Why violet leaves turn yellow: causes and consequences

Saintpaulia (violet) is perhaps the most common plant in gardeners’ collections. Almost every home plant lover grows a flower in his home. Its demand is due, first of all, to the duration of flowering and the variety of colors of the buds. Today, about 8,500 varieties of violets have been studied and described. Each of them is unique and finds its fans. But sometimes the foliage turns pale and loses its decorative effect. Spots may appear on it, or the leaf may turn completely yellow. To save your pet, you need to find out the reason.

Violet overheating

One of them is high temperature or overheating.
Yellow spots begin to appear on the leaves, they dry out and wither. This picture is observed if the room temperature exceeds 25 degrees or more. If there is a lot of direct sunlight, the flower may lose almost all its leaves. They burn out, and the soil becomes very dry and unsuitable for life. What to do? In summer, it is recommended to move the violet to a dark place or to the north side, since the sun from the south can lead to death. You can try to shade the place where the pots are, for which special foil is often used, which saves the leaves from burning out.

If you notice that the substrate is burnt out or the temperature is too high, yellowing can be prevented as follows:

  1. Fill a basin or bowl with warm, but not hot, water, preferably already infused.
  2. Place the flower pot there, but so that the water does not flood the soil or touch the bottom sheets.
  3. After half an hour, pull out the pot, wait until the water drains and place it in a prepared place, but not on the edge of the windowsill, where there are drafts.

How to prevent yellow leaves?

It is necessary to pay attention to the leaves of the flower when purchasing it. Often we do not notice the small spots of yellow or brown color and make a purchase in the confidence that the plant is healthy. But at home, the beginnings of the disease develop, and troubles begin.

To prevent the plant from getting sick, plant it correctly from the beginning. The pot must be new. But even if it is old, wash it before planting and then disinfect it. This will guarantee that the diseases of the old flower will not transfer to the plant you want to replant. Also, always use new compost. It is better if it is bought in a store. After all, such products undergo quality control and certainly do not contain fungi or pests. Well, the land that you can collect in the garden or in the forest is not immune from this.

Try not to place violets next to other plants, let them have their own place. This will prevent the transfer of diseases and pests from one flower to another.

Consider the characteristics of different varieties of violets. Plants with dark leaves like less light than those with naturally light leaves. Use this information when placing your flowerpot.

Adjust the watering and fertilizing regime to suit certain times of the year. In winter, the flower's needs decrease, and in spring, during the period of active growth, on the contrary, they increase.

Yellowing leaves or spots are a symptom of several problems that can even lead to the death of an individual

In this case, it is very important to notice in time, determine the cause and begin treatment.

Some of the causes of this problem can develop rapidly and destroy the flower in just a week.

  • Check their condition daily;
  • And give them a few minutes.

You must always monitor the condition of the violet.

Such control will not allow yellow spots to spread and change the color of the plates:

  • Remain unnoticed;
  • And accordingly, it will not allow the disease to progress.

In addition to spots, yellow stains may appear on the leaves.

Lack or excess of light

Another common cause of lightening and yellowing of leaves in violets is too bright light. Moreover, both scattered natural and artificial.

The level of illumination required by this plant lies in the range of 2600 - 3000 lux. And if going beyond the lower limits of the interval leads to poor flowering or its complete absence, then exceeding the upper limit causes the leaves to lose color; they become greenish-yellow and painful in appearance. At the same time, their petioles lengthen significantly, and the edges of the leaf blade often curl upward.

Therefore, violets need not only to be protected from the sun and shaded, but also to correctly select the power of phytolamps and the height of their mounting when keeping plants in winter or when placing them on racks.

Diseases and treatments

Why don't they grow and what should be done?

There can be many reasons why a violet refuses to grow. This is a too cramped pot, and poorly permeable soil, and lack of light. The gardener can try to correct his mistakes by transplanting his pet into a larger container, changing the soil and purchasing an artificial lighting lamp.

Violets have such a fragile root system that the most seemingly insignificant reason can undo all the months of work of the grower. Therefore, replanting should only be done by transshipment, so as not to damage the roots, into moderately moist, slightly acidic soil with a pH of 6-6.5. The soil is monitored for several days: if there are signs that it has become sour or greasy, the violet needs to be replanted again.

Why do the leaves turn yellow and how to treat them?

If your pet's leaves begin to turn yellow, there may be two reasons for this:

  • Excessively cold water.
  • Sunburn.

Violets should be watered in the evening, when the risk of burning is reduced to zero, and use only warm water. For growing (especially in the spring-summer months), an eastern and western window with the possibility of using shading is suitable.

Watch a video about the reasons for yellowing of leaves in violets:

Fusarium

This is an infectious, extremely dangerous disease. Rotting occurs first in the roots, then in the stem and leaves.

They become watery and gradually die off. The pathogens penetrate the roots from the soil and infect the vessels of the stem, petioles and roots.

Causes:

  • room temperature is too low;
  • lack of fertilizers;
  • weakening after the flowering process.

There is no treatment in this case. The affected plant is destroyed along with the soil, and the pot is disinfected with substances containing chlorine.

Watch a video about violet fusarium and its treatment:

Powdery mildew

Most often this becomes a problem only for transplanted plants. It's all about soil contaminated with a fungus, the spores of which quickly become active at high humidity and low temperatures.

As soon as a white coating similar to flour appears on the leaves, it is necessary to begin treating the plant with antifungal drugs:

  • "Topaz".
  • "Saprol".
  • "Bytleton."

Tip: You can also use ordinary sulfur, which is used to thickly powder the violet.

Watch a video about powdery mildew on violets and its treatment:

Late blight

Late blight affects the leaves, which become covered with brown, drying spots, and then fall off, exposing the trunk. As the disease progresses, the stem of the violets undergoes necrosis and the plant dies in a matter of weeks.

The flower can be saved only if the rosette is intact: the owner can root its top by treating it with an antifungal drug. Healthy plant tissue is green, diseased tissue is brown. The rest of the plant is destroyed.

To prevent an epidemic among house plants, they should all be treated with anti-fungal drugs for prevention.

Gray rot

Spores of the fungus botrytis, which causes gray mold, can remain viable for a long time in any soil. Conditions for the development of fungi are excessive watering with excess air humidity and low room temperature.

Symptoms of this disease:

  • wilting of leaf blades and petioles;
  • a fluffy coating of smoky gray or brown on the leaves and petals;
  • rotting of roots and stems.

The affected parts must be removed immediately and the flower treated with a fungicide.

Vascular bacteriosis

If the air in the room is too hot and the ventilation is poor, violets often develop vascular bacteriosis. Their leaves become covered with mucus and die. Drugs used for treatment:

  • "Zircon".
  • "Previkur".
  • "Fundazol".
  • "Immunocytophyte".

Rust

It is often confused with calcite burn: in both cases, the lower part of the leaf is covered with brown specks, and the upper part is covered with orange tubercles. But rust most often affects young plants, and fungi cause this disease. Having cracked, the tubercles release their spores, which cover the living parts of the plant and destroy it. This disease does not often affect violets.

Treatment consists of spraying the plant with sulfur dust, a one percent solution of Bordeaux mixture or a fungicide.

What else can happen to leaves if not cared for properly?

Improper care is harmful to violets, as well as to any other indoor plants. The results of such care may be:

  • with a lack of light, new leaves become lighter and smaller, the petioles become elongated, and the edges of the leaves bend upward;
  • increased acidity or excessive salinity of the soil leads to curling of leaf plates, the same problem occurs with a lack of nitrogen or overwatering;
  • light spots on the leaves or their tips hint to the grower that the flower is watered with too cold water or is suffering from sunburn;
  • with the development of root rot, wilting appears and the color of the leaves is lost;
  • gray rot provokes a process in which the leaves may become covered with a gray coating;
  • late blight is manifested by the presence of brownish, brown spots on violet leaves, turgor is lost;
  • due to non-compliance with the temperature regime, rust may appear on the plant, characterized by unpleasant rusty tubercles and dots on the leaves and cuttings;
  • with excessive watering and hypothermia, black rot may develop on the violet, the leaves will darken and turn black.

This is interesting: In what natural zone does Cloudberry grow, in what regions of Russia

Violets are quite whimsical plants, which will not be so easy for an inexperienced gardener to cope with.

Improper care

If the violet is not properly cared for, yellowing of the foliage may occur. Despite the fact that the flower is demanding of high humidity, spraying it is strictly prohibited. After this procedure, drops appear on the foliage that do not dry out for a long time. Ultraviolet rays are focused on them. In place of the droplets, yellow burn spots appear, which can have different shapes. Flower growers note the appearance of stripes, arcs, dots, shapeless blots, etc. on the foliage. The spots are characterized by a clearly defined local structure. After the spots appear, their further spread is not observed. The leaves themselves are strong. No color change is observed in this case.

Violet needs regular and abundant watering. It is strictly forbidden to allow the earthen clod to dry out, as this can cause yellow foliage. When the soil dries out, the leaf blades become pale and limp. If the flower is not watered further, the leaves will turn brown and fall off.

With excessive watering, rotting of the root system and stems is observed. Against this background, the violet foliage turns pale and yellow. In order to eliminate excessive moisture or drying out of the soil, it is recommended to use wick irrigation. It involves placing a thick cord in the pot that can retain moisture. One end of the cord must be passed through the drainage hole of the pot and placed in a container that is filled with water. In this case, watering of the drainage layer, as well as regular watering, is not carried out.

In order for the plant to fully grow and develop, it is necessary to regularly introduce nitrogen fertilizers in sufficient quantities. In order to ensure abundant flowering, phosphorus fertilizers are applied. If these rules are violated, yellowing of the foliage is observed. If you apply only phosphorus fertilizers to the violet, this will negatively affect its appearance. In order to ensure complete feeding of violets, it is recommended to use Emerald fertilizer. It is characterized by an optimal composition of microelements and is developed specifically for violets. In addition, this fertilizer protects the foliage from yellowing.

At the end of winter, a one-time feeding is recommended. In spring and autumn, fertilization should be carried out once a month. In summer it is necessary to fertilize the violet every week. Florists are recommended to alternate organic and mineral fertilizers. The first type of fertilizer is prepared from mullein or chicken droppings a week before the procedure. 100 grams of manure must be poured with a liter of water and left for 2 days. After this, the product must be filtered and diluted in three liters of water. Bird droppings are a more concentrated fertilizer. It is diluted at the rate of 20 grams per 3 liters of water. In order to eliminate the possibility of yellowing on the foliage, it is recommended to properly and promptly care for the violet.

Inappropriate composition or soil depletion

The most suitable substrate, favorable for growing violets, should be light, loose, breathable and slightly acidic in composition. When the soil becomes alkalized, which often happens due to the use of hard water for irrigation, the leaf blades begin to turn yellow and discolored, and later acquire a brown tint and dry out at the tips. As a preventative measure, it is recommended to acidify irrigation water with citric acid or vinegar. The sourness should not be noticeable on the palate. If water for irrigation settles in a container, then you can add a small amount of high-moor peat to it, which also reduces the hardness of the water. Flower growers claim that 1 gram of peat can reduce water hardness by 1 degree.

Even with proper watering, the nutrient substrate in a flower pot becomes depleted over time, with missing nutrients. Yellow leaves may indicate precisely these problems. This can be solved by replacing the soil mixture in the flower pot and adding fertilizer. Young violets require fertilizing with a high content of nitrogen and potassium, and when forming buds, phosphorus-containing fertilizers.

Physiological changes and their signs

Reasons for the yellowness of violet leaves:

  • incorrect placement;
  • improper watering and fertilizing;
  • substrate requirements are not met;
  • natural death of the lower leaves.

The first cause of all troubles may be the acquisition of a plant or cutting with ready-made problems. Therefore, the leaf for rooting should be taken from a healthy plant without the slightest defect and not from the lower tier of the rosette. The purchased plant must undergo a two-week quarantine. This means that the plant is not placed in the collection, it is kept separately and its condition is monitored. Diseases or insect pests will be detected during this time, and the entire collection will avoid infection.

Yellowing of the leaves on the lower tier may mean that the violet is old and has not been replanted for a long time. There is not enough food, and it is distributed to flowers and young leaves. The reason why violet leaves turn yellow may be a lack of potassium and nitrogen. The same result is possible if the earth has lost acidity; elements in an alkaline environment do not pass into a soluble form. The best way to correct the situation may be to replant the flower and replace the soil or water it with slightly acidic water.

However, the cause may be discoloration of leaves in bright light, and not just sunlight. Violets on racks under artificial lighting are also harmful due to excessive lighting. There is a special film that can be glued to window glass or cover plants using accessible methods. Violets with dark leaves are more resistant to excessive light.

The leaf blade may turn yellow when touched to cold glass in winter, when watered with cold water or abundantly. Saintpaulias love moist air, but this is achieved by placing a container of water or damp moss nearby. Is it possible to spray violets? No, this will not increase humidity, but it will ruin the appearance of Saintpaulia. The leaves do not like such moisture. Caring for them involves washing them with soapy water in the shower and drying them in the bathroom once a quarter. A flower with droplets of water will become a focal point for the sun's rays, and the leaf will get burned, an unsightly brown spot.

If the plant is exposed to a draft, this may cause pale or bronzed leaves. Both low and high temperatures have negative consequences for the plant. At temperatures above 25 degrees, the flower plate becomes discolored.

Basics for caring for violets

For inexperienced gardeners, it may seem that as soon as a violet’s leaves turn yellow, it needs urgent treatment. For this purpose, chemicals are most often used - fungicides. But the yellowing of plant leaves is not always associated with a disease; most often the problem is due to improper care.

Exhibition of violets

Rules for caring for Saintpaulias:

  • The plant should be protected from direct sunlight, otherwise the leaves will first begin to dry out and then may even fall off, resulting in serious sunburn. For violets, partial shade or shade is preferable.
  • Proper selection of soil is also of great importance for the flower. When replanting, be sure to check whether the plant feels good in its new location. Most often, a special primer for violets is used, which is sold in all flower shops.
  • Wick watering. This is something that many gardeners do not know about, but it is this lower type of water delivery that will provide the violets with a sufficient amount of moisture. With top watering, there is a high probability that the plant will rot.
  • Regular fertilization during the growing season and throughout the entire flowering period. At the very beginning of the growing season, when the flower comes to life after a short period of dormancy, it needs nitrogenous fertilizers, but as soon as the buds are laid, potassium-phosphorus compounds are added, which will ensure lush and long-lasting flowering. Fertilizers are also applied during watering using the wick method. Complex liquid solutions are simply added to water.
  • Change the soil in the pot annually.

Violets also need to periodically tear off the lower leaves and regularly remove dried flowers.

Advice! To make the violet more fluffy, it needs to be periodically turned to the light in different directions.

Features of the flower

Most novice gardeners do not understand why the leaves turn yellow. This is due to the physiological characteristics of the flower or infectious diseases. The occurrence of physiological changes is observed with improper care. The appearance of infectious diseases can only be observed on plants that have weakened immunity.

Violet foliage is collected in rosettes that have the correct shape. There are flowers in the center of the rosette. The leaves are characterized by a horizontal position. It shouldn't rise. If violet flowering is not observed, then the foliage should also be in a horizontal position. The leaves of the indoor flower are green in color, the shade of which varies depending on the type of crop. If, upon examination, the florist determines that his violet does not differ from this description, then he should not worry. If discoloration and dryness around the edges appear, it is necessary to evaluate the quality of flower care, as well as the presence of diseases.

Violet leaves can turn yellow for a variety of reasons. They can only be determined if the florist regularly inspects the flower.

Proper care

Why do geranium leaves turn yellow at home - causes and treatment

Proper care of Saintpaulias is the key to success. If you follow all the recommendations of professionals, you can be sure that the flower will grow and develop.


Lush violets

Basic provisions that must be observed at different stages of flower development

  1. At the very beginning, after purchasing a violet, it must be quarantined for two weeks in a separate room.
  2. At the stage of the beginning of vegetative development after a period of rest, fertilizing with nitrogenous fertilizers is necessary.
  3. During the period of bud formation and flowering, potassium-phosphorus fertilizers will come to the rescue.
  4. During the flowering period, it is necessary to remove fading buds and flowers.

Regardless of the stage of development, wick watering is recommended for all violets. Fertilizers are also added to the soil in the same way.

Disease or pest attack

It also happens that pests begin to attack all indoor pets. Some insects enter through windows, some are already in the contaminated soil and become active under good conditions. Symptoms may include rotting flowers or the appearance of yellow shoots and leaves. How to determine that a flower is being attacked by pests?

  • the leaves lightened, became transparent, lost their elasticity, the ends of the leaves turned yellow;
  • spots appear, the plants look tired, lethargic, and begin to dry out quickly.

It happens that you notice the movement of an incomprehensible white mass along the edges of the pot. These are springtails or better known to flower growers as springtails. Often their appearance is associated with rotten roots, which are their real delicacy. The problem is that over time, the number of duras begins to grow, and white pests begin to eat up healthy roots, gradually moving to neighboring pots. To get rid of them, you can use shag, citrus crumbs scattered on the ground, or pyrethrum. Reasons why a flower may die include fungus. Yellowing marks plants affected by various spores of fungal diseases. It is imperative to note its appearance at the initial stage, since the plant may not be saved. The appearance may be due to too much humidity or excessive watering. The reason for the death of some leaves may be the natural process of growth and aging. If yellow leaves begin to appear in the lower or middle layer of leaves, do not treat everything around

You need to pay special attention when most of the flower turns yellow.

How to care for a plant at home to save it?

If a florist notices the blackening of the leaves of the “female happiness” flower and determines the reasons, then to effectively treat the blackening plant, he needs to perform the following steps:

  1. Treat the crop with a fungicide. Instructions for dilution and use are on each package.
  2. Raise the air temperature to +26 degrees.
  3. Remove the plant from the pot and inspect the roots for fungal damage. If there are rotten parts, cut them off and treat the cut areas with crushed coal.
  4. Reduce the frequency and abundance of watering by half. The next moistening of the soil should occur after a third of the soil layer has dried.
  5. Use complex fertilizers. In spring, fertilizing is applied every week. In summer, you can apply once every 10 days. During the rest period, it is allowed to feed the crop for its complete restoration - once a month will be enough.
  6. Trim off all affected areas of spathiphyllum.
  7. Spray the plant with water (you can add a growth stimulator to it).

What type of violet should I change to if all else fails?

If no methods help, and the leaves still turn yellow and become pale, it is better to change the variety of violet. Experienced flower growers advise purchasing a hybrid variety that blooms almost all year round or, conversely, produces buds only for a short period of time. It depends on what varieties you can't grow.

Growing violets at home is not difficult if you follow all the rules for caring for them. But it is better for an inexperienced gardener to purchase a more modern hybrid variety, which is less demanding in care. Nowadays, different varieties have been developed that are adapted to different conditions.

Root rot

Root rot

Alarm signal - the violet does not bloom. It can be assumed that a violet has root rot if, with a damp substrate, the lower leaves of the flower, which have lost their elasticity, are flaccid, and the petioles are soft to the touch. The cause of violet root rot is fungi (phytopthora, pythium), and their active reproduction is provoked by the incorrect content of the flower, to be more precise:

  • lack of drainage hole in the pot, excessive watering;
  • poor quality soil (taken from the garden);
  • cooling the soil in the pot;
  • abundant watering on dry soil.

According to statistics, 75% of all violet diseases are root rot. To avoid this unpleasant disease, take the advice of experienced gardeners as a rule - water in small portions in case of violet transplantation and after a forced long drought. Water every few days until the plant adapts after the stress it has suffered.

If you suspect root rot in your violet, do not hesitate, start resuscitating your favorite flower. First of all, remove it from the pot and inspect the roots. The absence of white roots confirms the diagnosis. The next step is to remove the lower leaves and cut off the root part. If there are brown spots on the stem cut, cut the stem higher. The stem that is not damaged by rot has a purple tint. If the entire stem is damaged by rot, destroy the plant.

When we reach the healthy part of the stem, remove the lower 1-1.5 cm of leaves, spray with fungicide, leave to lie for 30 minutes and place in a substrate (vermiculite, water, soil) to form new roots. It is better to use moistened vermiculite and put a transparent bag on top of the flower. Take the container with the flower to a cool room and use a fluorescent lamp for illumination. After new roots appear, plant the violet in a new pot filled with soil.

Diseases

Yellowing of leaves can occur due to fungal diseases, which, in turn, are caused by improper care. In this case, you should replace the soil in the pot. Sometimes this is not enough, and the plant is destroyed.

And in conclusion, it must be said why pests appear in Saintpaulias.

Fertilizing violets against yellowing of leaves

Lack of nutrients immediately affects the condition of the leaves. They begin to turn yellow around the edges and dry out. An adult plant during the dormant period requires less feeding than during the active flowering period. But at least once a month you should feed the flower. Well, if the violet pleases you with a bouquet, then you need to feed it twice as often.

With a lack of nitrogen, potassium and phosphorus, the leaves turn yellow. And when there is an excess of them, the plant “fattens” and increases green mass, but does not want to bloom. With a lack of potassium, the leaves may turn yellow, become spotted and curl. Phosphorus deficiency inhibits the development of the root system and prevents budding. The violet will not bloom until it receives the entire nutritional complex.

The composition of fertilizers should be alternated. This will help avoid imbalances in violet nutrients.

Fertilizing is carried out at the root and by spraying. The concentration of foliar fertilizers should be reduced by no less than 2 times. Beginners are not recommended to use violet sprays. The leaves of the plant are very sensitive to moisture. And the sun's rays falling on water droplets on the leaves can cause severe burns. This is expressed in unsightly yellow spots.

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Feeding

For the formation of a plant, the presence of a sufficient amount of nitrogen in the soil is very important, while phosphorus is needed for good flowering. Many novice gardeners actively feed violets with phosphorus fertilizers, forgetting about nitrogen fertilizers. Fertilizer “Emerald” is specially developed for Saintpaulias, including protecting their leaves from yellowing. Try using it.

A little about the regularity of feeding.

In December-February, a one-time feeding is needed; in April, May, September, October - 3 times; in June, July, August - 4 times a month.

Fertilizers alternate between organic (mullein, bird droppings) and mineral fertilizers. Organic ones are prepared a week before feeding. Dry cow dung (100 g) is poured with a liter of water. After a few days, the infusion is filtered and diluted in three liters of water. The remaining grounds can be diluted with water twice more, increasing the fermentation period.

Bird droppings (also dry) are diluted with water (20 g per 3 l) and, after infusing for several days, they are immediately used for fertilizing. First, Saintpaulia is watered with plain water.

Infectious diseases of violets


Infectious diseases include those that invade a weakened plant. Therefore, the cause of the disease is always improper care. In order to protect Saintpaulia from diseases, you should first of all not bring infection with new plants. Quarantine serves as a warning.

The plant can be weakened by:


Under such conditions, rot appears on the stems or roots of the violet.

, areas where late blight can penetrate. This is one of the most dangerous infectious diseases of Saintpaulia when temperature and humidity are not maintained. The causative agent of the disease is transmitted by soil

Therefore, it is important to disinfect all purchased and homemade soil.

Another disease that can destroy all violets in a short time is called powdery mildew.

, which begins as a harmless white coating of dust, ends with the death of the plant. Powdery mildew on violets requires prompt treatment. You cannot take layering from such a specimen.


For treatment in the early stages, you can use special drugs such as Topaz or Saprol. As soon as you notice the powdery coating, cover the plant with sulfur powder, seal it tightly with a bag and create a temperature of 25 to kill the mycelium. You can spray it using a suspension of soda and laundry soap. If powdery mildew on a violet is severe, destroy the plant and carry out preventive treatment for the remaining inhabitants of the window sill.

The difference between infectious rot is that it spreads to all plants in cramped conditions. Non-infectious diseases can destroy one plant due to improper care.

Problems of violets and their solution - video

It’s hard to pass by a blooming Uzumbara violet in a store. The variety of colors of simple and double flowers will not leave a real gardener indifferent. An even horizontal rosette of soft leaves and a bouquet of violets in the center will decorate any windowsill. But it’s not for nothing that the plant is considered to be quite capricious.

Errors in care lead to the leaves turning yellow, falling off and the recently beautiful flower dying. When deciding to purchase this miracle, you should study the agricultural technology of growing and the rules for caring for violets.

Article outline

Pests and diseases

Violet leaves immediately respond to infection. The edge of the leaf blade becomes brownish and gradually turns yellow completely. If the violet is sick, then measures need to be taken urgently. The plant does not tolerate spraying well, so methods of combating diseases must be chosen based on these conditions.

Powdery mildew

Pollination of flower leaves with fungicides is used against powdery mildew. Suitable for violets are Bayleton and Saprol. The drugs must be used according to the standards specified in the instructions. After pollination with dry matter, it is recommended to cover the flower with polyethylene.

Late blight

With late blight, violet leaves become soft, change color to brown-yellow and fall off. To combat late blight, the plant needs to be replanted. Cut off damaged roots and leaves with a sharp knife. Treat the roots with a fungicide. If the procedure is carried out at the initial stage of infection, the flower can still be saved.

Fungus

The fungus Fusarium causes a disease called fusarium. Most often it affects plants whose agricultural practices are disturbed. Temperature changes and excess moisture lead to rotting of petioles and leaf blades. The disease quickly spreads to the root system. The disease can be identified by the appearance of brown spots on the leaves and rotting of the petioles.

To combat the disease, you need to get rid of the contaminated soil, treat the plants with a fungicide, removing previously damaged parts. It is easier to combat fusarium with preventive measures. reduces the ability of the fungus to divide cells. If you use the drug regularly when watering violets, the problem can be avoided.

Other pests

The most common pests of violets are mites and mealybugs. To combat them, it is better to use effective insecticides. The drug prepared according to the instructions is applied to the plant by spraying.

To prevent the leaves from turning yellow from the applied moisture, the treatment should be carried out away from sunlight. And you can return the plant to its place only after the leaves have completely dried.

How to treat diseases of violets such as spots on the leaves? Why do violet leaves turn yellow? What to do if violet leaves turn black? The above problems are the result of improper flower care. They can be cured if care is normalized. But in some cases, flower resuscitation is necessary. So, experts explain how to treat diseases of violets due to improper care. Photos of diseases are attached.

Factors that cause violet leaves to turn yellow

Changes in the appearance of the plant that are not associated with natural processes indicate that the plant is not comfortable enough, that is, the cause of yellowing foliage may be disease, the appearance of harmful insects, or (and this is the most common reason) improper care.

If the problem is a disease or pests, then you will have to use special drugs to solve the problem. If it’s about caring for the plant, then you need to analyze all your actions and understand where the mistake was made.

High air temperature

It just so happens that most often we place plants on the windowsill, without thinking about how bright sunlight and radiators affect the plants. If your windows face the sunny side, then the violets on the windowsill will be uncomfortable, since they do not tolerate direct sunlight. Gradually all the leaves burn out and die, and the soil dries out very quickly.

The best place for a violet would be near a window, but not on a windowsill. The plant must be protected not only from direct sunlight, but also from heating devices. On the other hand, if the windows of your apartment face north, then the violets can be left on the windowsill, but you should still control the heating devices so that the soil in the pot does not dry out.

If drying out of the earthen coma could not be avoided, then resuscitation measures should be carried out - place the flower pot with violet for 30-40 minutes in a container with settled water at room temperature, this time is enough for the earth to be completely saturated with moisture. Over-watering will not occur, because with such watering the flower consumes exactly as much liquid as it needs. After this, place the plant in a more comfortable place where it will not be too hot and where there is no direct rays of the sun.

Why violet leaves turn yellow - poor lighting

With insufficient lighting, not only the leaves of the plant turn yellow, but flowering also stops, and the violet may completely wither. Therefore, if you are afraid of overheating, you should not put the plant in the shade. It is important to maintain balance in everything; violets, like most plants, need diffused light; being in the shade inhibits the processes of photosynthesis.

If there is always not enough light in the room, then you can install a special phytolamp above the plants - this will provide enough light, but will not lead to overheating.

High air humidity

Violets do not welcome high air humidity; in such an environment the plant turns sour and rotting processes may begin.

Sometimes inexperienced gardeners place plants in the same group that require completely different conditions, and wonder why some flowers feel great while others inevitably die. Violets are just those plants that do not need additional moisture; regular and very careful watering is enough for them, in which water will not get on the leaves and flowers.

The room where the violets are located must be regularly ventilated (while avoiding drafts). If, nevertheless, the cause of yellowing of the leaves is increased humidity and the process of decay has already begun, then you should immediately replant the plant in fresh soil and in a new flower pot.

Indoor violet leaves turn yellow due to poor soil quality

Different plants require different soil. Some prefer a higher level of acidity, while others, on the contrary, feel best in calcareous soil. Now in flower shops you can choose any soil without the hassle of preparing the soil mixture yourself.

Besides. If you collect and breed violets, you can additionally purchase indicator paper, with which you will monitor the quality of the soil. By placing such an indicator in the water after watering and seeing a blue color, you can assume that everything is in order - the bud remains alkaline. But the pink color indicates an increase in acidity levels.

Violets are planted in small flower pots; the soil is depleted quite quickly, so the plants must be replanted annually. If you prefer to replant plants not in store-bought soil, but in garden soil, then for violets, collect soil under a birch or linden tree, add just a little ash or crushed chalk to it. Thus, you will get a soil that is as close as possible to what is sold in flower shops.

Violet leaves turn yellow due to incorrect dosage of fertilizers

We have already said that in a small flower pot the soil is depleted quite quickly, so regular fertilizing during the flowering period is simply necessary. The trouble is that sometimes gardeners, due to inexperience, abuse fertilizers, apply them at the wrong time, or use the wrong additives. All this can also lead to yellowing of violet foliage.

For full development, plants need three main elements: nitrogen, phosphorus and potassium. Nitrogen promotes leaf growth, phosphorus and potassium regulate flowering and root health.

A lack of potassium can lead to yellowing of the leaves, an excess of nitrogen can cause the same symptoms and also cause a lack of flowering. To prevent this from happening, purchase a special fertilizer for violets and use it according to the instructions. This will help avoid overdose and provide the plant with everything it needs.

You can use products such as “BioMaster” for violets, “Active”, “Peter Peat” for violets and others.

Overmoistening of the soil is the reason why violet leaves turn yellow

All plants do not respond very well to waterlogging of an earthen clod, but violets perceive it especially painfully. In this case, the unfavorable process begins near the roots and moves along the stems to the base of the leaves; the plant may die literally before your eyes.

This also contributes to the appearance of pests and the development of fungal infections, so the plant must be urgently replanted, changing not only the soil, but also the flower pot. After this, you need to adjust the watering regime so that a similar situation does not happen again. For violets, it is recommended to use drip or “wick” watering, but the best solution would still be to water in a tray - this way the plant can absorb as much moisture as it needs.

Harmful insects

The appearance of yellow spots on the leaves indicates the activity of harmful insects. Examine the back of the leaves - most likely you will find brown spots on it, which are greenhouse thrips that lay larvae on the leaves of violets.

The affected plant must be immediately isolated from the rest and the necessary measures must be taken to destroy pests using insecticides, tobacco or pyrethrum.

What causes the edges of leaves to turn yellow?

These symptoms indicate soil depletion, causing your plant to lack nutrients. Perhaps it's time to replant the violet, or (if you replanted the plant not so long ago) add fresh topsoil and carry out unscheduled fertilizing.

Add soil very carefully so as not to harm the fragile leaves and stems of the plant. Feeding should be done with special compounds that are suitable specifically for violets (we talked about this earlier) and strictly follow the recommended dosage. With heavy watering, the soil can be washed out of the pot, which leads to rapid depletion of the soil and a deterioration in the health and appearance of the plant. This is another reason to water violets through the pan.

Main reasons

The reasons leading to rotting of the leaves, and, as a consequence of the whole violet, can be varied, but several of the most common can be identified:

  • If the lower leaves rot, it comes from the roots. The reasons for this process may be: Overmoistening - excessive watering, as well as residual water not drained from the pan. The correct watering system that suits the climate in the house is the main rule to avoid this situation;
  • Incorrectly selected substrate - very heavy or with the addition of a large number of components that retain moisture. If the soil is heavy, it clumps together and does not allow the roots to breathe, which leads to their rotting. When the substrate contains a lot of moss, coconut fiber or other similar components, water is retained and a “swamp” effect is created;
  • Temperature changes - too low and high temperatures lead to rotting of the roots.
  • Water on leaves after watering. Some gardeners make a mistake when watering and fearlessly spray or water violets directly over the leaves. Water entering the fluffy leaf plates leads to brown spots and subsequent rotting of the leaves. The most dangerous thing in this case may be flooding of the growing point, if it rots - this irrevocably leads to the death of the individual and the maximum that remains is the lateral shoots or leaves;
  • Excess fertilizing - wanting to do better, you can seriously do harm, and when fertilizers lead to yellowing and rotting, this is naturally bad. Flower growers recommend diluting the fertilizer solution at least half the concentration from the instructions, and also fertilizing no more often than once every two weeks with normal watering;
  • The wrong pot size is a big one, just like a small pot is bad. In large flowerpots, there is excess soil that is not entwined with roots; this is where the fungus forms, since the moisture in this substrate is very slowly absorbed by the plant. The problem with small pots can only affect young, growing plants; adults can live in the same pot size for many years. When the plant is cramped, the roots can also rot due to lack of soil and nutrients, and the pinched roots are damaged;

It is very important to choose the right size pot. Gray rot, fusarium - infection by infectious fungi

Gray rot is dark gray spots where parts of the plant begin to rot. Fusarium - an infection that affects the roots; the first symptoms are very easy to miss. The leaves wither and die as if they were dying naturally, but signs of decay appear at the base

Gray rot, fusarium - infection by infectious fungi. Gray rot is dark gray spots where parts of the plant begin to rot. Fusarium - an infection that affects the roots; the first symptoms are very easy to miss. The leaves wither and die as if they were dying naturally, but signs of decay appear at the base.

Important! By initially correctly identifying the cause of rotting, you can save the plant. Incorrect treatment leads to worsening of the condition

In some cases, care errors need to be corrected, but fungi need to be dealt with more seriously.

Growing conditions

Violet needs optimal temperature and lighting. If the temperature changes sharply, this can lead to yellowing of the foliage. Violet must be grown at a temperature of 23-25 ​​degrees. If the room is excessively cold or drafty, this can lead to stains. They negatively affect the appearance of the flower, but do not negatively affect health. In order to eliminate this nuisance, it is necessary to increase the temperature in the room. After a rosette appears on the flower, the yellow leaves are removed.

Excessively high temperatures are detrimental to the plant. This leads to softening of the leaf rosette and yellowing of the leaves. Extensive watery spots appear on the underside of the foliage. The upper part of the leaf turns yellow. If the room temperature is not lowered, this can lead to the death of the plant.

If the light is too bright, the leaves may turn pale. In this case, greenish-yellow foliage is observed, the edges of which curl upward. Violets do not tolerate excessively bright sunlight. That is why it is recommended to place them in partial shade. When exposed to solar radiation, not only yellowing of the foliage can occur, but also burns, which lead to tissue death.

The cause of the pathology may be improper organization of violet growing conditions.

When spots appear on leaves

Spots on violets primarily affect the leaf blade, since it is all covered with delicate fluff. The villi react to external influences, signaling a change in color, first in small areas of the leaves, and then throughout the entire plant.

The primary reason for the appearance of stains on Saintpaulia is external factors. It is enough to change the position of the pot and place it on a more illuminated windowsill, and burns will begin to appear on the flower. And from a draft, a light rim appears, moving over time to the central part of the plate.

Internal diseases of the plant are no less common, one of the symptoms of which is spots. Leaf disease occurs when there is an excess of moisture or severe drying out of the soil. It can develop from a lack of essential vitamins if the wrong fertilizer is used.

The most dangerous cause is considered to be fungal infection due to improper maintenance or transfer from a diseased specimen. It is quite difficult to detect mycosis in the early stages, since the first symptoms appear from the bottom of the lower leaves. In more visible areas of the plant they can be seen in more complex forms.

Another reason why Saintpaulias become spotted may lie in the colony of insects. It’s easy to diagnose unwanted residents - look at the mites themselves or their ovipositors through a magnifying glass. In this case, a characteristic difference from other diseases is the presence of holes in the spot area.

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