Fighting thrips on houseplants using safe methods

Thrips are small, dark colored bugs. Small pests are known to many gardeners due to the fact that untimely control of them can lead to the death of the plant.


  1. What harm do
  2. Types of thrips
  3. By what signs can one suspect the appearance
  4. How to find them on indoor plants
  5. Methods of disposal in an apartment
  6. Folk remedies for the pest
  7. How to avoid the appearance

What harm do

Thrips are small insects that infect indoor and garden plants. If you do not notice their appearance in time, they can lead to the death of the flower.

Insects are different:

  • Short body length;
  • Short running legs with a blister-like outgrowth at the base of each;
  • The abdomen is composed of eleven segments;
  • The wings are distinguished by the presence of two or three veins. Bordered at the edges with a long fringe;
  • The larvae are light, beige or gray in color;
  • The developmental process consists of the stage of egg, larva, imago and adult.

In the process of development, they can have the following impact:

  • In the process of reproduction and development, especially at the larval stage, insects feed on the sap of the plant. As a result, traces of cuts appear on the surface of leaves and stems, which deform parts of the flower;
  • Through bites, they can carry viral and fungal diseases that weaken the plant, and in some cases even lead to its death.
  • In the process of feeding, insects not only mechanically destroy the structure of leaves and stems, but also disrupt the course of photosynthesis. This slowdown can lead to wilting and drying of the flower.


It is difficult to determine with accuracy which species an insect belongs to due to its small size. In addition, in nature, there are both species that feed on plants and carnivores.

The most common types are thrips:

  • The variegated insect is brown in color, 1 mm long. A characteristic pest of many indoor and decorative ones, which causes serious damage not only to leaves, but also to flowers, ovaries;
  • Bulbous is the most common species in the country. Color - brown, dark, size - up to 2 mm. Dangerous for all liliaceae, because it affects the bulbs;
  • Californian is a characteristic greenhouse pest native to the tropics. Especially dangerous for fruits, vegetables, berries and ornamental;
  • Tobacco is one of the smallest species of thrips, less than 1 cm. Sexual dimorphism is clearly manifested: females are yellowish, light, males are dark brown. Typical for warm regions and greenhouses. Threats to many flower and vegetable crops;
  • Rosanny - like Tobacco, does not exceed 1 mm in size. The color is brownish. It affects flowers and leaves of Rosaceae. It amazes both indoor and garden crops.

In nature, there are many different species of these insects. However, first of all, gardeners should be concerned about the question: thrips - how to get rid of? Without appropriate measures, a flower affected by any type of pest may die.

By what signs can one suspect the appearance

At first, it is very difficult to determine the infection with thrips, since insects are secretive and can immediately attack not all plants, but only one.

However, there are a number of signs by which one can suspect a defeat:

  • The presence of small punctures, cuts on the stems and leaves;
  • Foliage discoloration;
  • The appearance of brown or white spots on the back of the leaf;
  • Withering, drying and falling off of leaves;
  • Abnormal external changes in stems, buds and flowers.

The main signs of thrips' vital activity are quite unambiguous, but they can be noticed only with a careful examination of the leaves. In addition, the last sign of presence is sticky secretions and black lumps on the foliage - the waste products of parasites.

How to find them on indoor crops

The first signs of damage are the same for both horticultural and indoor crops.

These include:

  • bite marks,
  • discoloration of leaves,
  • stains and sticky marks on the sheets.

If thrips control on indoor plants is not done in a timely manner, the leaves will die off. In addition, insect secretions can trigger the development of a sooty fungus.

These insects are almost omnivorous, but most often found on Rosaceae, violets, orchids and begonias.

Insects are most dangerous for the fleshy stems of violets. If infestation by these pests is detected, it is recommended to immediately remove the flowering parts and spray with suitable preparations for one and a half months.

Methods of disposal in an apartment

The appearance of these pests scares florists, but they can be dealt with if you know what methods to deal with the problem. The methods of struggle can be varied.

A number of radicals include such chemicals:

  • Agravertin is an insecticide, 10 ml of which should be stirred in a liter of water and sprayed on the flower. After this procedure, the plant must be closed with a bag for a day. After that, the leaves should be washed under a warm shower;
  • Fitoverm is an effective remedy, insecticide, in terms of the nature of the effect and the rules of application, it is similar to Agravertin;
  • Spintor is an insecticide based on natural ingredients. Differs in a mild effect. For application, it is necessary to spray the trunks and leaves with a 0.05% solution four times with a gap of seven days between spraying;
  • Neurotoxins: Apache, Dantop, Mospinal. It is recommended to use it every day in strict accordance with the instructions;
  • Chemicals Bi-58, Marshal and Aktellik are fast-acting, but also dangerous. It is recommended to use them with extreme caution. If used carelessly, drugs can provoke the development of allergies or burns.

First of all, before starting treatment, it is recommended that the damaged plant be set aside from others in order to minimize the likelihood of infection. In addition, it is worth thoroughly disinfecting the surface on which the flower was previously located. Ordinary home disinfectants work well for this.

Folk remedies for plant pests

At the initial stages of plant damage, it is recommended to limit yourself to lighter means. From thrips, the fight with folk remedies will be effective at first.

Common recipes include:

  • Spraying with a tincture of a teaspoon of garlic juice and a glass of water;
  • Another recipe for spraying: pour marigolds in a liter jar, at the rate of 1/2 and let it brew for a day;
  • In a small container, you need to put finely chopped garlic or turpentine, put it in a pot to the flower and cover the plant for three hours with a bag;
  • Pour a teaspoon of freshly picked leaves or rhizomes of dandelions with a liter of heated water and let stand for three hours. After that, the infusion must be filtered and you can start spraying;
  • If the plant has soft or pubescent leaves, it is recommended to spray it with a solution of mineral oils. You can prepare by dissolving two drops of kerosene in water. After processing, cover the plant with a bag for several days. After several days, wash off the solution. It is worth repeating three times in five days.
  • Pour one hundred grams of dried tobacco with a liter of water and let it brew for a day. After that, the mixture must be filtered, diluted with a liter of water and processed the flower.
  • Pour one teaspoon of dry tomato leaves with a glass of water and let it brew for three hours, then filter, add water, bringing to a liter, and spray the flower;
  • Pour a teaspoon of freshly picked celandine flowers with a liter of water and let it brew for a day. Filter the infusion and process the flower.
  • Rinse the flower under the shower, wiping the leaves with a sponge with a solution of laundry soap. Do not wash off the soap, leave the plant like this for several days and cover with a bag on top. After that, wash off the soap and transplant the plant.

Regardless of the method of processing, after the thrips are destroyed, it is recommended to transplant the plant into new soil. In addition, it is worth thoroughly disinfecting, it is better to boil the pot.

How to avoid the appearance of thrips

The best way to get rid of pests is prevention.

So, in order to avoid the appearance of pests, it is recommended:

  • Air the room every day;
  • Monitor the indicators of air humidity in the room;
  • Inspect flowers regularly. This will help to notice the appearance of the first signs of pest activity in time;
  • Fertilizing the soil is necessary, but you should not overuse fertilizers with high percentages of nitrogen;
  • It is recommended to thoroughly sterilize the substrate components before planting;
  • Keep plucked bouquets from the garden as far away from indoor plants as possible so that parasites cannot infect them. The same applies to new plants.
  • It is not recommended to neglect the rules of prevention, since this can protect not only a specific flower, but all green spaces in an apartment.

Thrips are small but dangerous pests of many plants. In case of damage to indoor flowers, it is recommended not to delay the elimination of the problem.

If you ignore the danger, thrips can lead to the complete death of the plant.

About harmful insects and the fight against them in living quarters - watch the video:

Watch the video: Houseplant Pests. Thrips: What are they and How do you deal with them in your plant collection? (January 2022).