How to get rid of spider mites in a greenhouse

Often, gardeners growing plants in greenhouses are faced with various insects that can destroy the crop in the bud. Among such pests is the spider mite. Fighting spider mites is not such an easy thing. This microscopic insect has great vitality and is able to survive in any conditions.

What gardeners do not come up with to get rid of the tick, what they do not water and spray. Most often, the pest settles in greenhouses where cucumbers are grown. We will try to tell you about the methods of destroying the spider mite, many of which have long been used by experienced gardeners.

Description of the pest

The fight against a tick will be successful if you know that this particular pest has settled on your cucumbers:

  1. The insect belongs to the arachnids, has 4 pairs of legs.
  2. The whiskers and wings are missing.
  3. The mite can be red, yellow-green, or orange.
  4. It is difficult to see the pest due to its negligible size: an adult tick is no more than 1 mm long. Although it is rare for gardeners, there were two times more specimens.
  5. The habitat is the lower part of the leaf on which a cobweb is woven. Experienced gardeners notice the pest in the greenhouse by the light small dots on the upper surface of the cucumber leaves.
Comment! The web is so strong that when spraying it is impossible to break through it, the solution does not get inside.

The tick multiplies instantly. Judge for yourself: one female is capable of laying 400 eggs per day, and she lives for at least 30-50 days. Mites appear from the eggs, which after a while lay eggs by themselves, hiding them in the cobweb.

The development cycle continues continuously. Even in autumn, females manage to lay eggs. The pests that appeared in the greenhouse in the last warm days winter well, and everything starts anew.

Important! The temperature is from 25 to 32 degrees, and the humidity is from 35 to 60% - favorable conditions for the reproduction of spider mites in the greenhouse.

Tick ​​control

Settlements of a pest that multiplies at lightning speed harm plants. Therefore, gardeners, especially beginners, are interested in how to deal with spider mites in a greenhouse.

There are different ways to get rid of the pest:

  • biological;
  • folk;
  • agrotechnical;
  • chemical.
Attention! As a rule, in recent years, gardeners prefer the cultivation of environmentally friendly products, therefore they use chemistry only if other methods do not give the desired result.

Biological method

This method of controlling mites in a greenhouse is safe for both plants and humans. What can be used to destroy the pest:

  1. Acaricidal preparations... For their manufacture, mushrooms are used that live in the ground and are capable of destroying the pest. Due to the selective action of the drug, other insects do not die.
  2. Natural enemies... In nature, there are predatory mites, the main food of which is vegetarian insects. They do not touch the plants.
  3. Repellent plants... There are a number of plants whose scent repels spider mites. First of all, tomatoes, garlic, onions.

Folk ways

The fight against a malicious pest in the greenhouse has been carried out by gardeners for a long time. Folk methods sometimes work more efficiently than chemical preparations, if they are applied in a timely manner, without waiting for the mass reproduction of pests.

How to get rid of a spider mite using decoctions and infusions of herbs, medicines? Consider a few of the most common recipes:

  1. You will need about 1.5 kg of potato tops. After cutting into small pieces, the green mass is poured with 10 liters of water. After 3 hours, the product is ready for spraying the pests. During processing, only adults die, and the eggs remain. Therefore, the procedure is repeated several times every 3-5 days until complete destruction. With a filtered solution, you need to process the lower part of the sheet.
  2. Take 400 grams of chopped tomato tops, which are poured with 10 liters of clean water. For the best effect, boil for 30 minutes. For every two liters of the resulting broth, add 30 grams of laundry soap. Spraying leads to the destruction of not only aphids, but also other insect pests.
  3. The husk of the onion will relieve not only the wireworm, but also the tick. Put the husk in a bucket halfway and fill it with hot water (not boiling water!). The spider mite remedy will be ready in 24 hours. Strain well before spraying. For better adhesion of the solution, you can add liquid soap.
  4. A solution prepared on the basis of cow parsnip works well. Leaves, roots and stems are harvested before or after flowering and dried. For 10 liters of water, 1 kg of dry raw materials is needed.
Attention! By treating greenhouse plants with dope, wormwood, garlic, goat's rue and other fragrant plants, you can also destroy the harmful insect in the greenhouse.

Gardener tips:

Agrotechnics in the fight against ticks

Compliance with agrotechnical rules allows you to grow greenhouse plants without diseases and pests.

What needs to be done:

  1. The spider mite does not like high temperatures and high humidity, but such conditions are just right for cucumbers. It is not difficult to increase the humidity; it is enough to spray the plants several times a day.
  2. The soil in the greenhouse must be dug up in spring and autumn.
  3. Cleanliness is the key not only to human health, but also to the safe growth of plants. Plant residues should not be left in the greenhouse, in which pests and disease spores may remain.
  4. Weeds are removed as soon as they appear.
Advice! The use of agrotechnical means of tick control at the initial stage gives an excellent effect.

Plant protection chemistry

As a rule, gardeners use chemical means of control in extreme cases, when they have already used folk or biological methods, but nevertheless the spider mite continues to feast in the greenhouse.

Modern chemical production produces many drugs that can be used to treat the greenhouse and the plants themselves. Recommended:

  • Fitoverm;
  • Aktofit;
  • Kleschevite;
  • Agravertine;
  • Akarin;
  • Vertimek.

If it was not possible to get rid of the spider mite with the above drugs, you can use stronger means, such as Actellik and Bi-58.

The agricultural technique of using chemicals has its own characteristics, which must be adhered to so as not to harm plants and humans:

  1. Before processing, the soil must be watered abundantly.
  2. Green potassium soap is added to the solution from any chemical for better adhesion.
  3. When spraying, it is undesirable to get on the roots. But the soil around the plant and the greenhouse can be safely processed.

A spider mite in a greenhouse will not die after a single treatment, since chemicals do not affect eggs. Re-spraying is carried out after 10 days, but with a different drug. And so at least 3-4 times. You can get rid of a tick forever if you use the fight against it in a complex way, using all the control measures.

Warning! Ripe vegetables that have been exposed to chemicals cannot be used for food.

Pest in the greenhouse:

Tillage and greenhouses

Spraying greenhouse plants will not give the desired result if the ground and walls of the greenhouse are infected with pests and disease spores.The fight against spider mites in the greenhouse should be started with soil treatment. As a rule, this parasite hibernates in the ground, and in spring it will begin to multiply again.

You can destroy the insect in the soil and on the surface of the greenhouse with the help of pesticides or special sticks that are dropped into the ground. When water gets on them, the sticks dissolve, kill pests around them. Penetrating through the root system into the plant, they make the juice inedible for the spider mite.

Today, manufacturers offer gardeners sticks, which, in addition to the poisonous substance, include complex fertilizers:

  • Plant Pin;
  • Etisso;
  • Substral;
  • Polish sticks "Green House".

If over the summer it was not possible to cope with the problem, then in the fall you will have to completely replace the soil, and treat the greenhouse itself with the following compositions:

  • 5% copper sulfate;
  • 4-6% aqueous solution of bleach;

A greenhouse treated with vitriol or bleach can be fumigated with sulfur bombs. The gas is able to penetrate into any crack, so the pests are killed by 100%.

Let's summarize

Any diseases and pests cause a lot of trouble for gardeners. If you do not take timely control measures, then the spider mite will leave you without a crop. All your material costs, physical efforts will be in vain. Therefore, the plants in the greenhouse must be constantly inspected to prevent spider mites from multiplying.

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