Features of diseases of indoor plants: why do orchids turn yellow leaves and what to do in this case?

People often encounter all kinds of plant diseases, whether it is an experienced florist or a beginner in this matter.

And this is inevitable. Since it is impossible to immediately create ideal conditions for the growth of orchids.

Beginning gardeners, lovers of capricious orchids are no exception and seek to find answers to questions that concern them, one of which is: why do the lower ends of leaves at the base of orchids begin to lose turgor, turn yellow and fall off, what are the reasons for this and what to do to stop it?

What is it and what does it look like?

Orchid is a pretty moody flower native to the tropics. A sign of orchid disease is a change in the color of the foliage to yellow. There are several reasons for this.

Causes of the disease

Consider the causes of the disease, if the edges of the leaves turn yellow on the orchid, whether treatment and care are required at home, how to save the flower if its leaves turn yellow. There are a great many reasons for yellowing leaves. All sorts of factors influence this, whether it is illiterate care or excessive watering of a flower. It is worth starting with common causes.

Sunburn

A sunburn can cause leaves to change color to yellow. If the leaf has become so from the side of the window, this indicates an excessive, destructive amount of sunlight. This is a common mistake of beginning gardeners and florists, as they prefer to place an orchid on the south side.

Orchid is a tropical flower, but it does not tolerate direct sunlight, like many houseplants. Under direct rays, spots form on the leaves, which subsequently grow. The very spot of the burn is small and brown.

It is contraindicated to tear out the leaf on its own, this will have a detrimental effect on the flower. If it is not possible to change the side of the window, then the beauty should be tinted with tulle, and the window itself can be sealed with either newspaper or paper.

Lack of light

Paradoxically, the lack of light also causes yellowness. The leaf begins to change color at the base. This beauty loves bright, scattered rays. But if the orchid is in the shade, it will begin to die. For this flower, either east or west should be selected. The lack of sufficient sunlight received by the orchid can be detected after one to two years.

Excess moisture

One of the most important topics about plant care is the topic of proper watering. If the beauty is very often watered and sprayed, this will entail a stagnation of moisture and a subsequent change in the color of the leaves to yellow.

Watering orchids occurs every week. But there are several factors besides the main that accompany the yellowness of the leaves: the small size of the pot and air temperature. The roots rot quickly, due to lack of proper nutrition, the leaves begin to turn yellow. You should wait for the moment when the soil of the orchid becomes dry, then you can water the flower without fear for its health.

Little water

If the soil is watered little and weakly, this will lead to the death of the orchid. It does not receive enough nutrition and is not saturated with minerals: potassium and iron. Then potassium begins to be redistributed from the old tissues of the plant to young, this leads to pallor of the leaves, followed by a change of color and death.

A lot of nutrition

And what to do when the orchid blooms, but its upper leaves dry and turn yellow? When the edge of the leaf turns yellow, it means that there is an excess of calcium in the soil. This is the wrong dosage of fertilizer. This is done for the speedy flowering of orchids. She may look healthy and attractive at the time of purchase. An excess of fertilizers subsequently leads to a failure of the absence of further flowering.

Fusarium rot

Fusarium rot is a common disease. Leaves gradually turn yellow, irregular spots form on them. Leaflets become quite soft, elastic, they curl covered with spores of the fungus, often fall off. Lack of ventilation in the room and high humidity are the reasons for the presence of this disease.

Viruses

Orchids are quite rare for viral diseases. If the flower is infected, its leaves begin to become covered with yellow spots in the form of a mosaic. There may also be arrows, patterns, stripes. It is not yet possible to cure an orchid with such a disease.

Powdery mildew

This disease is characterized by the presence of white plaque, which forms on the yellowed part of the leaf.

When to worry

Do not worry and worry if one or two leaves below turn yellow and the rest have a healthy appearance and a juicy green color.

This repeats about the dying off of old foliage, instead of which new grows, providing a flower metabolism. This is repeated every year, every two years or every five years, it all depends on the type of plant. In other cases, yellowed leaves are not a guarantee of plant health.

What should I do if the plant changes color?

If you ignore the changed color of the leaves for a long time, then soon the flower may become sick, and the most unpleasant disease for him would be a viral disease, followed by the death of the plant. If the leaves turn yellow at the base of the orchids, but do not fall off, this is due to various factors.

1. First you need to temporarily suspend the dressing of the flower.
2. Then it should be fertilized gradually with a weak solution.
3. It is necessary to get rid of the yellowed leaves, but if they become so due to a burn, it is worth waiting until they fall off by themselves, and move the flower to another place, avoiding direct sunlight.

If the leaves began to turn yellow and fall off, then this is caused by disease.

1. It is necessary to process the flower in various solutions, for example, in a solution of Fundazole.
2. It is necessary for some time to stop spraying the flower.
3. It is necessary to create air circulation, but not to create drafts, otherwise the disease will not go away.

Recovery, treatment

Restoration and treatment of a flower depends on the amount of healthy tissue remaining in the leaves.

Photo

Next, you can see the photo of the orchid with yellowed foliage, To decide what to do:

Home Care

Lighting

The orchid does not tolerate sunlight, so the best solution for it is to place it on the east or west side. You can use a special phytolamp. In the summer, the beauty is darkened, for this tulle, matte film will do. In winter, light should surround the flower for fourteen hours.

Temperature

If we talk about the summer period, then the favorable temperature for the orchid will be twenty degrees. In the winter, from sixteen to eighteen degrees. The temperature difference between day and night should not exceed five degrees.

Watering

Orchids should be watered with extreme caution and thoroughness.

An important fact: the roots do not tolerate moisture stagnation and begin to rot.

It all depends on the type of orchid. Some species prefer a rather moist soil, others like dry, and the flower should be watered at a time when the soil has become barely wet. Nevertheless, it is better not to water the plant once than to saturate it with an excessive amount of moisture.

Active competent watering is needed for a beautiful woman during growth and flowering. Water should be soft, settled. You can pour boiled water, the plant will not harm it.

Fertilizer

The flower needs fertilizers during active growth, fertilize the orchid once every three weeks. It is necessary to alternate the dressing of the flower with its watering. Too often fertilizing a beautiful woman is bad for her immunity.

So, so that the leaves do not turn yellow and the leaves fall off, special care should be taken to such a whimsical flower and to avoid various diseases. Then this flower will be healthy, strong and strong, and also delight people.

Interesting video

Watch the video about the causes of yellowing of the leaves of the orchid:

Watch the video: ORCHID CARE : Yellow Leaves and Other Ailments PART 4 Bacterial problems and Cold Damage (October 2024).