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List of the main diseases and pests that threaten balsam. Causes and control measures

List of the main diseases and pests that threaten balsam. Causes and control measures


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Bright flowers, lights, pleasant green foliage, elegant appearance - balsams have long been the desired inhabitants of window sills, loggias and garden plots. A colorful plant requires simple care, to which it responds with an ovary of new buds and a glossy sheen of the leaves. But even this unpretentious plant can get sick or be attacked by parasites.

Insect pests interfere with the normal development and growth of a beautiful plant. It is about pests that can bother the touchy balsam that will be discussed in our article. How to deal with annoying insects and preventive measures to prevent their appearance.

Houseplant susceptibility to various diseases

The main reason for the weakening of the green pet, its wilting and growth arrest is inappropriate conditions or lack of care. Weakened balsam is susceptible to a number of diseases, and it is also an easy prey for various pests.

The second name of the plant is Vanka Wet. This is explained by the increased moisture-loving culture. Its foliage and stems are 50% water. Balsam loves moist soil and air. And these are ideal conditions for the appearance of pathogens. The houseplant is particularly susceptible to the following diseases.

  • Downy mildew. The causative agent is fungi (penetrates into the green parts with moisture). The leaves are covered with a whitish bloom, over time the leaf plate turns black and falls off (you will learn about why the leaves fall and get sick and how to save the flower here). Fungicides (Vitaros, Baktofit) are suitable for treatment.
  • Gray rot. Cause bacteria from soil or water. Signs - brown bloom and gray spots. For treatment, spraying with garlic infusion or Fundazole is suitable.
  • Bacteriosis Watery spots appear on the foliage, later they affect the entire bush. Disease control - removal of the affected parts and treatment with Bordeaux fluid.

Read about why buds and flowers fall off indoor balsam, what solutions and preventive measures are, read our article.

The main dangers: photos, diagnostics and methods of dealing with them

On a green indoor handsome man, ticks are usually found - small pests that feed on juice. Also, thrips, whiteflies and aphids are dangerous for balsam. In more rare cases, nematodes and sciarids appear on the bush.

Mite

Symptoms of a spider mite infestation can be seen, examining the back side of the leaf or internodes. Typical signs:

  • a thin white film enveloping the sheet;
  • small dots on the sheet plate;
  • greens lose their shine;
  • flowering loses its intensity, there are few buds, flowers are dull.

Reference! A cyclamen mite can also start on balsam. When infected, young shoots, buds and leaves are deformed. Growth points die off in balsam, it dies. Any acaricides are suitable for the fight - Apollo, Demitan, Neoron, Sunmight and others.

Heat and dry indoor air are considered the causes of mites. The fight consists of a series of sequential actions.

  1. Cut off damaged parts.
  2. Treat the bush with soapy water. Dissolve laundry or tar soap in water, lather. Apply the resulting foam to the balsam for 5-7 minutes, then rinse.
  3. Chemical treatment. Vermithek and Fitoverm come up. The dosage is indicated in the instructions.

Aphid

It is very difficult to see signs of infection on a plant. But on the walls of the pot there will be distinctly types of a parasite nest from a whitish bloom. You can identify aphids on balsam when you examine the root or when transplanting.

The insect's danger is that it sucks the plant sap from the leaves. Because of this, their deformation occurs, and growth stops. The process of photosynthesis is disrupted or stopped, as a result - the balsam does not develop and dies. How to deal with aphids:

Primary set of actions
  1. Removal of dried, damaged fragments
  2. Transplanting balsam into a new soil.
Folk recipes for sprayingIngredients:
  • tobacco leaves;
  • onion peel;
  • chopped wormwood.

Take the components in equal proportions (1 tbsp each). Pour boiling water over, leave for 12 hours. Use for spraying. Sprinkle the soil with ash, tobacco dust to prevent re-infection.

ChemicalsSuitable preparations:
  • Fas;
  • Decis;
  • Actellic.

Dosage and application depends on the size of the balsam (see instructions). Before processing with chemicals, the soil must be covered with a film.

Aphids breed in dry soil. The reason for the appearance is improper irregular watering.

Whitefly

The insect resembles a small white moth. The pest lays eggs on the back of the leaf, later larvae hatch from them, which can eat a whole balsam bush. Over time, the skin of the larvae hardens, this makes them invulnerable to the action of certain chemicals. To eliminate individuals, re-treatment is required at intervals of 5-6 days.

Attention! The whitefly secretes a sticky, sugary liquid that contains the pathogens of the sooty fungus.

Symptoms of an attack - the leaves lose their green tint, yellowish spots appear on them, they dry and fall off en masse (you can find out why the leaves of indoor balsam turn yellow and how to revive the plant here). The causes of the appearance of the parasite are warm, damp and stale air.

How to deal with a pest:

  1. Mechanical. Whitefly eggs can be washed off with water. In this case, both sides of the sheet plate must be processed.
  2. Removal of the bitten parts.
  3. Destruction of the pest with insecticides: Karbofos, Actellik, Tanrek. These are poisonous preparations, the processing of which can only be carried out in the air (on the balcony, on the street).
  4. An alternative to chemicals is garlic tincture. Grind 1-2 slices until gruel is formed, pour boiling water over, leave for 2-3 hours. Spray the bush 2 times a day

Thrips

The danger lies in 2 factors: weakening of the bush and possible infection with the mosaic virus (thrips carry pathogens). You can diagnose the problem by noticing the deformation of the young foliage at the top and a change in the growth point. The edges of the leaves dry up; movement of small insects is noticeable in the center of the corolla.

Important! Thrips appear through the contaminated soil. Also, the pest can be brought in with a bouquet of flowers, it can also be carried by the wind into an open window. The fight lies in the treatment of the bush with insecticides.

  • Tanrek. 1 ml for 5 liters of water or 2 ml for 10 liters of water.
  • Actellic. Use for copious contamination. 1 ampoule of the drug per 1 liter of water.

Repeat spraying after 5-6 days.

Podura and mushroom gnats

Puffs are earthen fleas. They almost do no harm, live in soil, feed on organic matter. Poduras pose a danger to seedlings and cuttings: they gnaw at the roots. You can notice them when watering, as individuals begin to jump.

Sciarids or mushroom gnats are small, dark midges. Low hazard to the plant. The larvae are white, their head is black. Also damages the root system of weak or small plants.

The reason for the appearance of these insects is common - excessive watering. You can reduce the population by drying out the soil in a pot. For complete destruction, the preparation Thunder 2 must be mixed into the soil.

Preventive measures

The main aspect of prevention is proper care. It is advisable for a novice florist to familiarize yourself with the presented recommendations that will facilitate care and make it competent.

  1. Balsam requires moisture. Water the bush regularly and abundantly. To prevent waterlogging of the soil in the pot, you need to make good drainage. You can take pebbles, gravel, vermiculite and other components to choose from.
  2. When spraying, water should not linger on green parts, flowers.
  3. It is better to make top dressing in the fall. Fertilizers should contain phosphorus and nitrogen.
  4. The plant must receive enough sun.
  5. In winter, move the balsam pot to a cool place (15-17 degrees), reduce the number of watering.
  6. In spring, young and old shoots are pinched, which do not grow and do not give flowers (read about why balsam does not bloom, as well as tips on care and cultivation, read here).

Balsam is a popular houseplant with vibrant flowers and glossy greenery. Differs in increased moisture-loving. In such conditions, fungal diseases can develop. Improper care weakens the bush, and it becomes a target for pests. A tick, thrips, whitefly, aphids can parasitize on balsam. You can eliminate them with acaricides (for ticks) and insecticides.


Watch the video: Biological control of pests (May 2022).


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