Indoor flower anthurium: diseases. Why brown spots appear on the leaves of anthurium Potted flowers anthurium and their diseases

Indoor anthurium - a native of tropical thickets of southern countries. Being placed in a cramped pot and climatic conditions completely alien to him, he feels like a slave and often gets used to a new environment for a long time. You need to try hard to provide him with comfortable conditions, necessary not only for life, but also for magnificent continuous perennial flowering. Anthurium flower, some call it differently, male happiness, is very demanding to care and needs constant attention to itself. At the slightest deviation from the norm, problems can arise in the form of various diseases, which the flower usually tolerates very hard. This article will be about methods of treating anthurium diseases.

There are fungal, viral and non-infectious types of anthurium disease.

Anthurium cannot be cured with folk remedies, you just miss the time, and it will die. Therefore, remove and destroy all affected parts of the plant. Spray the flower with any fungicide. The most effective drugs are Fitosporin-M, Alirin-B and Fundazol. Carry out the spraying procedure on outdoors or in non-residential premises. Place the pot with anthurium in a large plastic bag, treat it with a fungicide, close the bag tightly and leave it in this state for 15 to 20 minutes. Then open the package, carefully remove the flower, let it dry and only then put it in place. Repeat the treatment after 7-10 days. Watch the diseased plant - you may need a third treatment in a couple of weeks.

fungal diseases

The most common fungal infections are stem rot, root rot, septoria, fusarium, powdery mildew and rust.

For the treatment of fungal diseases, fungicides are used, special preparations for diseases of indoor flowers, and only them!

stem rot

If you regularly fill the flower, if after watering the excess water stays in the pan for a long time, if the room temperature is below the permissible level, the anthurium will almost certainly get sick with a disease such as stem rot. Watery black spots will appear on the stem. The rot will gradually spread to other parts of the plant, the leaves will begin to rot. The affected parts of the plant will die. On the affected areas, under a magnifying glass, small sporangia are visible, initially white, then blackening.

What to do? Isolate the diseased flower. Cut off all affected parts of the plant. Spray the plant with a fungicide, such as phytosporin, twice a week apart. Check the plant for pest infestation. Perhaps he was attacked by thrips. If the disease is running, the flower must be destroyed. Check the living conditions of other flowers to prevent their diseases.

root rot

frequent watering, low temperature, poor drainage in a flower pot and other deviations from the norm can cause this disease. When the roots of the plant rot, its leaves turn noticeably pale, and then turn yellow and begin to fade. Roots become soft and rotten. The root shell peels off from its middle, the roots look frayed.

If the disease has not yet started, sharply reduce the watering of the plant, reduce the humidity in the room. Cut off dead leaves. Remove the plant from the pot, free the roots from the ground, cut off its damaged and rotten parts, and if there are areas of a healthy root system, plant the anthurium in a new pot with suitable healthy soil. Don't forget drainage! Water the plant with Fitosporin-M or Alirin-B preparations. Wait, the result should be positive. If the disease is running, and rotting has covered all the roots of the anthurium, it will not be possible to save the flower, it will most likely die.

Septoria

Brown spots appear on the leaves irregular shape with yellow or brown border. Under a magnifying glass on the spots, you can see tiny black dots of sporangia.

What to do:

Severely affected leaves are plucked and removed. Reduce air humidity. Stop spraying the plant with water. Feed the flower with fertilizer flowering plants. Check for insect pests. If there are none, spray with Fitosporin-M or copper-containing preparations.

Fusarium

With Fusarium on Anthurium, mass wilting of the leaves begins. They turn yellow and dry, and then fall off. A white coating with a pink tint appeared on the root neck. A very dangerous disease. The infection is spread by water when watering plants, when air humidity and temperature are too high.

If the disease is in its early stages, try spraying the ground part of the plant with a fungicide, and apply a soil pesticide to the soil. Repeat the treatment after 5 - 7 days. But, keep in mind that effective way There is no cure for Fusarium. A diseased plant will most likely die and will need to be destroyed!

powdery mildew

At anthurium, the leaves began to turn yellow and curl. Their defeat is similar to chlorosis. But if the leaves not only turned yellow, but became noticeably smaller, the internodes grow shorter and shorter, then this is not chlorosis, but powdery mildew. Light gray spores are clearly visible on the back of the leaves - this is a fungus. With severe infection and no treatment, the leaves will dry out completely. What to do? Treat! using fungicides. (for a description of the treatment of fungal diseases, see above)

Rust

If light spots appear on the upper side of the sheet, and on the lower side - brown spots-pustules, most likely your anthurium has contracted a fungal infection called rust. On the underside of the leaves, spores develop rapidly, the spots merge together and the leaves dry completely. This disease must be treated with fungicides. (for a description of the treatment of fungal diseases, see above)

Viral diseases

Bronzing virus

If the leaves of your pet began to partially discolor, wrinkles and small holes appeared on the surface - it is possible that the anthurium has become infected with the leaf bronze virus. This disease is usually carried by thrips from other affected plants.

Treatment, unfortunately, does not exist, the diseased plant will have to be destroyed. Inspect the rest of the flowers for infection with thrips, if necessary, fight these pests with insecticides (actara, actellik).

Noncommunicable diseases

Chlorosis

If you notice that on the green leaves of your pet in bright light they show through yellow spots- this is evidence that the plant lacks nutrition, in particular magnesium and iron.

Feed your flowers regularly with an ornamental flowering plant fertilizer containing these elements.

Smallpox vegetable

If yellow-green bulges and yellowish ring-shaped spots suddenly began to appear on the beautiful leaves of your anthurium, it means that you made a mistake somewhere in caring for it. This happens at low ambient temperatures and high humidity. If, moreover, you forgot about the regular feeding of anthurium, he will not have the strength to resist such a disease as smallpox.

Correct the mistakes in caring for the plant and patiently wait for the results.

If the leaves of your anthurium began to grow unevenly, twisted, became ugly and humpbacked in appearance, most likely your anthurium fell ill with enation. If the temperature often fluctuates in a room with a flower, there are drafts, then it is too humid, then it is too dry - then this is the reason. To be honest, the real cause of this disease is still not well understood. Try to establish proper care for the plant, and everything should return to normal.

Other problems with improper care

1. Dark spots and dots appeared on the leaves. Perhaps your pet is cold. Move it to a warmer and brighter place. Do not water more often than necessary.
2. The leaves turn yellow, their edges dry out. Perhaps the flower fell under the direct Sun rays and got burned. Remove the pot from the sun or shade the blinds, create diffused lighting.
3. The tips of the leaves are blackened. Perhaps an excess has formed in the soil nutrients especially calcium salts. Transplant your anthurium into new soil with a suitable potting mix.
4. Leaves turn yellow and wither. The room temperature may be below comfortable. Optimum temperature during the growing season 22 - 25 gr., during the winter dormancy 16 - 18 gr.
5. Lack of flowering. There are many reasons: low light, poor soil, large pot, low humidity and others. Read about the reasons for the lack of flowering in anthurium in the corresponding article on our website. Eliminate these causes and get lush bloom for many years.
6. Anthurium leaves turn black. There are several reasons. Perhaps the water you use for irrigation is too hard; perhaps the water is too cold; perhaps it is chlorinated, did not have time to settle. Or perhaps you are not removing excess water from the pan. She stagnates there, and this provoked rotting of the roots. Soften hard water with a drop of lemon juice or acetic acid. Water should have a temperature not lower than room temperature, and be settled. Water infrequently, but plentifully so that excess water seeps out of the drainage holes at the bottom of the pot into the pan. After some time, remove the water from the pan.
7. Anthurium leaves turn yellow in a number of cases: waterlogging of the soil; lack of soil in the pot, the roots stick out; drafts, lack of lighting; poor water for irrigation; bad soil; inappropriate ambient temperature. Analyze your conditions for keeping a tropical guest, eliminate errors - and everything will return to normal.
8. Anthurium leaves curled into a tube. Perhaps too bright lighting provoked the anthurium to turn on the protective mechanism. Position your flower out of direct sunlight and the leaves will unfurl again.
9. Black spots appeared on the flowers. Perhaps you sprayed your plant carelessly, and large drops of water fell on the flowers. You need to spray the plant with a small sprayer carefully, without falling on the flowers. Another such embarrassment is obtained when the soil mixture is incorrectly selected for the flower - there is a lot of calcium in the ground. This soil will have to be replaced.
10. Thickenings and tubercles appeared on the roots of anthurium. This means that the anthurium was struck by root nematodes. This disease is not treatable. Destroy the plant along with the pot.

Some General Tips for Preventing Common Diseases

Conclusion

As you already understood, anthurium at home requires special attention. But if you are not afraid of difficulties and strictly follow all the rules of its comfortable content, success is guaranteed to you! Anthurium will thank you for your love and delight you with its exotic beauty during magnificent flowering!

Any tropical flower guest, getting into our apartments, becomes a slave. He is forced to live in a pot that was given to him, drink the water that is offered to him and get used to a climate that is not at all like his own. In such situations, without proper care, the flowers can start to hurt. Anthurium, known for its whimsicalness, is no exception. At the first sign of a flower disorder, immediately take up treatment.

Why do flowers get sick

There are several reasons behind the diseases of anthurium. Experienced flower growers distinguish three of the most important:

Diseases and treatment at home

A non-infectious disease manifests itself on the leaves of "male happiness".

Here are the main ones:

Leaves turn yellow

Causes:

Leaves turn black, leaf spot appears

Causes:

• soil overflow;
• improperly selected soil for planting;
• during transplantation, the root was damaged;
• was kept in a room with drafts.

All these consequences of improper care at home can be corrected:

• water moderately with water at room temperature;
• ideal special flower primer with polystyrene chips;
• provide your pet with an optimal climate.

Anthurium flower turns black and dries

Improper conditions of detention, lack of vitamins and minerals forces the flower to refuse to bloom, and if there are already rudiments, get rid of them. Such is the law of nature.

If the first distress signals appear, check the flower for insects, treat the greens with a 0.3% solution of karbofos. Don't forget to cover the ground. Such processing is carried out twice with a run-up of two weeks.

Check for rotten roots. Found - delete without regret. Pour fresh earth.

The main insect pest of the flower - "flamingo" is aphid. It sucks out all the nutrients, depriving the plant of strength. To get rid of, you should treat the leaves of anthurium with a solution of peretrum or karbofos. For the best result, processing is carried out several times.

infectious diseases

Septoria is one of the most common infections. For treatment, cut off the affected leaves and treat the plant with copper sulphate.

Take care of your pet, take care of it, and it will delight you with healthy foliage and bright flowering for a long time.

Video: care tips and protection against anthurium flower diseases

The anthurium plant comes from the southern latitudes, therefore it needs special conditions of detention. Its natural habitat is tropical rain forests. He feels great in greenhouses, but home conditions are often unsuitable, and then the flower starts to hurt. Outwardly, this is expressed in the fact that the leaves begin to turn yellow, dry, spots appear on them, the anthurium does not bloom and grows slowly. Sometimes the plant is affected by infections and pests. The cause of anthurium disease is not always easy to determine, and sometimes there are several of them at once.

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Proper care of anthurium at home

Among indoor plants Anthurium is considered quite whimsical. The necessary conditions for keeping anthurium at home are as follows:

• light, loose, slightly acidic soil, freely passing water and air;
• temperature in summer 20-25°C, in winter - not lower than 16;
• constant high air humidity (not lower than 75%);
• bright diffused light without direct sunlight (such conditions are provided when the anthurium is located on the east or west window or at some distance from the south);
• moderate but sufficient watering with soft warm water;
• absence of drafts.

In the conditions of a city apartment, the anthurium needs additional air humidification, soil acidification, regular top dressing, sometimes heating and careful protection from drafts and sudden changes in temperature. Anthurium does not tolerate stagnant water in the soil, this leads to rotting of the roots and the spread of infections. Therefore, he definitely needs a layer of drainage. The water from the pan is drained after watering.

Failure to comply with any of these conditions can lead to a deterioration in the appearance of the plant, disease and even death. What exactly the anthurium suffers from is determined by the appearance of the plant, while comparing the conditions of its maintenance with the required ones.

Problems Caused by Incorrect Content

The causes of anthurium diseases are most often associated with improper conditions of maintenance and care, less often with the attack of pests. Unsuitable conditions lead to the fact that the leaves of anthurium turn yellow, wither, spots appear on them. It not only spoils appearance, but it can also lead to the defeat of anthurium by fungi, bacteria and microbes. Then it will take not just restoration, but the immediate destruction of uninvited guests and the treatment of the flower.

The gradual death of the lower leaves of anthurium should not be considered as a problem or disease. If new healthy leaves appear, the plant grows well and blooms, the reason for wilting is natural aging.

If individual leaves turn yellow and fall off on a healthy anthurium, this does not always indicate a disease.



The leaves on the flower turn yellow, wither, dry

The reasons why the appearance of the plant deteriorates are varied. You can identify them by the nature and speed of propagation of the defect. Anthurium leaves may turn yellow and dry for several reasons at once (insufficient or excessive watering, cold, drafts or low air humidity).

External signs	Cause	Solutions
The leaves turn yellow evenly, the stems are pale and elongated, the plant grows weakly and does not bloom.	lack of lighting	Artificial supplementary lighting so that the daylight hours are at least 12 hours
The leaves turn yellow, the anthurium does not bloom and grows slowly	General nutritional deficiencies	Complex regular feeding
Leaves grow deformed, irregular in shape, dry out	Dry air and soil	Increasing the intensity of watering, humidifying the air
Leaves turn yellow, entirely or in uneven spots, while the veins remain green (chlorosis)	Lack of iron and magnesium in the soil	Top dressing with mineral complex fertilizers
The leaves turn yellow at the tips and along the edges, a dried edge appears	Low temperature, drafts	Moving the anthurium to a suitable place, additional protection from the cold with a warming planter
The tips of the leaves turn yellow, then turn brown	Insufficient air humidity	Air humidification
Blackened leaf tips	Watering with hard water with an excess of calcium	Changing the source of water for irrigation or softening it
The stem rots	Excessive deepening of the plant during the next transplant or excessive watering	Transplanting a plant, reducing watering

In city apartments tap water it can be too hard, this is not suitable for watering anthurium. You can determine the hardness of water using a special indicator (the indicator should be at a pH level of 5.5–6.5) or by household methods. The water is unacceptably hard, if after washing glassware and sanitary ware remains cloudy, lime deposits and flakes regularly accumulate in the kettle.

Uneven yellowing of anthurium leaves indicates a lack of mineral supplements.

Water is softened in several ways. The best option- pass it through a special filter softener. But even without buying special equipment, the problem can be solved with improvised means:

1. 1. Add a small amount of acid (citric, acetic) to tap water.
2. 2. Freeze water in the refrigerator. A transparent bottle of water is placed in the freezer for several hours. You need to get it when part of the water turns into ice. Unfrozen water is drained, it collects a large amount of salts, and thawed water is used for irrigation.
3. 3. Settle water in a large container, use only upper layer. The method is suitable for moderately hard water.
4. 4. Add chopped needles or bark of coniferous trees to the anthurium soil. This simultaneously acidifies the soil and makes it more permeable, which is very beneficial for the plant.
5. 5. Water the anthurium with distilled, melted or rain water. In the latter case, disinfection is desirable, since spores of pest fungi or bacteria can enter the soil when watering.

Air humidity can be increased by regular spraying of plants, wiping the leaves with a damp sponge. To maintain a humid environment, a humidifier is placed on the windowsill next to the anthurium, decorative fountain or just an open container of water. The container itself with anthurium can be placed on a wide pallet filled with pebbles, decorative stones or moss. This design not only moisturizes the air, but also decorates the window sill. But it is important to ensure that the water in the pan does not rise above the bottom of the plant pot - this will lead to waterlogging of the soil and rotting of the roots. Humidification is especially important during the heating season, when the heat rising from the battery creates a dry microclimate.



Spots appear on the leaves

Yellow speckled spots appear on anthurium leaves due to watering errors.

It happens that the leaves of anthurium turn yellow and do not dry completely, spots of various colors, sizes and shapes appear on them. Their appearance will help determine the reason why the flower suffers:

1. 1. Black and dark brown spots - excessive watering or excessive accumulation of moisture on the leaves.
2. 2. Pale, light dots and spots - watering with hard water, excessive watering.
3. 3. Brown dry spots, holes on the leaves - hypothermia of the root system due to cold air, drafts, watering cold water.
4. 4. Yellow dry spots, dried patches, twisted leaves - sunburn. It is easy to determine: spots appear only in places where bright sunlight has hit, especially if there was moisture on them. In this case, water droplets work like a magnifying glass - the sun's rays act more intensely.
5. 5. Black or dark dots that increase to a spot, and then spread to the entire sheet - low temperature.
6. 6. Yellow, brown spots on leaves with clear boundaries that increase in size and appear on neighboring leaves - infectious diseases such as anthracnose or septoria.

It is important to recognize in time whether defects are caused by improper care or infection. In the first case, the improvement of conditions will immediately change the situation: the spots will stop increasing in size, although the damaged areas will not recover. In case of an infectious disease, a change of scenery will not be effective, it is urgent to isolate the diseased plant and begin its treatment.

Root system diseases

Signs of trouble in the root system of anthurium do not appear immediately. But sooner or later they are reflected in the appearance of the plant. The flower becomes lethargic, the leaves turn yellow and die, the neck turns brown, mold may appear in the pot. If there is reason to suspect that the root system is out of order, the plant is taken out of the pot and carefully checked for its condition. The roots of a healthy anthurium are thick, even along the entire length, light beige in color. Rot, an unpleasant smell, darkening or drying of the roots, growths on them - all this indicates a disease.

Anthurium roots may suffer due to improper plant maintenance. Errors include improper watering, unsuitable soil and too low a temperature. For anthurium, both insufficient and excessive watering is harmful. If the flower suffers from a lack of moisture, the roots begin to dry and die off, they can no longer nourish the aerial part of the plant, and the anthurium begins to wither. Cold is especially dangerous for anthurium, combined with stagnation of water in the container. In a flooded plant, the roots begin to rot, infectious diseases occur, such as late blight and root rot.

The root system of anthurium suffers from unsuitable soil. If the earth is too heavy, does not allow air to pass through, the roots begin to rot. The soil should be loose, dry well, and a drainage layer must be made at the bottom.

If the cause of anthurium disease is in the root system, it is cleaned of soil, washed thoroughly and dried. Then the damaged areas are cut off, the sections are sprinkled with crushed coal and the plant is planted in a container with light soil. For better recovery, the roots are powdered with Kornevin. The first two weeks after transplantation, the flower is not fed, and spraying with immunostimulants ("Epin", "Zircon") will come in handy. At this stage, the elimination of the consequences of incorrect content ends. If the roots are severely affected by rot, then treatment with fungicides in several stages will be required.

Fungal diseases of anthurium, methods of their treatment

If the conditions of keeping anthurium are far from natural, the plant's immunity drops, it becomes susceptible to damage by microbes, bacteria and spores of harmful fungi. Plants can also get sick good care when a large number of harmful microorganisms enter the soil, with which the plant simply cannot cope on its own. Many of them develop well in a humid, warm and slightly acidic environment, which is exactly what Anthurium needs. Pathogens die in alkaline, calcareous soil, and it is contraindicated for anthurium. Therefore, the defeat of this plant by infections is far from a rare nuisance.

Any plant recently brought into the house must be kept in quarantine for about two weeks, away from other flowers, and preferably even in a separate room. If it has been infected with an infection or pests, this will help protect the rest of the flowers from diseases.

Home anthurium most often suffers from anthracnose, septoria, fusarium, rust and powdery mildew. These diseases are quickly reflected in the appearance of the flower. As soon as the first signs appear, the plant must be urgently isolated so that the infection does not spread to the neighbors on the windowsill, and begin treatment. If a neglected disease cannot be defeated, the plant is thrown away, and the pot is disinfected.

Infectious diseases to which anthurium is sensitive often damage wild and garden plants. If a flower spends the summer outdoors outside the city, it is important to ensure that the surrounding plants are healthy. For prevention, it is desirable to regularly treat anthurium with fungicides.

Anthracnose

Anthracnose - infection of a plant with spores of the fungi Kabatiella, Colletotrichum and Gloeosporium. They spread through the air, are brought into the house with other plants or soil. Insect pests also act as carriers of this group of fungi. The fungus itself begins to actively develop in a humid environment and can easily infect other house flowers. The main risk factors for infection for domestic anthurium are: temperature above 25 ° C, too much humidity, lack of nutrients, low acidity of the soil.

With this disease, black or dark dots appear on the leaves of the anthurium, which multiply and grow into spots, first yellow, and then brown. The leaf becomes thinner and becomes brittle, dries and dies. The infection spreads rapidly, spreading to neighboring leaves. If the disease is not treated, the plant will die.

A sign of anthracnose is the appearance of focal spots with a black dot in the middle.

At the first sign of anthracnose, the plant must be isolated, all affected leaves removed, the flower washed under a tap and transplanted into soil etched with potassium permanganate. After that, you can start processing fungicides. The most effective of them are those containing copper oxychloride or copper sulfate. Suitable finished preparations are Bordeaux mixture, Previkur, Fitosporin, Acrobat MC, Fundazol and the like.

The treatment is done in two or three stages with an interval of 7-9 days, depending on the drug used. It is important to follow the manufacturer's instructions, as a single exposure may not work - the spores will survive, and under favorable circumstances, the fungus will begin to develop again. Thus, the destruction of the fungus will take from two weeks to a month. At this time, the air temperature is maintained no higher than 20 ° C, watering and spraying of anthurium are reduced - in a dry and cool environment, mushrooms will die faster.

The pot of the infected plant is disinfected. The spores of the fungus die at high temperatures, so the clay pot is calcined in the oven, and the plastic ones are thrown away; they will not withstand high temperatures. But freezing as a disinfectant does not make sense, fungal spores can withstand sub-zero temperatures for a long time.

Septoria

An external sign of septoria is the appearance of spots on the leaves with a yellow border.

Septoria is caused by fungi of the genus Septoria. It spreads mainly through other plants or is brought into the house along with the soil.

External signs of septoria in anthurium are the appearance on the leaves of brown, brown, grayish spots with a yellow border. The spots increase in size, begin to spread to neighboring leaves. The disease develops especially actively at high humidity and room temperature.

Since septoria, like anthracnose, is a fungal infection, the treatment will be similar. The plant is isolated, the affected areas are removed and treated in several steps with a copper-containing fungicide.

Fusarium

Fusarium is also called Fusarium or dry rot. Its pathogens are fungi of the genus Fusarium. The spores are dispersed by the wind, and for quite a long time they are able to withstand the absence of moisture and low temperatures. They can get into home anthurium from other plants, through the soil, when watering, if rainwater is used for it without disinfection. The spread of the fungus is facilitated by high temperatures, stagnation of moisture in the ground and close proximity to infected plants.

Outwardly, the signs of fusarium do not appear immediately. The fungus develops underground and primarily affects the root system. The roots darken, reddish-brown spots with a bloom appear on them, they begin to rot. Further, the vessels of anthurium are affected, moisture and nutrients gradually cease to flow to the leaves. If the disease develops, the leaves of the anthurium begin to evenly turn yellow and fall off, the plant becomes lethargic. The base of the stem darkens, it can no longer support the entire mass of foliage, and the plant leans to the side. Near the ground on the stem, you can see a grayish coating.

The fight against fusarium combines spraying the aerial part of the plant with a fungicide and treating the root system. For processing, drugs such as Fitosporin-M, Vitaros, Baktofit, Trichodermin, and other compounds containing copper compounds are suitable. The earth is disinfected with a solution of potassium permanganate and boric acid. Alkaline formulations are not suitable for fighting anthurium disease. If the roots of the plant can no longer be saved, you can try to save the upper part of the plant by cutting and rooting it.

Rust

Rust is a disease caused by the fungus Puccinia anthirrhini. With it, spots appear on the underside of the leaf, then thickenings, rusty-colored pads form, in which spores ripen and crumble from there in the form of a powder. From above, the leaf is covered with yellow and brown spots, dries up and dies. Provokes the development of the disease low temperature and excessive humidity.

The first manifestations of rust are dark patchy spots on the underside of the anthurium leaf.

A diseased plant is treated with fungicides, the most suitable of which are Topaz, Ordan. It is advisable to burn damaged leaves - the disease is actively transmitted through plant debris.

Downy mildew (downy mildew)

Downy mildew manifests itself as yellow and brown dry spots on the upper side of the leaf. The leaf is deformed, wrinkled, eventually dries up and dies. On the underside, patches of gray plaque form, which constantly grow. The disease passes to the stem, it cracks and becomes covered with spots, the plant is bent. The infection spreads through other plants, most house flowers are very susceptible to it. Its causative agent is fungi from the class Oomycetes. Risk factors for anthurium - high humidity in a cold environment, a sharp change in temperature. This often occurs in autumn and spring when hot days alternate with cold nights.

A good prevention of fungal diseases of anthurium is the reduction of spraying during the cold season. In winter, the air is moistened delicately, trying to avoid an excess of moisture. It is better to put an open container of water next to the flower.

The infected plant is immediately isolated and treated. Against downy mildew, the Vectra and Topaz preparations have proven themselves well. Spraying the leaves with a weak solution of antibiotics (penicillin or streptomycin) will have an additional effect.

Anthurium pests

Pests appear on the flower from the outside - from other plants, sometimes an already infected anthurium is brought into the house, simply without external signs of damage. Unlike fungal diseases, insect pests are much easier to detect. Anthurium is most often affected by such pests:

The appearance of pests on anthurium is visible to the naked eye.

Pest control begins with their removal. Insects are removed with a brush, toothbrush or cotton swab. The shield is carefully picked up with a needle so as not to damage the plant. Anthurium is thoroughly washed with soapy water, to which you can add chopped onion or garlic. The solution should not be a strong concentration - an alkaline environment is unfavorable for anthurium. Sometimes this washing is enough. But sometimes pests go unnoticed or have time to lay eggs. To consolidate the result, insecticide preparations are used or folk remedies are used.

Modern insecticides industrial production have a wide spectrum of action and are used against many types of insect pests. These drugs include Aktara, Fitoverm, Biotlin and others. When working with chemicals use rubber gloves - all insecticides are poisonous and can irritate the skin. After a day, the plant is washed with clean water. One treatment may not be enough, after a week the trunk and leaves of the anthurium are examined for signs of vital activity of pests. If there is suspicion, it is better to repeat the treatment. All this time, the sick anthurium is kept in quarantine so as not to infect other house plants.

As folk remedies in pest control, rubbing the plant with alcohol, calendula tincture, tobacco infusion or garlic decoction is used. The principle of operation is the same as with purchased insecticides. In this case, you should not take precautions so carefully, but the result may not be as effective.

To reduce the risk of diseases, you must comply with the conditions for keeping anthurium. But it's important not to overdo it. Too high temperature and high humidity will not only weaken the plant, but will also contribute to the development of fungal or bacterial diseases.

Anthurium is a guest of a distant country with a different climate and requirements for living conditions. Pampered by a long warm period with fairly bright lighting, a light composition of the substrate, and sufficient air humidity, under new conditions, exotics often become the object of disease and pest damage. Outwardly, the disease most often manifests itself on the leaves. Therefore, it is very important to correctly determine what got anthurium sick, how to treat leaf diseases. The descriptions, photos and drawings below will help you determine the cause and find the right solution when treating your pet.

What are the diseases of Anthurium and the causes of their occurrence

Violation of sanitary standards

The root cause of the occurrence of diseases is the attitude of the owner to the acquired houseplant. A flower needs time to adapt to new conditions. The plant needs individual monitoring to exclude the presence of infection.

To keep your flowers healthy, it is necessary to isolate all newly purchased indoor plants for 2 weeks from other crops, keep them in quarantine conditions. During this period, healthy plants adapt, continue their growth and development. Patients will show external signs of the disease.

Disease groups

Diseases of indoor plants are divided into 2 groups: non-infectious and infectious.

Noncommunicable diseases are the result of a violation of the content of the flower in conditions that do not meet its requirements. Such diseases do not affect other plants. When the source of the disease is eliminated, they recover without causing damage to other crops.

infectious diseasesand I cause pathogenic infections that necessarily affect other plants. Changing hosts, pathogenic fungi, bacteria and viruses multiply rapidly and in a short time can destroy almost all nearby plants.

Elimination of non-communicable diseases

Non-communicable diseases include: violation of environmental requirements - draft, low temperature, dry air, improperly selected substrate, top dressing, watering, natural aging of the plant.

Problem: Leaves curl all over the plant.

The appearance of the leaves speaks of problems

Cause and solution of the problem:

Improper care of anthurium;

Violated requirements for environment. The plant is located in a draft. Not enough lighting or too bright scorching lighting. Maybe the air is dry, and watering is plentiful. When the requirements are normalized, the flower recovers.

Problem: Anthurium leaves began to turn yellow.

Leaves turn yellow

Cause and remedy

• If the lower leaves gradually turn yellow.

The natural aging of the plant is manifested. It is enough to carefully cut off the old leaves with a disinfected tool. The plant needs rejuvenation. Yellowing leaves can cause disease.

The second cause of yellowing of the leaves are diseases: chlorosis, gray rot

• At young plant leaves turn yellow all over the plant.

Possibly too bright lighting. It is enough to shade the plant or rearrange it in a less lit place.

yellowing leaves on anthurium

• The green color turns pale, the leaves become yellowish.

Lack of lighting. In the autumn-winter period, additional illumination is necessary.

The leaves of the plant turn pale from lack of light.

Problem: Anthurium leaves dry out

Drying anthurium leaves

Cause and remedy

• Violation of temperature and humidity conditions.

– Possible cause is a draft. Move the plant to another place or eliminate the cause of the draft.

– There may be dry air in the room. It is necessary to install humidifiers, systematically humidify the air without getting drops of moisture on the flowers.

– Insufficient watering. If the soil is dry to the depth of the phalanx of a finger, watering is necessary. In the future, normalize the watering of the plant.

Problem: spots of different colors and diameters appeared on the leaves of the anthurium.

Brown, yellow spots. From an excess of light, anthurium leaves get burned.

Cause and remedy

• Certificate sunburn. Relocation or shading required. It appears as brown spots randomly located on leaf blades. Move to another place and create the optimal temperature regime.

Problem: young leaves are too large with an unusual pale green color. Leaves take on different colors.

Cause and remedy

• An overabundance of fertilizers, especially nitrogen.
• Violation of the amount and ratio of nutrients in the soil.

Additional watering is needed to flush out excess fertilizer. Adding agrovermiculite to the substrate. Reduce doses or temporarily eliminate top dressing. If the rules for feeding are not violated, a lack of trace elements is likely. Carry out top dressing with a half dose of microelements (buy in a store).

Problem: the tips of the leaves dry out throughout the plant, sometimes the leaf turns completely black.

Cause and remedy

• Perhaps the humidity of the air and soil is greatly reduced;
• roots lack pot space;
• little oxygen is supplied to the roots;
• the soil is overly fertilized, contains an increased amount of calcium.

If the humidity is normalized, but the tips continue to dry, sometimes gradually capturing the entire leaf blade, it is necessary to transplant the anthurium into a new, properly prepared substrate, reduce the doses and reduce the number of top dressings.

Problem: the inflorescence dries and blackens.

Cause and remedy

• The natural flowering period ends;
• Too bright lighting, possible sunburn;
• The flowers got water when spraying;
• The humidity regime of air and soil is disturbed.

Cut off diseased inflorescences with a bract. Shade the plant. Normalize the humidity regime. In the pallet, expanded clay or pebbles should be kept constantly wet. Exclude when spraying and watering the ingress of water on the inflorescence and the bedspread.

Problem: Anthurium leaves lose turgor, wither, but do not fall off.

Cause and remedy

• Too frequent and abundant watering;
• Damage to the root system by fungal rot.

The plant must be urgently transplanted into another disinfected pot or other flower container. Change the soil completely. Rinse the roots in warm water with a weak solution of potassium permanganate. Cut off diseased roots. Dry for 20-30 minutes. Treat with root and land, observing all the rules.

Infectious diseases of anthurium

If all the violations made when caring for the anthurium were corrected, but the flower continues to hurt, and nearby plants began to fall ill, this is clearly an infectious lesion.

Of the infectious diseases, Arturium is most often affected, and most diseases are transmitted through the external environment:

• stem and root rot;
• leaf rust;
• anthracnose (powdery mildew present and false);
• fusarium wilt;
• septoria, etc.

When treating houseplants, it is safest to use biofungicides. They do not harm the health of humans, animals and birds. They can be used in tank mixes with bioinsecticides (against pests). Treat plants with a disease at least 2 times a month. For prevention, treatments are carried out once a month, less often if the plants look absolutely healthy.

Stem and root rot

The plant as a whole quickly fades. Depressed dark spots appear on the surface of the roots and near the basal part of the stem, covered with a white or gray dense coating. This plaque is the mycelium of the fungus, which forms asci with spores (small black dots are visible) that infect other plants. The stem is watery, rotten when touched.

Dense gray mold appears on leaves and even (in advanced cases) on inflorescences. Typical for young plants recently transplanted into new containers with fresh substrate.

Causes and treatment

The mycelium of the fungus, growing in the soil, is introduced into the root system. Infection occurs during transplantation into infected, poorly disinfected soil, poorly prepared planting capacity. The cause of the disease may be abundant watering with poor drainage, lack of ventilation.

For treatment, remove the plant from the pot. Replace thoroughly decontaminated substrate and planting container. Examine the plant, cut off all the affected roots and leaves. Wash the roots in potassium permanganate, treat according to the recommendations with biofungicides:

• root;
• planriz;
• phytodoctor;
• phytocide;
• gaupsin.

You can spray the above-ground mass with the same preparations or use biofungicides in tank mixtures:

• trichodermin;
• phytosporin-M;
• hamair;
• Alirin and others.

leaf rust

The causative agent is a group of rust fungi that have the ability to long time maintain viability on infected plant debris.

rust on anthurium

External manifestation of the disease

Loose thickenings are visible on leaf blades and stems orange color. The brown-rusty shade determined the name of the disease. With a strong infection, the leaves and the whole plant dry out and fall into the shortest time.

Causes and treatment

Transfer of spores from other infected plants. The content of plants in conditions of violation of the temperature and humidity regime. Too frequent and abundant spraying. Lack of ventilation. The plant can bend to one side due to damage to the stem.

• To prevent fungal diseases, anthurium leaves are wiped with a 1% solution of Bordeaux mixture on both sides.
• Sick leaves and shoots are torn off and burned.
• For treatment, the same biological products are used as for protection against rot. The diseased plant is sprayed 2 times a month.

You can use chemical fungicides Topaz, Ordan, Acrobat. Be careful. The drugs are poisonous. Spraying should be done in separate room in compliance with the measures of personal sanitary protection.

Powdery mildew in anthurium

The causative agents of anthracnose or powdery mildew (false and real) are a group of peronospore fungi. The spores of the fungus have increased ability be preserved on plant residues in harsh environmental conditions.

External manifestation of the disease

With a local lesion, a white-grayish pubescence appears on the lower, and then on the upper sides of the leaf, like a slight coating. With severe damage, the plant acquires a chlorotic appearance. violated external structure plants (leaves shrink, internodes shorten).

Causes and treatment

The main reason is high humidity and temperature regime(higher or lower than optimal). When keeping the plant in conditions of low temperatures, refuse spraying. Air humidity and high temperatures can be reduced by ventilation without cooling drafts.

For treatment, rubbing the leaf blades with a 1% solution of Bordeaux liquid or a solution of systemic contact chemical fungicides - Acrobat, Topaz, etc. is used.

It is safer to use biofungicides for spraying and incorporation into the soil during irrigation:

• gaupsin;
• trichodermin;
• planriza;
• gamaira;
• pentophage;
• bactophyta;
• pseudobacterin.

The use of biofungicides will provide maximum effect when applied as recommended.

Fusarium and Septoria

Fusarium and Septoria wilts infect plants upon contact with infected soil and with air currents saturated with spores. Fungal spores are highly resistant to high temperatures and some chemicals which makes disease prevention difficult.

Anthurium - diseases (septoria, chlorosis)

Fusarium damage to a flower Male happiness

Causes and treatment

Failure to comply with the phyto-sanitary regime when buying new plants. Violation of the requirements for plant transplantation. Do not allow the soil coma to dry out with abundant watering.

• Of the chemicals used to treat plants and soil, Vitaros, Fundazol, Acrobat, etc.
• Of the biofungicides, the same tank mixtures are used as for other fungicidal lesions of anthurium.

Dear readers! You got acquainted with the external manifestations of the main non-infectious and infectious diseases of anthurium. Non-communicable diseases with the normalization of basic requirements for the environment and proper care curable. Infectious diseases, spreading many times faster, affect nearby growing plants. These are mainly fungal infections, each of which has its own characteristics. With proper diagnosis and protective measures, plants can be saved. But if the defeat is extensive, better plant destroy.