Causes of yellowing
It is possible to return the brightness and green color to the leaves of flowers only after identifying the reason that led to the loss of decorativeness. There are many of them, but the reasons are conditionally divided into two groups:
- Pests, diseases.
- Improper care.
Most often, yellowed leaves are the result of improper care. A similar manifestation is the first reaction of the plant to unfavorable conditions of detention. Less often, a yellow tint appears when flowers are damaged by diseases, pests. In this case, the leaf blade is affected first, and then the whole plant. It also happens that the leaves turn yellow due to aging of the plants.
Lack of sun
UV deficiency is also a common cause of yellowness in plants. The lack of sunshine slows down the metabolism of green pets. Light-loving species are drawn to the light, shoots and leaves weaken and turn yellow. From this, the attractive appearance of the culture is lost. To eliminate this cause, the plant must be rearranged closer to the light. In winter, for plants that are on the north side, phytolamps can be used for additional lighting.
Aging
When asking why the leaves of indoor flowers turn yellow, flower growers do not always assume that this is a natural process. Over time, the leaves begin to turn yellow on old plants. They must be permanently removed.
Sometimes the flowers turn yellow branches with leaves. For rejuvenation, they must be removed, and in some cases, the plant must be transplanted by picking up a looser pot. It will be useful to add organic fertilizers.
Croton - home care, leaves fall
If you figure out why croton leaves dry and what to do, it is easy to fix the problem. Croton belongs to the category of evergreens. In the wild, this culture grows in the tropical jungle in the south and east of Asia. In nature, plant height reaches 2.5-4 m, which is facilitated by favorable conditions.
Croton is prized by flower growers for the beauty of its leaves.
For the full development of a flower, you need warmth, good lighting and regular moderate watering. But at home, it is not always possible to maintain the optimal regime for the plant. If the tips of the leaves begin to dry in croton, this signals a mismatch in growing conditions.
Watering disturbance
Most plants require moderate watering, although some prefer high humidity, and some require occasional watering. When asking why the leaves of indoor flowers turn yellow, it is first of all recommended to evaluate the quality of watering.
With an excess of moisture, the soil becomes waterlogged, the roots begin to rot. As a result, the shoots and leaves turn yellow. If you do not take urgent measures, then the whole plant dies.
And why do the leaves of indoor flowers turn yellow due to lack of moisture? The reason is that when the earthy coma dries out, the plant has nowhere to take nutrients and it begins to actively use the nutrients contained in the leaves and shoots. As a result, the leaves begin to turn yellow, the roots dry out, and the plant dies.
Dracaena dies: how to save from the disease
Why do ficus leaves fall - reasons
If all conditions of detention are observed, then the development of diseases and foliage can be avoided.The plant will have strong immunity, and it will be able to overcome the disease. In addition, it is recommended from time to time to apply fertilizers that contain phosphorus and potassium to the soil.
However, it is not always possible to protect the flower from infection. Symptoms of the disease are most often manifested on foliage. First of all, the color of the leaf blade changes, the turgor is lost, spots appear, the tips dry out, and then their base.
Dracaena has a lot of diseases
Diseases that most often affect dracaena:
- heterosporosis. The foliage on both sides begins to turn yellow, after which it becomes stained and dries. Without treatment, the flower dies. To help the plant, you need to react in time. Fungicides, which contain copper, can help;
- phyllostictosis. Irregular brown spots with a green or yellow border appear on the foliage of the lower tier. They are quite large in size. Leaves may fall off;
- bacteriosis. The foliage at the tips rots, so the plant discards it en masse. Ulcers can be seen on the stem. High humidity and high temperature in the room are the main factors in the development of the disease. The treatment is useless, so the flower will have to be destroyed in order to save the rest of the plants in the house;
- alternaria. Fungal disease, signs of which are brown spots. Over time, without treatment, they begin to turn black. Spray with fungicides three times a month. This will help fight and prevent illness.
Why does dracaena massively shed its leaves when it gets sick? This is a natural response to pathogens. This is how the plant tries to protect the rest of the organs.
For your information! Fungicidal preparations such as quadris, topaz, maxim will help to overcome the disease.
Lighting
If the leaves turn yellow, but everything is in order with watering and temperature, there are no drafts, then you should look for the reason in the wrong lighting. Often yellowing of leaves, tips - poor lighting. There are several ways to solve the problem:
- Move the plant pot to a lighter spot.
- Arrange additional lighting.
When moving a plant, remember that not everyone likes bright light. Some, on the other hand, prefer shade. If such a plant is placed in a brighter place, then it will receive burns and may die.
With a lack of lighting, the plants begin to reach for the window, the leaves develop unevenly, the internodes are long, the foliage is unevenly colored. Usually, on the shady side, the leaves turn yellow and fall off. This manifestation of a lack of light is typical for all indoor flowers, but is most pronounced in hibiscus.
If it is not possible to move the plant to a brighter place, then additional lighting will be organized for it. It is recommended to use special phytolamps and fluorescent lamps for it. They compensate for the lack of sunlight, while they do not overheat the plants and consume little electricity.
And if the light is chosen correctly, then why do the leaves turn yellow in indoor plants? In some species, this phenomenon is observed due to the uneven lighting of the bush. To compensate for this, the pot is periodically turned over. Thus, the flower receives the right amount of light evenly.
Drafts and cold air currents
They negatively affect almost all indoor green pets. Plants that are native to tropical countries are most affected. If yellowish spots begin to appear on the leaves, which gradually fade, becoming almost transparent, then the flower suffers from drafts and cold streams created by air conditioners and fans in the summer. In order for the plant to rejoice with its bright green color, it must be placed away from the vents and doors.When the split system is turned on in the room in the hot months, it is necessary to determine the place where the exposure to cold air is minimal by moving the flower pot there.
Fertilizers
Indoor plants need constant feeding. With a shortage or excess of some substance, the flower reacts with certain signs.
- Magnesium. When small spots appear between the veins, which gradually increase in size, they indicate a magnesium deficiency. Gradually, the color of the spot changes to orange, then turns red.
- Copper. With copper starvation, the same symptoms are observed as with a lack of magnesium, but the leaves begin to lose elasticity.
- Manganese. The leaves of the plants become yellowish-gray or yellow-green. The high pH level of the soil also appears.
- Molybdenum. The lack of this element is manifested by yellowing of the leaves and their twisting.
- Nitrogen. With a lack of nitrogen, the foliage becomes shallow, becomes pale green or completely whitish.
- Calcium. If only the tips turned yellow, then this indicates a lack of calcium. Usually this situation is observed when watering plants with unsteady water with a high salt content.
To maintain the balance of nutrients, you should periodically feed the plant with mineral or organic fertilizers. In specialized stores, there are preparations designed specifically for a specific group of plants. They contain a balanced complex of essential substances and vitamins in the amount in which the plant needs them.
Emergency measures
They depend on the cause of the yellowing and drying of the foliage. When buying any plant - both common for a particular area and outlandish exotic plants - you need to familiarize yourself with the rules of its cultivation and adhere to them. Most crops have a sufficient margin of safety, and restoration of the necessary maintenance conditions at any stage of the growing season can be life-saving.
A very common cause of yellowing of leaves is a violation of the watering regime of plants.... If, with a moisture deficit, it is enough to increase the volume of water, then to reanimate the flooded plant, it should be urgently transplanted, removing the damaged roots, and if they have disappeared completely (while darkening and decay affects the trunk of the plant below), root a healthy cutting or top again. At the same time, they completely change the soil and the pot to clean, fresh ones.
It is easy to correct the lack or excess of fertilizers in the soil. Different products require different technologies for their introduction, which is detailed on the packaging of the drug.
If harmful insects are identified as the cause of drying and yellowing, the use of special insecticides is the cardinal method for solving the problem. As a rule, they are universal and destroy all harmful insects that have settled on the leaves.
It is not difficult to recognize the reason why the leaves of a house plant turn yellow, dry, if you treat a green pet with attention and love. Timely measures taken usually help to restore the health of the plant and its attractiveness, but it is best to follow the rules of caring for a particular crop, avoiding stressful conditions.
Diseases, pests
Most plant pests feed on sap, affecting stems and flower stalks. That is why the leaves turn yellow at the flower. With a strong infection, they spread to the entire plant, which leads to its death. To prevent this from happening, you need to inspect the plants once a week.
Most often, the following pests can be found on flowers:
- Scabbard, aphid. Pests settle in colonies on leaves. Due to the damage caused by parasites, the leaves turn yellow, then quickly turn brown, fall off.
- Spider mite.His favorite indoor plants are hibiscus, balsams, begonias. The presence of a tick can be recognized by the yellow leaves and cobwebs on the lower part of the leaves. If you look closely, you can see small light insects - mites. They feed on the sap of the plant.
To cope with pests, it is necessary to process flowers with special preparations. Usually, three times the application is enough to deal with the parasite. However, in case of severe infection, it is recommended to dispose of the diseased plant.
In addition to processing the plant itself, the place where the pot was located is necessarily disinfected.
Often, indoor plants are affected by fungal diseases. When infected with an infection, it destroys one leaf after another until the entire plant is killed. Under favorable conditions, the fungus attacks other plants. A fungal infection is spoken of when brown, yellow spots appear, wilting, falling off, drying of leaves. Most often, geraniums are exposed to diseases.
To cope with fungal diseases, they process the plant, be sure to transplant it into a new pot, carefully removing the old substrate from the root system.
