. Pollution: the leaves of Cymbidium should be kept clean. If splashed with dirt, the contaminated place may turn yellow.

8. Freezing injury: the freezing injury occurs when the orchid is below 0 ℃, and the symptom is still yellow leaf. In order to restore the normal growth of Cymbidium after yellow leaves, it is necessary to find out the source of the disease and take corresponding measures. The method is: dig out the whole orchid to check the root, such as the rotten root, remove the rotten part, change the new soil and re-cultivate it, and put a layer of fine sand under the root. Loose rotten leaf soil should be used in basin soil, and the pH (pH) should be neutral. The soil is not dry or wet and has good ventilation. Gentleman orchid likes weak light, except in winter, summer should be placed in a half-yin and half-yang place, avoid the direct sun. If the occurrence of "green deficiency" can add liquid fertilizer (such as black alum fertilizer water), the key point is less and more times, be careful not to splash the fertilizer or mud on the leaf, if splashed on the leaf, rinse it off with clean water in time. When applying solid fertilizer, it is better to avoid direct contact with fleshy roots.

Blooming brightly in the sun!

Treatment of yellowing of leaves of Cymbidium

1. Can the yellow leaves of Cymbidium be pruned. ?

The key is to figure out why there are yellow leaves.

The general reasons for yellow leaves are:

① should be kept in a semi-shady place, and the leaves will become sunburned and turn yellow when the sun is strong.

② gentleman orchid for the fleshy root basin to keep a little damp can, too much water to hurt the root leaves will turn yellow.

The leaves of ③ are yellow when they are deficient in fertilizer, and orchids can apply dilute nitrogen fertilizer once every half a month, and do not apply fertilizer in summer to avoid root damage. The yellow leaves of the orchid can be trimmed, the scissors can be roasted on the fire and sterilized, and then the yellow leaves can be cut off, but not torn.

two。 The solution to the yellowing of Cymbidium leaves in spring:

The gentleman orchid spent the winter, and the leaves turned yellow and withered. Will you still live in spring?

Should be able, turn the basin, remove dead leaves, hollow root removal, with gentleman orchid special soil, mixed with a large piece of orchid stone, soil: blue stone = 3:2. Pour water once after turning the basin, put it in the astigmatism ventilation place to slow the seedling for 1 month, then use a week to gradually see the light, normal maintenance can be. Do not expose yourself to the sun.

3. The solution to the yellowing of Cymbidium leaves in summer:

To see if it is usually too much watering, too much easily rotten roots, rotten leaves and rotten stamens, and should be poured in the basin soil, not on the leaves, especially on the central leaves. If the basin soil is often too wet, it will cause the water to flow back, and then, as you said, it will gradually blacken and rot from the tip of the leaf, so the basin soil should be on the dry side. In addition, the temperature is higher in summer, if the temperature of its growth environment drops below 25 degrees, rarefied liquid fertilizer above 1:20 can also be applied in summer, once every semimonthly. This can promote the growth of Magnolia, so that it can shorten the dormancy period or not dormancy. There is another situation: the light is too strong. Gentleman orchid is soft and light, if the strong light, the leaves will become rough, the leaves will become yellow and dark, lose emerald green, but also easy to cause "sunburn". Conclusion: breeding magnolia is a thing that must be constantly summarized to find problems, to careful observation, careful care, in order to grow a gentleman orchid with ornamental value. Finally, I wish the orchid planted by your friends grow healthily.

Five reasons for the yellowing of Cymbidium leaves treatment of yellowing of Cymbidium leaves

Flower friends who cultivate Cymbidium may encounter the situation of yellowing leaves, but many people do not know how to deal with them. Let's take a look at the five reasons for the yellowing of Cymbidium leaves and the treatment of yellowing leaves.

Analysis of the reasons for the yellowing of the leaves of Cymbidium:

1. Temperature reason: the suitable temperature for the growth of Cymbidium is 1525 ℃. When the temperature difference between day and night is 8: 12 ℃, it is most suitable for the growth of Cymbidium. If the temperature is too high, the leaves will become shallow, yellow and even wilt.

2. humidity reason: Magnolia is a wetting plant, which requires high humidity of the growing environment. If the basin soil is too dry for a long time and the temperature is high, it is easy to make the leaves yellow.

3. Soil reasons: Magnolia likes loose and fertile sandy soil, soil consolidation and insufficient supply of fertilizer will make the leaves yellow and affect flowering.

4. Lighting reasons: Cymbidium is a semi-positive flower, which likes weak scattered light and is not resistant to strong light. Too strong light is easy to cause sunburn, light leaves change from green to yellow, heavy leaves dehydrate and dry up and die.

5, the reason of ventilation: the orchid is too dense and the surrounding environment is closed, which hinders the air circulation and makes the plant thin and yellow. Therefore, it is necessary to strengthen indoor ventilation to avoid excessive density.

The treatment of yellowing of the leaves of Cymbidium:

Phenomenon 1. The leaves of Cymbidium are yellow and the middle leaves are black and rotten.

Solution: toilet paper or facial Jack paper can be used to absorb rotten juice, use appropriate methods to remove dirt that can be cleaned, usually keep the environment relatively dry, it is recommended to use basin watering method.

Phenomenon 2. All the leaves of Cymbidium turn yellow.

Solution: all yellow, often the symptoms of fever, encounter this situation need to immediately shade, and cut off the yellow leaves.

Phenomenon 3. The leaves of Cymbidium are withered and sagging.

Solution: leaf withering or sagging is a symptom of lack of water, and the principle of no dry and no water in the basin should be mastered when watering in the future.

Phenomenon 4. The leaves of Cymbidium are partially yellowed.

Solution: local yellowing, it is likely to be fire, cold wind, hot water, acid and alkali erosion, and eliminate external causes in time. Sometimes, a lack of nitrogen fertilizer may cause plants to suffer from chlorosis, reducing chlorophyll and causing leaves to turn yellow. In this case, fermented cake fertilizer and water can be added.

Phenomenon 5. The leaves of Cymbidium are wrinkled and yellow spots.

Solution: burn roots caused by excessive fertilization, change the soil immediately, soak the roots with 0.1% potassium permanganate solution for 20-30 minutes, rinse with clean water, remove the rotten roots after drying, spread plant ash on the wound, and replant.

Phenomenon 6. Two outer leaves of Cymbidium turn yellow.

Solution: this is a normal new layer of metabolism, only need to prune the outer 2 leaves.

Phenomenon 7. The leaves of Cymbidium appear grayish yellow.

Solution: the reason for the grayish yellow leaves of Cymbidium is mainly due to the strong direct sunlight and the need for shade.

Phenomenon 8. The leaves of Cymbidium appear yellowing symptoms.

Solution: due to lack of light, if the room is very dark, gentleman orchid will yellowing, with fluorescent lamps to supplement the light.

Phenomenon 9. The leaves of Magnolia are yellow and weak

Solution: leaf yellow and weak is lack of fertilizer, thin fertilizer should be applied frequently; leaf yellowing is native and impermeable, and rotten leaf soil or pine needle soil should be replaced.

The above is the relevant introduction of this article, I believe you have a simple understanding of this after reading it, if necessary, you can continue to pay attention to the No. 1 home network to learn more information.