Tomato seedlings grow poorly and turn blue. The main reasons why tomato seedlings grow poorly

When growing such a wonderful crop as tomatoes, gardeners face a number of difficulties; the most common problem is that tomato seedlings do not grow.

Tomato seedlings require compliance with certain conditions, for example, compliance with a special temperature regime. Immediately after the appearance of the first shoots, the boxes with seedlings are put into a cool place for a week; during the day the temperature should be 16-18 degrees C, at night - 13-15 degrees C.

Then the temperature can be increased to 20 degrees C during the day and 16 degrees C at night. Specified temperature regime observed until the third true leaf appears on the tomato (approximately 30-35 days). During this time, the seedlings are watered 3 times at the root, the third time watering is carried out on the day of the picking, an hour before it starts. The recommended water temperature for irrigation should be 20 degrees C.

After the appearance of two true leaves, the seedlings must be sprayed daily (in the morning) with low-fat milk (1 glass per liter of water), this procedure is a prevention of viral diseases.

On the 12th day after picking, the seedlings are fed with nitrophoska (1 tablespoon per 10 liters of water). Watering is carried out sparingly as the soil dries.

If, under the specified conditions, the tomato seedlings do not grow or grow slowly, then the tomatoes can be fed with a growth stimulant, for example, sodium humate. The solution is diluted to a consistency reminiscent of tea in color and the tomatoes are fed 1 cup per plant.

Two weeks before planting, tomatoes must begin to be hardened by placing them on a balcony or under an open window. First for 2-3 hours then for the whole day. The hardening temperature should not fall below 8-10 degrees C.

Petunia seedlings grow poorly

To each according to his ability
Sometimes seedlings do not grow for a simpler reason. Then, when the roots have completely used up the volume of earthen mixture offered to them, they have filled the seedling container and have nowhere to grow further. In this case, picking is needed, that is, transplanting the sprouts into larger cups or pots. The roots, and with them the above-ground parts of the seedlings, will immediately resume their growth.

Proper nutrition - “developing” fertilizers

At two weeks of age, petunia seedlings already need feeding. If your seedlings are already mature, they grow for a long time in the same soil, in which there is no longer any nutrients, it will not be surprising if the sprouts begin to “slow down”. Petunia does not grow well without regular feeding

Buy liquid or dry fertilizer with a high nitrogen (N) content - this is what is needed most at the seedling stage for the formation of the above-ground part of the plant.

Don't forget about the roots! To develop them, fertilizer manufacturers add phosphorus (P) to their products. Potassium (K) is responsible for budding, flowering and fruiting, so this microelement can be present in small quantities in fertilizers for feeding seedlings.

Petunia seedlings are watered with fertilizer, the concentration of which is 2 times less than indicated on the label (the instructions indicate the ratio of fertilizer and water for adult plants)

It is very desirable that the fertilizer for your petunia seedlings, in addition to the NPK formula, also include other important microelements: iron, boron, magnesium, zinc, etc. But only in chelated form (sometimes in salt form - not very successful)!

Chelates are 2-10 times better absorbed than microelements in inorganic salts. Therefore, when using fertilizers with chelates, you can be sure that the microelements have reached their destination. Microelements begin to act very quickly and you will see the result!

Petunia seedlings are not growing - let's start stimulation

Let’s say you’ve already changed the soil, applied the right fertilizer, and generally fussed with the seedlings like a sack, but the petunia still doesn’t grow well. Then we will apply plan “B” and use the “secret weapon” to stimulate growth - B vitamins. More precisely: B1, B6 and B12.

Dissolve 1 ampoule of vitamin B1 and B12 in a glass of warm water (250 ml). The stimulating composition is ready! If the sprouts are still very small, take the solution into a syringe or pipette and carefully apply 1-2 drops to the seedlings. For adult seedlings, you can use the method of spraying the solution from a spray bottle. Do this procedure once every 7-10 days, alternating vitamins B1 and B12, and watch for increased sprout growth.

Vitamins for petunia seedlings can be bought at the pharmacy.

You can make another, more “killer” solution. Dissolve 1 ampoule of vitamins B1, B6 and B12 in 1 liter of water. Spray the seedlings with this cocktail once every 10 days.

After spraying with B vitamins, even the most stunted sprouts immediately begin to grow. A huge number of new growth points are formed, root formation is stimulated, and resistance to diseases and pests increases. At the same time, the seedlings grow squat, powerful and bushy.

What to do if seedlings in peat pots do not grow?

Peat pots are hollow conical cups. These are dry molded and pressed peat products, they are transportable and have a long shelf life.

Compared to improvised means (plastic, paper or ceramic containers), peat pots– biologically clean house for plants. The pots do not contain pathogenic microflora and weed seeds, and the content of toxic chemicals: heavy metals, pesticide and benzopyrene residues are below the maximum permissible concentrations (MAC) established for soil intended for the cultivation of agricultural crops. Peat is light, clean and safe to use, does not contain weed seeds and pathogens of various diseases of vegetable and flower crops.

Wall thickness good pots 1-1.5 mm, which guarantees the unhindered development of the plant root system along with maintaining the strength of the pot and the ability to quickly decompose in the ground (within 32 days after planting), thereby relieving farmers of the hassle of collecting parts of undecomposed pots when harvesting fields.

100% seed germination;
balanced nutrition of young plants with organic and mineral elements;
growth, healthy development and rapid rooting of plants;
optimal moisture and air capacity of the container for plants;
protection of plants from bacterial diseases;
high survival rate of seedlings due to a fully formed root system;
protection of the root system from damage and drying out during transplantation or transportation;
accelerated plant development due to the absence of the risk of injury to the root system.

But is everything really so rosy?! Based own experience, and also based on the huge number of reviews read on the Internet, I can say that rarely does anyone manage to achieve the above excellent results. There are several reasons:

Pots passed off as peat pots are often made from ordinary pressed cardboard. Cardboard does not decompose as quickly as peat, and this leads to the fact that in the fall, when cultivating the soil, the gardener sees an undecomposed pot with a tangle of roots. The roots of many plants are too delicate and cannot penetrate the walls that are overly compacted by stamping.

Peat containers for seedlings dry out quickly. Therefore, it is difficult to control watering of plants. If you don’t add enough, the plant may dry out. If you overwater it, mold appears on the pot and growing substrate, which has a very adverse effect on the seedlings.

A decrease in soil temperature, which occurs due to the abundant evaporation of water from the walls of the pot, is also harmful to delicate roots. In general, there are pros, there are cons, and the truth is somewhere in the middle. To maintain the benefits and reduce the harm of unfavorable factors, you can do the following:

To make it easier for the delicate roots of the plant to pass through the walls of the cup, you can hole it in several places in advance (this can be done with a regular hole punch).

Wrap each cup in plastic (food grade film is fine).

After purchasing, new cups must be soaked in a solution of humate fertilizer with microelements. This will feed the plants and speed up the decomposition of the cup.

If you decide that your seedlings will be better off in other containers, and don’t know where to put the already purchased pots, then feel free to plant seedlings of plants with a strong root system in them. For example, pumpkin. Its strong roots can easily break through the walls of a glass and such seedlings can be planted directly in a glass. permanent place residence!

Not everyone knows what to do when tomato seedlings grow poorly. The process of growing tomato seedlings at home is quite difficult for those who have not encountered this before or have once tried to do it on their own, but previous attempts were not so successful.

There are several reasons why tomato seedlings do not grow or grow to a certain size and then stop growing. For example, if tomato seedlings grow poorly, then one of the following reasons can be considered:

poor quality soil;
poor quality seedling care.

Poor quality soil

One of the main and obvious reasons for the above process is that you prepared insufficient quality soil before sowing the seeds.

This does not mean that you need to immediately change the soil in which tomato seedlings are already growing. It will be enough to observe exactly what changes occur with tomatoes during their growth. So, if suddenly the tomatoes begin to acquire a bluish tint or the lower edges of the leaves become a little purple, most likely, in this case the soil does not have enough magnesium.

This element is important for the development of the root system of plants. If there is not enough magnesium, then the roots will be very weak, it is difficult for the roots to cope, and the tomato seedlings will not grow. If no measures are taken to enrich the soil with magnesium, you will soon have to say goodbye to hopes for good harvest tomatoes.

Magnesium is quite rare in any substances, so you will have to purchase in advance all special fertilizers that contain this microelement. In order to enrich the soil with it, it will be enough to dilute a certain amount of powder or granules in a certain amount of water. This proportion depends on what concentration of fertilizer you use.

This microelement is no less important for the growth and development of tomatoes during their initial ripening, as well as during the beginning of harvesting. Nitrogen enriches the soil with oxygen and allows both the roots and the plant itself to breathe freely. Thanks to good development root there is an opportunity fast growing excellent tomatoes.

Also, additional symptoms of a lack of nitrogen in the soil are that both the stems of the plant and its leaves become too thin and lethargic.

The lack of nitrogen can be compensated with the help of a special fertilizer called urea. It is usually sold in small packages and in large bags in the form of small granules white. These granules must be dissolved in water. You can use and plain water room temperature, And warm water in order for dissolution to occur faster. In this case, the following proportions must be observed - for 1 tbsp. l. urea will need 10 liters of water. You will need to water all the tomatoes with this solution, and watering is done at the root, and not on the leaves of the plants.

After a few days, it will immediately be noticeable that the plants seem to come to life and become brighter and greener. But if you don’t notice any changes, you can conclude that the reason is poor growth seedlings is something else.

Tomato seedlings: from picking to planting (video)

Poor quality seedling care

If you do not find any deficiencies in the composition of the soil, then you will need to find some other reason why the tomato seedlings have stopped growing or are growing slowly. Then you can understand what to do to ensure that the seedlings are good.

The next factor that may influence the fact that plants, having grown to a certain size, stop stretching and expanding their leaves, may be that you are not caring for them correctly. For example, when watering, there may be an insufficient amount of moisture supplied or, conversely, excessive watering. Neither one nor the other is suitable for growing tomatoes, since they are quite fastidious plants that need moisture, but not in the same amount as, for example, it is needed for good growth of cucumbers or peppers.

Once you decide to sow tomatoes, you need to water the soil thoroughly so that it is very moist.

This is due to the fact that plants cannot be watered before they sprout. And even after this point, watering can only begin on the 5th day after the first shoots appear.

What to do if you cannot calculate the correct amount of water? It will be necessary to check the condition of the soil every day. Also please note Special attention on where exactly the tray with seedlings is located. If it is located on the south side and is on a balcony or window, then the soil will dry out quite often. As a result, you will have to water these plants almost every 2-3 days. If your seedlings grow in a dark and cool place, then they will need very infrequent watering.

Thus, in order for seedlings to grow well, it is necessary to pay attention to the soil in which they are planted and in what conditions they will grow further. In order for the seedlings not to be small, but, on the contrary, to be strong, it is necessary to feed them and water them on time, depending on the condition of the soil. Only after this the seedlings develop very well, and after some time you will not have to solve the question of why the seedlings are not growing at home.

Why seedlings grow poorly (video)

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Seven reasons why seedlings may not grow

Many have had to deal with a situation where the growth of tomato seedlings suddenly stopped. The reasons for this were completely unclear, since visually no problems were noticeable. Each plant is a living organism that requires an individual approach. Thus, if we want to get big harvest, we just need to study everything and understand what the plant is missing.

Growing conditions

The first and most important thing for a plant is the availability of light, water and nutrients. Temperature and air composition play an important role. By limiting tomato seedlings in at least one factor, we will literally force them to survive and adapt to conditions unsuitable for normal growth.

The situation will become more complicated if these conditions change: this can plunge the seedlings into deep stress, because in fact the plant uses all its energy to adapt to survive.

Responding to requests from farmers, I often come and see the following picture: the greenhouse is covered with three films, it is damp, and the temperature is about 15 degrees. Looking at what is happening, I literally begin to sympathize with the plants, because in such conditions the seedlings turn yellow, turn pale and stretch out.

Too much fertilizer

Applying large amounts of fertilizer interferes with the development and limits the growth of the plant, because mineral fertilizers are salts, and their excess creates unfavorable conditions for growing seedlings. A greater danger can be created when a huge number one element dominates.

In this case, the supply of other elements is blocked, which leads to stupor of the plant, because it suffers from an excess of one and a deficiency of other elements. In such conditions, plants turn yellow, develop poorly, and leaves become deformed.

Excess moisture

A large number of moisture also negatively affects the plant:

the root system develops poorly;
oxygen access is limited;
nutrients are in low concentration;
Pathogenic fungi develop in the root zone.

Accordingly, when the sun comes out, our seedlings wither, even though the soil is quite moist.

Unsuitable temperatures

A sharp temperature change, soil temperature less than 15 degrees or a short-term drop in temperature in the seedling compartment below 5 degrees lead to a change in the color of the plant, partial growth cessation, and the manifestation of diseases. Under such conditions, the absorption of some elements is blocked (especially phosphorus). The seedlings are slightly colored purple, the leaves begin to bend towards the trunk.

Lack of light

An insufficient amount of light has an extremely negative effect on tomato seedlings, because the basis of the harvest is laid in the seedling compartment, and with minimal lighting, the first cluster is formed 3-4 leaves higher.

Even from the outside, the brush itself looks weak and sparse. Plants stretch out, get stressed and try to adapt to such conditions, hoping to produce as much harvest as the light allows. This is all formed at the genetic level, so supplementary lighting of the seedling compartment is extremely important.

Poor air circulation

A greenhouse or greenhouse in which there is no air circulation and a musty smell is felt or the boiler is smoking, plants cannot develop normally. Such conditions have an extremely negative impact on their growth and can lead to suffocation or other irreversible consequences. The seedlings take on a pale whitish hue, become very light, become thinner and look weakened.

Growth stimulants

Also important is the use of growth stimulants when soaking seeds. Their overdose helps to block the growth point of plants, so you can only observe the growth of cotyledon leaves without a growth point.

A plant is a very fragile and delicate organism that requires proper treatment. Any mistake or wrong action can reduce our harvest to a minimum. Therefore, it is very important to follow the growing technology and avoid mistakes. It is advisable to seek help from a specialist - this will be a big plus for you, because this way you will be able to avoid mistakes and increase your yield significantly.

Growing tomato seedlings - enough difficult process. Beginners often encounter this problem. Judging by the experience of those whose previous attempts were not successful, mistakes can be avoided as a result. Advice from experienced gardeners will allow you to consider all aspects proper cultivation tomato seedlings. We will tell you in the article what to do if tomato seedlings do not grow well after picking.

There are several reasons why the growth of tomato seedlings stops. To correctly find and eliminate them, it is necessary to consider each of the possible options.

Before you take any action, you must determine the reason, after picking, seedlings do not grow because:

Watering was carried out incorrectly the soil is dry or there is excess moisture. If the reason is not watering, you need to check drainage holes. It happens that novice gardeners forget about drainage; the lack of holes does not allow excess moisture to escape.
Plant development may slow down due to the fact that it is not suitable for tomatoes. priming. This often happens when seeds are planted in the ground from garden beds. The soil may be too acidic or too alkaline, so growth may be stunted.
The reason may be lack or excess of nutrition. Fertilizer application is very good sign growth stimulation, however, should not be done frequently. A large amount of fertilizer will harm the plant.
Growth may be affected diseases or pests. Infected plants do not have enough vigor to develop to their full potential. After transplantation, the bushes experience stress; if diseases or pests are involved, development will stop.
If tomatoes slow down their development after picking, it means it was not done correctly. The roots are severely torn, damaged or bent. Also, during transplantation, if the roots are poorly compressed, air cavities may form - all these moments are harmful.

To ensure proper cultivation planting material, it is worth checking the possible causes point by point.

Poor soil in which tomatoes grow

Novice gardeners do not always attach importance to the choice of soil, take soil from the beds. This is the main mistake; the growth of the plant depends on its quality. You can't save money on this.

It is preferable to buy ready-made soil or prepare the mixture according to existing rules. To disinfect it from germs, it is necessary to use special means. Otherwise, pathogenic microbes or pests will form.

If the soil is of poor quality, it needs to be enriched useful substances, add peat, fertilizers.

This problem can be solved quite simply; there is no need to disturb the seedlings. The soil is sprinkled on top, after watering everything useful will go to the roots. This point must be taken into account and the soil for planting must be prepared correctly. Tomatoes grow well if the soil has enough nutrients.

Stress after transplanting tomatoes

For any plant, replanting is stressful; seedlings need to get used to new conditions. It takes time for the sprouts to take root, so it is so important to provide proper care.

Tomatoes need to be watched and monitored temperature regime, watering, maintenance. Today it is easier to cope with this problem by purchasing a growth stimulator.
Special means allow plants to survive a stressful situation.
Popular among experienced gardeners safe remedy from natural substances - sodium humate.
Thanks to stimulants, plants develop better because they have a positive effect.

Medications that have a positive effect on stress will help you cope with stress. root system, increase the growth rate. You should also increase the immunity of seedlings with Immunocytophyte or Novosila.

Use stimulants according to the instructions; the method of use is always indicated on the packaging.

Failure to comply with picking rules

First of all, the transplant must be carried out according to deadlines. Reasons for incorrect picking:

An overgrown or, conversely, poorly formed plant will take root poorly.
Before transplanting, the soil was poorly watered, which caused damage to the roots.
During the picking period, seedlings have one small root; if it is damaged, it will take a long time to recover.
If you replant densely growing seeds where the plant roots are tightly intertwined, problems may also arise.

Optimal age of tomato seedlings for picking 10-15 days from the moment of germination.

Improper care

As for home care, it’s very important topic, content greatly influences growth. This includes all the accents of watering, fertilizing, temperature conditions, and plenty of light.

be sure to water the plant after picking;
carry out watering under the root with settled water;
cold water when watering will be harmful;
weak sprouts do not like a lot of sun, better create shading;
the temperature should not be lower 20 degrees during the day, 16 degrees at night;
You cannot fertilize after picking; you must wait a certain period;
fertilize with nitrophoska no earlier than after 14 days;
any interference in the process of seedling growth is detrimental;
necessary check the soil for moisture, spray weak sprouts, slightly moistening the soil.

After picking, give the plant enough time for the first 3-5 days.

What to do to help seedlings grow better

Caring for tomatoes at the seedling growth stage is very important point, From him the quality of the harvest depends. The stronger the sprouts, the easier it will be for it to take root. open ground. This work cannot be called easy, which is why many gardeners buy ready-made seedlings and only those who are patient manage to grow them themselves.

Below are tips to help your seedlings grow better:

Correctly organize the place where the trays with sprouts will be located. Best fit window sills or heated greenhouses.
Prepare the soil according to the recommendations; it should consist of: peat, earth, sand, rotted humus. Be sure to disinfect the soil by special means or heat it in the oven.
Check the quality of seeds and monitor shelf life. Harden them in the refrigerator and treat them with disinfectants. The seeds may have fungi.
First days water only with a spray bottle. If the air is dry or hot, it is necessary to spray regularly to create a humid environment.
Before picking, as soon as 3 leaves have formed, water the soil well. This must be done in three stages one day before the transplant.
Replant in well-watered tray soil or peat pots.
Thoroughly press the ground so that the roots “settle down”. If this is not done, the roots may die.
To prevent the formation of diseases (pests), since ancient times gardeners have used spraying with diluted milk at a ratio of 1:4.

With the onset of stable warm days, at lunchtime the trays are taken out onto the street or balcony. This measure will allow the plant to get used to its natural environment to avoid stress.

To ensure good growth, you need to pay attention to the soil, feed it on time, and water it. If you follow the recommendations from the moment of soil preparation to picking, problems should not arise. By observing growth, any errors in care can be eliminated. Happy picking and rich harvests!

Compared to other nightshade crops, tomatoes are not a capricious crop, they respond well to care and quickly recover after health procedures. Most problems arise when growing seedlings in room conditions, and the most common is stunting of growth and inhibition of development. What to do if tomato seedlings do not grow?

The main reasons why tomato seedlings grow poorly or not at all are:

Unfavorable microclimate.
Nutrient deficiency.
Incorrectly carried out picking.
Failure to comply with care rules.
Diseases of seedlings.
Pest attacks.

Let's learn how to determine the reason for stopping the growth of tomatoes by external signs and find out what ways you can fight this.

Unfavorable microclimate

To create a microclimate favorable for tomato seedlings, it is necessary to take into account temperature and humidity indicators and provide normal lighting to the plants at the initial stage of the growing season.

Temperature and humidity

Violation of the temperature regime becomes one of the main reasons for the slowdown in growth in tomatoes. Let us recall that in tomatoes, vegetative processes normally occur in the temperature range from +15°C to +30°C.

In residential conditions, cooling of seedlings is possible when kept on uninsulated window sills, but most often development inhibition is observed due to too much high temperature, at +32°C, tomatoes completely stop developing and growing.

In addition, a concomitant factor in increasing temperature in an apartment is almost always low humidity, which also negatively affects the growth of tomatoes. What to do to normalize humidity and temperature:

hypothermia can be avoided by removing seedlings from window sills or insulating them in advance;
reduce the temperature by normal ventilation, the procedure is also necessary for the gradual hardening of seedlings and helps get rid of high humidity;
in rooms with low humidity, spray water using a spray bottle.

Lighting

Tomatoes are long-day plants. Ideally, seedlings need lighting for 12 to 16 hours a day. Gardeners begin to plant seedlings in February and March, when daylight hours last no more than 7 to 10 hours. With insufficient lighting, photosynthesis processes at the intracellular level slow down, and accordingly, seedlings develop poorly and do not grow.

To compensate for the lack sunlight sprouts are illuminated with phytolamps; as an alternative, fluorescent lamps can be used lighting. The procedure must be carried out equal amount time in the morning and evening, but many vegetable growers only carry out additional lighting in the evening and quite successfully.

When there is a lack of light in greenhouses, potash fertilizers are often used. You can support seedlings at home using this method. To do this, you can use a solution of potassium salt (5 g/3 l) or potassium sulfate (6 g/3 l). Humates or complex fertilizers are often used for feeding, since in addition to potassium, seedlings need nitrogen and phosphorus.

Nutrient deficiency

Nitrogen is responsible for the growth of vegetative mass. The roots of seedlings develop normally if there is enough phosphorus in the soil. If tomato seedlings stop growing and turn pale green or yellowish, this indicates a lack of nitrogen. If the stems and leaves turn bluish or purple, this indicates phosphorus starvation.

Nitrogen is replenished with urea, ammonium nitrate, ammonium sulfate, and phosphorus with superphosphate fertilizer. Cow manure also contains a lot of nitrogen and phosphorus, so many vegetable growers use mullein infusion as a top dressing, and add wood ash to replenish potassium.

To feed tomato seedlings, first prepare a concentrate (1 kg of mullein/2 l), which is diluted 1:10 with water immediately before use. For 5 liters organic feeding add 100 ml of wood ash.

On a note! Organic matter of animal origin is a source of pests and many diseases of tomatoes, so it is used with caution on seedlings.

Recipes for nutrient solutions to stimulate the growth and development of tomatoes:

urea 1 g/simple superphosphate 8 g/potassium salt 3 g/2 l;
ammonium nitrate 1 g/simple superphosphate 8 g/potassium sulfate 4 g/2 l;
30 g nitrophoska/2 l.

The first feeding is carried out 10 days after the emergence of seedlings, the second - 5 days before picking or a week after it. For the third time, the seedlings are fertilized 5 - 7 days before transplanting into the ground. Any nutrient solutions are added to well-watered soil.

Wrong pick

Picking requires special care and attention from the gardener. When transplanting into separate containers, air voids should not be allowed in the soil mixture. This can lead to poor survival and rotting of immature roots of seedlings, stunting of growth, and often complete death of the plant.

During the picking process, the main stem of the rhizome is pinched. This is necessary to stimulate the growth of lateral shoots, and is also a measure against stretching of seedlings. After picking, seedlings intensively grow the underground part, while the vegetative part above stops its development. But if the roots are severely damaged, the plant will stop growing and simply die.

Failure to comply with care rules

In order for seedlings to grow better, it is necessary to carry out certain rules care: water, fertilize, carry out disease prevention, maintain optimal temperature conditions for tomatoes, lighting and air humidity. The most common mistakes when growing tomatoes include failure to maintain temperature, light and humidity levels, as well as improper watering.

You already know about the microclimate, let's talk about how to water tomato seedlings. Immediately after sowing the seeds, the soil in the boxes should be constantly moist, but as sprouts appear, watering should be reduced. The soil mixture should not dry out too much, but daily watering will also not be beneficial. Watering is carried out when the top layer dries approximately 2 or 3 times a week.

At proper watering oxygen access to the roots improves, and the likelihood of developing fungal infections decreases.

Diseases

Diseases on tomato seedlings most often appear due to violation of watering standards. Poor quality of seeds and neglect of disinfection of soil and planting material also lead to infection.

Tomato seedlings may not grow due to the following diseases:

blackleg;
root rot;
white spotting.

Blackleg

A fungal infection in which the stem of a seedling turns black at soil level. The disease then spreads to the entire stem and the plant dies. The disease has no cure. At the first signs, diseased seedlings are removed, the rest are replanted. Soil mixture from under diseased plants they are not used or are disinfected by calcination in the oven.

Planted tomatoes are treated with Fundazol or other fungicides. Prevention of the disease is the addition of ash to the soil before planting and dusting the seedlings with it, and the use of biostimulants “Baktofit” or “Fitosporin”.

Root rot

Overmoistening combined with hypothermia, which is typical for seedlings on window sills, leads to the appearance of root rot. Control and prevention measures are the same as for blackleg.

To strengthen the immune system, the roots of uninfected plants are soaked in “Fitosporin” or a solution of potassium permanganate.

White spot

Small white spots with a dark border are a sign of septoria or white spot disease, as vegetable growers call it. Septoria is difficult to treat and is not practical when growing seedlings. Diseased plants are removed, and those that have not become infected are replanted.

White spotting will be prevented by soil disinfection and seed material before landing.

Pests

In residential conditions, there are few pests that can stop the growth of seedlings; the most dangerous are spider mites and woodlice.

Spider mite

Typically, the source of spider mite infestation is houseplants. Before starting to grow tomatoes, it is necessary to treat all domestic crops with insecticides, and also transfer them to separate room. Against spider mite Actellik or Fitoverm products will help.

Woodlice

Woodlice live in damp areas. In older buildings, this is usually the bathroom, basements and storage rooms, but woodlice infestations can spread to living rooms.

Before planting tomatoes for seedlings, you should treat the room with Karbofos and ventilate more often.

Grow healthy seedlings growing tomatoes, which subsequently adapts well to the garden beds, is not difficult. During the growing process, problems are possible: seedlings do not grow, wither or stretch out. But the culture is responsive to care and responds well to health-improving activities.