Sticky spots on the leaves of orchids: methods of treatment and prevention of occurrence

Sticky spots on the leaves of orchids: methods of treatment and prevention of occurrence

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Diseases of indoor orchids, grown at home, are not so rare. Unfortunately, gardeners, their indoor orchid can get sick even if all the rules of care are followed. Oddly enough, sometimes orchids can get sick as a result of excessive care. "Phalaenopsis" is especially resistant to diseases, but even for such persistent orchids some diseases become fatal.

The most common indoor orchid diseases are non-infectious diseases. As a rule, their occurrence is associated with gross violations of the rules of care and orchid growing technology at home. However, a large part of the diseases is associated with microorganisms and their toxic effects on the plant. Diseases can not only cause a general weakening of plants, but also their complete death.

General information

Often flower growers are faced with the formation of sticky spots. Their appearance is not always pathological in nature and sometimes is the release of nectar on the surface of young leaves and sprouts. This phenomenon is called "outside of flower nectar." He has several reasons for the manifestation.

Under natural conditions, such sticky nectar can be secreted by the plant in order to attract pollinating insects. Such insects use sweet and tasty nectar for nutrition, and in return carry out the destruction or deterrence of various pests of orchid plants. This is why the plant produces sticky, sweet droplets.

However, when growing plants at home, the formation of this nectar can help attract aphids, as well as domestic ants. Domestic pests can cause significant harm to indoor orchids and their flowers.

If the situation with the appearance of such a sticky coating on the plant takes place, then you should try to determine the cause of its appearance as soon as possible. The formation of plaque as a result of the isolation of simple nectar by an orchid may require the cessation of plant nutrition, as well as their watering. Perhaps the plaque on the leaves was the result of overfeeding the plant, and the orchid secretes drops of sucrose. As a rule, most often at home on the leaves of indoor orchids a sticky coating appears as a result of pathological activity of parasites or the appearance of diseases.

Sticky leaves

As a rule, the florist notices white plaque or drops on the leaves of a room orchid almost immediately after the appearance. A significant part of the leaves of the plant becomes sticky, and the discharge can be represented not only by drops, but also by spots or bloom.

Quite often you can observe a white coating, which is accompanied by sticky drops on the leaves. To understand why such droplets appeared on the leaves, what can be done to treat the plant leaves from the disease correctly, the nature of the sucrose secretions should be determined.

Sticky drops on orchid leaves

Reasons for the appearance

There are several different reasons that differ in the nature and nature of the harmfulness that cause sticky drops or white coating to form on the leaves. The effectiveness of the treatment of droplets on the leaves of a room orchid will depend on the extent of the lesion and the correctness of the established cause that caused this type of manifestation.

As a rule, most novice gardeners do not set themselves the goal of identifying the exact cause and determining in detail the parasite or fungal infection. However, treatment should be carried out as quickly as possible. Regardless of what caused the appearance of droplets, treatment seems to be a streamlined and standard scheme.

Most often, the reason for the appearance of such external manifestations is the colonization of pests on a houseplant, which can be represented by aphids, scale insects, and earthworms. In addition, a similar picture is observed with gross violations of the regime of maintenance of indoor orchids.

The manifestation of sticky or sugary secretions in the form of drops or spots on the surface of apparently healthy leaves as a result of damage caused by pests is called honey dew. Such dew formed on a plant is a product of the vital activity of insect pests.

As a rule, the integumentary parts of molting aphids adhere to such “sugar syrup”. The danger lies in the possible development of powdery mildew. It is this disease of indoor plants that is characterized by the appearance of first white, and in the severe stages of the disease and black plaque. Such a plaque is the sporulation of a harmful, pathogenic fungus. Sheets with such damage become like smeared with furnace soot.

It should be remembered that the appearance of drops of absolutely any type, except water during the irrigation process, on the leaves of a room orchid is an unnatural phenomenon for the growth and development of a plant. As a result of delaying the treatment process or choosing the wrong scheme, there is always a risk of losing the plant as a result of its death.

How to fix the problem

The following measures show the greatest effectiveness in the treatment of indoor orchids, which must be carried out immediately after the detection of a problem:

  • Replace the irrigation by soaking the plants in a basin twice a month. For this purpose, it is necessary to dilute a couple of tablets against a fungal infection of the type in a basin with warm and clean tap water Alirin-B and then lower the flower pot with the plant in the resulting solution to the level of the stem for 20 minutes.
  • In winter, it is imperative to reduce the watering of the orchid, since excessive moisture can provoke the development of plant parasites or infections, manifested by sticky spots.
  • In the summer, insufficient air humidity indicators quite often cause sticky drops on the leaves of the plant. It is necessary to systematically use a hot shower when taking care measures, and to remove all deposits of plaque and stickiness by hand.
  • A good result was recorded when spraying the plant itself with warm and clean water with the addition of a few drops of the drug Zircon.

If sticky drops on leaflets are associated with the settlement of insect pests, then you should use the manual collection method, as well as use special drugs to control pests.

Care must be taken to shade the plant, since a disturbance in lighting often provokes the appearance of powdery mildew. If the plant is affected by a scab, then it must be isolated, treated with a soap solution or a special type of chemical composition against this type of plant parasite.

After reading the corresponding article on our website, you can learn how to save an orchid without roots.

Preventive measures

In order to protect the plant as much as possible from such unpleasant problems that are not always of a natural nature and can cause significant damage to the health of orchids, regular inspections of all indoor plants should be carried out. If the first signs of the disease are detected in one of the plants, it should be immediately isolated and treatment should begin. A good effect is the treatment of plants with drugs such as "Aktara" or Actellik.

Orchid diseases

Compliance with microclimatic conditions in the room requires special attention. As a result of stress caused by sharp changes in day and night temperatures, sugar droplets in the form of drops may appear on the leaves of the plant. Such plaque is recommended to be very carefully removed with a cotton swab dipped in warm water.

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