Monstera Diseases: Causes Of The Major Monstera Diseases. What To Do If Monstera Leaves Turn Yellow Or Black? Plant Care And Treatment At Home

2024 Author: Beatrice Philips | [email protected]. Last modified: 2024-01-18 12:09

Monstera is a beautiful evergreen vine native to South America. She has very interesting leaves, which turn from solid to carved with age. Monstera grows pretty quickly , and with proper care at home after three years it is able to easily occupy half of the room of a standard high-rise building . Despite the fact that this type of vines is unpretentious in care, its defeat by diseases and pests is quite common.

Disease symptoms

There are several symptoms that may indicate that your pet is sick. Many of these signs indicate not only ailments, but also insufficient plant care.

Dark spots

In certain cases, dark spots on the leaves of the vines are evidence that the plant is cold. To remedy the situation, the location of the vine is changed to a warmer one.

In addition, the formation of dark spots on the leaves is often a consequence of the fact that the plant is too waterlogged . In this case, it is necessary to check the root system for rot formation.

If rot has already appeared, it is carefully cleaned off, and the bare areas are covered with activated carbon, dried, and transplanted into the renewed soil.

Also, the leaves of monstera turn black in heavy soil, through which the passage of air is difficult and. The soil, compacted during watering, deprives the vine root system of the ability to breathe normally. Here, an effective solution to this problem will be replacing heavy soil with a lighter one . To do this, you can mix the soil with purchased soil for houseplants.

Leaves turn yellow

Monstera leaves turn yellow for several reasons. In winter, the "pet" is especially sensitive to strong watering and lack of adequate sunlight. In this case, the lower leaves of the vine begin to turn yellow first. For the healing of the plant, it is necessary reducing the number of waterings and installing in the brightest place or organizing additional lighting.

Watering frequency is in direct proportion to the room temperature. For example, if the mark on the thermometer does not rise above 16 degrees Celsius, then watering should be done approximately once every two weeks. When watering, you must use water at room temperature.

After watering, pay attention to the accumulation of water in the pan - after 20 minutes, excess water must be drained. Otherwise, constant contact of the roots of the vine with water can cause them to rot.

If monstera leaves become yellow randomly, then this indicates prolonged exposure to ultraviolet rays. In order to rectify the situation, you just need to choose a more comfortable illuminated place for the plant, but without direct exposure to ultraviolet radiation.

Dry edges

The edges of the leaves dry out due to insufficient watering and dry air. To solve this problem, you need to pour expanded clay into a wide pallet, fill it with water, and place a pot on the expanded clay. Moisture from expanded clay will gradually evaporate and humidify the air. If it is not possible to use this method, you can use a humidifier or put an open container of water near the monstera.

Brown spots

Brown spots on monstera leaves can be the result of burns. In this case, the damaged leaves must be removed, and a more shaded place must be found for the vines, moved away from the window or curtains.

The appearance of brown spots of irregular shape with yellowness along the edges may indicate the defeat of the root system by a fungal infection due to a whole complex of unfavorable factors: waterlogging, low temperature and insufficient lighting.

To save and treat the monstera from the fungus, the plant is transplanted into the renewed soil, having removed the damaged roots before this, and the sections are sprinkled with coal dust. The pot must be selected according to the size of the flower.

In a pot that is too large, there is a high probability of overflowing the plant and disrupting the air channels to the roots. The first watering after transplanting must be done after the top layer of the earth has dried by 2 cm. it is better to use a special antifungal drug "Fitosporin", diluted in accordance with the instructions on the package.

Pests

In addition to diseases caused by fungus and insufficient care, insect pests can often attack the monster.

Ivy scale

This pest spreads at high speed on shoots, adventitious roots and monstera leaves. Very often, the scabbard hides on the inner surface of the leaf and looks like a brown plaque, which is firmly pressed against the leaf.

Signs of damage to the plant shield are: depressed appearance, loss of decorative qualities, yellowness and loss of leaves . Also, the detection of a sooty fungus that occurs on the honeydew formed by the parasite will tell about the sabotage of the scale insect. To eliminate it, wipe the sheet with a cotton pad soaked in soapy water or a piece of soft cloth. As contributing factors will help high humidity with a simultaneous decrease in temperature.

With a high degree of damage, it is almost impossible to fight this parasite. You can try removing the affected areas and treating the plant with a systemic insecticide.

Spider mite

This insect mainly lives on the underside of the monstera's leaf plate. The harm from it lies in the appearance of a cobweb that dries the leaf. The presence of a spider mite may also indicate pale green dots on the leaves, gradually merging into a large spot . Affected leaves take on a pale green color, and then die off.

In order to overcome the spider mite, Fitoverm is widely used , and to prevent its appearance the plant should be regularly sprayed with water and kept in a room with humid air.

The opinions of plant care specialists always boil down to the fact that it is easier to carry out preventive measures than to subsequently fight parasites.

As folk remedies for the control and prevention of spider mites are used infusions of onion peel, garlic, tobacco dust, soap solution . It is allowed to insist and use all these funds at the same time. To create an infusion, a tablespoon of the product is dissolved in a three-liter can of water and insisted for two days.

It is better to use household or tar soap, after rubbing it on a coarse grater and softening it with water . The resulting infusion is diluted 2-3 times with water, filtered and sprayed with the plant.

Care Tips

One of the main conditions for caring for a monster is protect it from drafts and mechanical damage.

• Temperature . The optimum temperature for moderate growth and development of monstera is 16-18 degrees Celsius. It should be borne in mind that with an increase in temperature, the growth rate of a plant may increase.
• Lighting . For monstera, lighting close to tropical conditions is preferable. It is better to choose partial shade or diffused light, avoiding direct sunlight.
• Air humidity . The plant needs humid indoor air. If this is a problem, then spraying the leaves with water or periodically wiping them with a damp cloth will come to the rescue.
• The soil . Monstera grows well when planted in peat or garden soil with sand and humus. It is also necessary to use drainage.
• Top dressing . Feeding monstera is done by applying fertilizers once a week in the autumn-summer period. For this, special mixtures for indoor plants are used.