General information

Treatment of the greenhouse in the fall against pests and diseases


The seedling pulls up, the snow gradually comes off the ground, and that means it's time to prepare for a new summer season! In April, it's time to think about how to process a greenhouse after winter. Usually, spring greenhouses sprayed drugs from diseases and pests, washPrepare the soil. In this article we will touch on the main points of processing.

  • Question number 1: How to process the soil in the greenhouse in the spring?
  • Question number 2: How to treat the greenhouse in the spring of disease?
  • Question number 3: How to wash the greenhouse in the spring?
  • Question number 4: What is sprayed greenhouses?


In general, the preparation of the greenhouse for the new season begins in the fall. It is important to remove all plant residues, ropes, and equipment from the greenhouse. If this season, diseases were noticed in the greenhouse, then it’s better to burn the crop residues and garter-twine, and replace the soil. Dig up the soil and fertilize.

In the spring, it is possible to prepare the soil in the greenhouse for the new season in early April. After digging the soil is recommended to cover with a dark film or scatter the ashes or peat. So the soil warms up faster, and it will be fashionable to start planting seedlings earlier. In the meantime, seedlings "ripen" on the windowsills, in the greenhouse you can sow early greens: lettuce or radish.

Phytosporin for tillage. Very popular today tool. The drug is diluted, according to the instructions for use (1 st.lozhka 10 liters of water). The resulting solution shed the soil in the greenhouse of the watering can, and also it is used for spring surface treatment of the greenhouse. After irrigation with phytosporin, the primer is covered with a film. Then take off the film, give the soil a little dry and start planting.

How to breed phytosporin (pasta):

  • The instructions say that the bag (100 g) must first be dissolved in a small amount of water (200 ml). Paste is placed in a jar or bottle, pour water and mix thoroughly. The resulting concentrated solution must be diluted before watering. On a 10-liter bucket of water take only 1 tbsp. Spoon (15 ml) of such a concentrate. A solution of phytosporin shed the soil. It does not matter if you did not manage to treat the soil with phytosporin before planting seedlings. It can even be used, the seedlings have already been planted. It is believed that phytosporin does not harm plants.
  • It is not necessary to part the whole pack at once (100 g), you can take half.
  • If you could not use all the prepared concentrate, a bottle or a jar in which it was prepared, you can close the lid tightly and put it in a cool place (about +15 - +18 degrees).

If last season a phytophtora or spider mite was raging in the greenhouse, the top layer of soil (10-20 cm) is recommended to be removed and replaced with fresh.

When to begin processing the greenhouse in autumn

The laborious process of cleaning greenhouses is recommended to be carried out in stages. If this event is postponed until spring, pathogens of phytophthora, scab, cladosporia and larvae of harmful insects may remain in the details of the frame and plant residues, which will increase the risk of the incidence of crops planted next season. To carry out the treatment is especially important if you are not going to replace the soil in the greenhouse.

All planned work should be done in the following order:

  • cleaning plant residues
  • cleaning the ceiling and walls,
  • processing and soil preparation,
  • disinfection of the structure,
  • repair work (if required).

During harvesting, all kinds of garbage, residual tops, rotten fruits are taken out of the greenhouse, remove all unnecessary garter material and supporting pegs, and carry out garden implements. After that, they dig up the ground and level with a rake, while removing the remains of the roots and the larvae that have caught the eye. The path inside the greenhouse is swept up and spilled with water from a hose, the walls are washed with a solution of laundry soap, using a long-handled brush for convenience.

After cleaning the greenhouse should be ventilated. Now you can begin processing. A universal remedy against many diseases is phytosporin. Its solution is sprayed on the walls and soil. But if the problem is caused by a specific pathogenic microorganism or an insect, then it is better to select the preparation for treatment individually.

The better to treat for diseases and pests without replacing the soil

Disinfection of the greenhouse should include the treatment of the soil and the structure itself. If you do not plan to completely replace the soil in the greenhouse, take the trouble to at least remove its top layer (7 cm thick), in which the maximum number of pests accumulate. Biological preparations (Baikal, Trichodermin, Fitosporin, Alirin), steaming of the earth and powerful chemical agents can be used for disinfection.

A good disinfecting effect gives fumigation sulfur checkers.

Steaming is considered the safest and most environmentally friendly method, although it requires some labor. You will have to boil water at the rate of 1-3 liters per square meter of soil. Immediately after that, the ground should be covered with a film for 1-2 days. For the greatest efficiency, the treatment should be repeated several times in a row.

Copper sulphate

Copper sulfate - one of the most popular tools used for processing greenhouses. It acts as an antiseptic and pesticide. With the help of vitriol is the fight against many diseases of horticultural crops. For the skin, this drug is safe, but can cause burns to the mucous membranes, so it is necessary to work using personal protective equipment.

In order to prepare a disinfecting solution, you need to dilute 100 g of dry powder of copper sulphate in 10 liters of warm water.

Experienced gardeners are advised to add one tablespoon of white vinegar to the resulting solution, the effectiveness of such treatment will increase. The indicated proportions are only suitable for surface treatment. Soil solution should be of lower concentration. It is prepared from 5 g of copper sulfate and warm water. Consumption working composition is 2 liters per square. meter.

Blue vitriol

Iron sulfate can be called a radical remedy. Substance kills everything - both useful and harmful microorganisms. Most often, it is resorted to, when last season the plants in the greenhouse were constantly sick, there was a death of the crop.

After applying this drug, the soil becomes dead. To restore it, it should be treated with biologically active agents, for example, using Baikal, which will give life to new colonies of beneficial soil bacteria.

To prepare a solution, 250 g of ferrous sulfate is diluted in 10 liters of water. The resulting composition should be sprayed all greenhouse beds.

Bordeaux mixture

When bacterial and viral diseases appear in the greenhouse or in the case of severe fungal infection, a Bordeaux mixture of 2 components is also used: copper sulfate and slaked lime. The tool is very powerful, it acts on almost all pests and pathogenic bacteria, fungi. For the qualitative action of the drug, it must be prepared in accordance with the instructions:

  • Taking 100 g of copper sulfate powder, dilute it with 1 liter of hot water and mix until the crystals dissolve. The volume is then adjusted to 5 liters by adding 4 liters of cold water.
  • In a separate container 100 g of quicklime are diluted in 1 liter of water, waiting for the reaction, after which 4 l of water are also added.
  • When both solutions become room temperature, they are combined. To do this, use a wooden stick, which is stirred lime solution to the formation of a funnel and in small portions pour into it a solution of copper sulfate.

The shade of the resulting mixture should be light blue. The finished composition sprayed the frame of the greenhouse and the soil inside it. The prepared solution can not be stored, it should be used immediately after preparation.

The use of chlorine is another effective way to get rid of pathogens and pests in the greenhouse. Such treatment is effective against gall nematodes, black legs, white rot, keels. During autumn processing, a more concentrated bleach solution can be used than in spring.

From phytophthora

Plantation family is especially susceptible to phytophthora. If last season tomatoes in the greenhouse suffered from this disease, it is necessary to carry out thorough processing to secure the next harvest. It is necessary to use powerful disinfectants, otherwise it will not cope with the late blight pathogen.

Effectively proven bleach. Its solution spills the soil, and the deposited sediment process the details of the design. Formalin is considered a powerful tool in the fight against late blight. Previously, it is necessary to dig the grooves on the beds, then pour the preparation there and lightly prikopat. After this, the greenhouse is sealed for 3-5 days. After the specified time, the greenhouse is aired.

Perfectly copes with late blight fumigation sulfur bombs, the number of which is calculated based on the internal volume of the structure. It is necessary to take into account not only the length and width of the greenhouse, but also its height. One piece is designed for 5 cubic meters of space.

Processing of the greenhouse in the fall from diseases and pests: video

Features of the spring preparation of the greenhouse for planting

The main condition for compliance with the rules of planting seedlings or sowing seeds in the spring is properly carried out preparation of protected soil ridges, as well as sanitization before planting not only the soil, but also the structure itself from diseases and most common pests. Methods of land preparation in the greenhouse and substances that allow for the highest quality disinfection to get rid of pests and infections may be different. However, it is best to use for this purpose the most modern and effective drugs, helping to disinfect the greenhouse or greenhouse construction and soil with minimal time and effort.

Competently carried out after the winter disinfection not only destroys absolutely all pathogenic microflora, pathogens and who managed to winter the plant parasites in the greenhouse, but also guarantees the production of ecologically clean vegetable or berry products.

Construction Processing Tools

Handle greenhouse construction should be in the early spring. Qualitatively and quickly enough to disinfect a greenhouse or greenhouse is easy, but you must comply with a number of requirements, as well as strictly follow the instructions for use of the drugs and tools used:

  • remove all weed vegetation, plant tying agents and support pegs from the greenhouse,
  • film coating and glass should be thoroughly washed with standard warm soapy water,
  • construction parts made of PVC or metal should be washed with an aqueous solution of vinegar,
  • It is recommended to treat the coating in the form of polycarbonate with a weak pink solution of potassium permanganate,
  • To clean the greenhouse, use extremely soft sponges that are not able to scratch the surface.
  • It is possible to destroy mold and other fungal microflora by means of a 5% solution of iron sulphate.

Currently, several tools are used to quickly and efficiently clean the greenhouse from unwanted microflora:

  • In the presence of a plastic frame, it is advisable to carry out treatment with sulfur checker, gas that is permeating and toxic to pathogenic microflora in the combustion process. This treatment is very effective and can protect against spider mites, mold fungi and other plant parasites or diseases. In the course of processing, precautions should be observed, and after five days, to conduct an active ventilation of the structure.
  • Relatively safe for plants is a spring disinfection method solution of bleach, which is prepared at the rate of 400 g of the drug in 10 liters of water. The resulting infusion should infuse for 24 hours in a cool room, after which spraying of all parts of the greenhouse structure from the garden sprayer is carried out.

Equally important is to conduct a visual inspection of the integrity of the frame and cover the greenhouse design. If necessary, repair or restoration work and replacement of the elements that have lost their integrity with new ones are carried out.

Ground Handling Rules

As a rule, the disinfection of soil in the greenhouse is carried out in the autumn period, directly after harvesting, at the stage of preparing the ridges of the protected soil for winter. However, if necessary, such agrotechnical measures are allowed in the spring period.

The treatment of greenhouse soil in spring is one of the most troublesome sanitary measures, the quality of which depends on the further health of the plants and the level of yield. Most vegetable growers and gardeners use for this purpose well-known and time-tested chemicals, including bleach, lime, copper sulfate and Bordeaux mixture, as well as sulfur. Nevertheless, in recent years, gardeners are increasingly giving preference to less efficient, but absolutely safe, modern and quite popular biologics, which make it possible to obtain environmentally friendly products.

Ways to prepare greenhouses

Part of the work in the greenhouse facilities is carried out immediately after the harvest, but the bulk of the procedures for compulsory processing still produce in early spring. These events can be divided into several groups:

  • cleaning the area under the greenhouse,
  • installation of buildings, if required,

  • decontamination of both the frame and the greenhouse cover,
  • work on the disinfection of the soil and internal parts of the structure.

Timely and regular processing of the greenhouse allows you to get rid of weeds and larvae of insect pests, to prevent the possible infection of plants with various diseases, to ensure future planting with the nutrition they need.

Where does the initial preparation of the greenhouse construction begin?

The start of work is connected with the cleaning of the greenhouse from unnecessary auxiliary devices and the collection of all plant residues with their further destruction. If there were no diseases and pests in the previous season, the tops, roots of plants and fruits that were not harvested in the fall can be left for compost. Otherwise, all this is better burned to prevent the spread of plant diseases in the current season.

Next, you need to inspect the structure for damage and damage to individual structural elements. The rotted wood parts of the greenhouse will need to be replaced with new ones; rusted metal elements must first be coated with a primer and then painted. The transparent coating is cleaned of dirt, the damaged areas are replaced. And in case of leakage at the joints of the structure, all the cracks and cracks need to be repaired.

Work on the disinfection of the frame and cover the greenhouse

For disinfection of the internal parts of the structure it is necessary to make their processing. To do this, use:

  • sulfur checkers
  • hydrated lime,
  • various biological products.

It should be wary of the use of chemicals immediately before planting, because it affects the quality of the crop. Chemistry is best done immediately after the snow has melted a few weeks before planting.

One of the safest and least time-consuming ways of processing is fumigation of the internal space of the greenhouse with the usual smoke from the fire. Carry out this procedure with closed windows and doors, it is desirable if all the design gaps will be carefully sealed.

Sulfur fumigation has long been considered an effective method of fighting insects and harmful microorganisms. Sulfur drafts are laid out on iron sheets and set on fire, after which the greenhouse is closed for several days, and then well ventilated.

Attention! During such processing it is necessary to ensure personal safety, because sulfur vapor is harmful to humans. The works are carried out with respiratory protection by a respirator, acting when the checkers are ignited from the far end of the room, gradually moving towards the exit from the greenhouse.

The method of fumigating with sulfur is good, but nevertheless it is not effective enough in combating plant diseases. To prevent the spread of possible diseases, they usually spray the greenhouse frame and cover it with various chemical means or biological compounds. The most commonly used solutions of bleach and iron sulphate.

Sanitary tillage

The peculiarities of growing in greenhouse conditions include the fact that for many years the same crop has been planted there. This contributes to the development of harmful microorganisms. In severe cases, it is recommended to completely replace the soil in the greenhouse with a new one. For disinfection of the same soil, use methods such as:

The biological method involves a complete replacement of the culture in the greenhouse or planting there sideratov– plants that enrich the soil and inhibit the growth of weeds. Однако использование этого метода не всегда возможно к осуществлению на обычных загородных участках, на которых обычно присутствует тепличное сооружение в единственном числе.

Достаточно распространена обработка грунта в теплице с помощью метода изменения температурного режима. To do this, you can spill the soil with boiling water, which will allow it to disinfect, or give the opportunity to freeze to the ground during frost. This will destroy both insect larvae and various microorganisms harmful to plants.

Of course, disinfection of the soil will be very effective if you use chemical means. From pathogens of diseases and against pests the land can be treated:

  • bleach
  • copper and iron sulphate,
  • formalin
  • creolin.

If there is a specific problem in the greenhouse, it is better to use a drug with a specific effect, which will solve it most effectively. But it should be remembered that treating the soil with chemicals should be carried out long before planting. In this case, the snow from the greenhouse must be removed, the soil at the time of the disinfection should already be sufficiently heated. In addition to chemical compounds, often used for processing and natural means - infusions or decoctions of garlic, onion peel, mustard, tobacco.

Having spent some time preparing the greenhouse for spring, you can save yourself from many problems associated with caring for plantings during the season. In addition, it is a guarantee of abundant harvests.