Why pale leaves in tomato seedlings. Ways to get rid of the problem
Very often on the leaves of tomatoes that grow in greenhouses and in open ground white, yellow or brown spots. They arise as a result improper care, errors in fertilizer if pests or diseases attacked. Why do tomatoes get sick and how to determine the causes of spots on tomato leaves, how to deal with this phenomenon?
Tomato seedlings can change color due to disease
White spots on tomato leaves
They can point to various reasons. Therefore, it is important to carefully examine the seedlings on the spot, to determine why and what factors contribute to the development of the disease. Small, round, white spots on tomato leaves quickly merge with each other and are accompanied by a white, powdery coating, indicating seedlings affected by powdery mildew. This fungal disease affects the leaves at the bottom of the plant, but quickly moves to the top. A white crumbly coating also appears on the stems, petioles. Development powdery mildew promotes heat and high humidity.
powdery mildew
Powdery mildew is a fairly common but very serious plant disease. It can be easily recognized and difficult to confuse with other diseases. The disease is characterized by a symptom - a white powdery coating, which covers the stems, buds, flowers, the whole plant. Initially, the plaque is small and easy to remove by rubbing with your finger. It spreads rapidly, densely covering all parts of the plant. The plaque is very characteristic, it looks as if someone sprinkled the stem and the whole plant with flour. Affected parts turn brown, blacken, and then die off.
Powdery mildew - a fungal disease of tomatoes
How to deal with white mold
Having noticed the first signs, it is necessary to spray against the disease. For tomato seedlings growing on a personal plot, the use of chemical pesticides is usually avoided and Timorex Gold 24 EC based on a natural extract is used to control tomato powdery mildew. tea tree and approved for use in organic agriculture. Against powdery mildew, the drug is used in an amount of 5-10 ml per liter of water. Sprayed on 10 m² of seedlings. Spraying is carried out four times with an interval of 7-10 days. Good results obtained by alternating Timorex Gold with the fungicide Topsin M 500 SC.
Necrotic spots of white color
Whitish, necrotic spots can indicate a much more dangerous disease called bacterial tomato canker. Symptoms of the disease:
- leaf curling;
- drying of tomato leaves;
- partial wilting on one side.
Gradually, yellow-brown spots are added to the whitish spots, and the whole plant begins to weaken. The stem and petioles turn white and brown or almost black stripes appear on them. In the event of such a disease, infected seedlings must be completely removed, burned along with the roots. The remaining seedlings are treated with a preparation containing copper, such as Miedzian 50 WP.
Spraying is repeated every 7 days. If tomato seedlings are planted in a greenhouse, reduce humidity and disinfect all tools. And so that bacterial cancer does not hit the tomatoes again, it is better to refuse to grow tomatoes in this place for 3-5 years.
Tomato bacterial canker first manifests as leaf curl
food for pests
Very often white spots are the result of feeding pests. If on the upper surface of the leaf, clusters of small, white, round spots form along the edges: a tomato moth (miner fly) has settled here. It is her larvae that feed on juicy and soft greens. As a result, the leaves form narrow corridors, called moves (mines). As the larvae grow, the number and size of the whitish shafts increases. The leaves are severely damaged, die, and fall off the plant. Mospilan 20 SP is used to control tomato leaf miner. A package of 2.4 g is dissolved in 6 liters of water. Repeat spraying after 7-10 days. During the growing season, only 2 sprays are made.
voracious thrips
White spots on seedlings can be the result of feeding one of two types of thrips. Random uneven whitish spots that change color to beige as the seedlings grow and age, indicate the presence of a pest - western flower thrips. Around the spots, pest excrement is also visible in the form of black, shiny and slightly convex dots.
Quite similar silver-white spots along the main veins of tomato leaves, which eventually cover the entire surface of the leaf, are the result of greenhouse thrips.
This is why infected leaves eventually turn yellow and die. To control thrips, as in fly miners, Mospilan 20 SP is used. The natural preparation Agricola will help to avoid chemical pesticides in the fight against thrips. The concentrate is dissolved in a dose of 40 ml of the drug per 10 liters of water.
Thrips leave small white spots on tomatoes
Sunburn
If the temperature is too high and the sun's rays are very strong, young tomato seedlings can get sunburned. It appears as white spots that do not stain. There are no drugs for this disease, and it is difficult to help a diseased plant, burnt and whitened leaves are not restored. Even if the leaf turns white only by half, and the stem remains green, the seedlings will be pale and lag behind healthy plants in development.
Why are tomato seedlings sometimes covered with lutrasil in the greenhouse and in the open field? This measure helps not hardened young plants to survive during the hours of especially active sun.
That is why, when growing seedlings from the first days of life of tomato seedlings, it is recommended to harden them and regularly take them out to the sun so that they adapt and get used to ultraviolet rays and sunlight. Increase the time spent in the sun from day to day and then you will not have to resort to additional measures protection and worry about whitened seedling leaves.
Tomato seedlings: how to grow correctly?Tomatoes are very thermophilic plants. The temperature at which other vegetables feel great can be fatal for tomatoes. This also applies to cold temperature and too hot temperatures. Also, tomatoes, like seedlings of peppers, are very demanding on air and soil moisture. They need moist soil and dry air. This is especially important during the formation of the root system. If the air humidity is very high, then it is likely that the plant will get sick and die. Has great importance and illumination in the place where the tomatoes grow. Tomatoes love light, so even at night they need additional lighting for full growth and development. Tomatoes do not form the first leaf for a long time. After sowing seeds, it takes about 2-3 weeks to form a leaf, and only after 8 weeks a flower brush forms on the plant. All these factors make planting seeds in open ground and germinating them on the street impossible. In this case, grown tomato seedlings at home or in greenhouses come to the rescue. Growing tomato seedlings from seed selection to picking Having decided that it is necessary to plant tomato seedlings or pepper seedlings, another question arises about how to grow tomato seedlings so that they are completely ready for transplanting into open ground and full fruiting. First of all, it is necessary to prepare the seeds for sowing. To do this, they are placed in a container with water at a temperature of 20 to 25 degrees. In order for tomato seedlings to be healthy and strong, you can add a few drops of fertilizer to stimulate growth in the water. After that, the seeds are laid out between two layers of wet gauze. After about two days, the seeds will hatch and they can be planted in trays. Another important factor is the choice of the seedling planting date. The question of when to plant tomatoes for seedlings should be decided based on when you plan to plant them in open ground. The best option- 60 days between sowing seeds and planting. In order for the cultivation of tomato seedlings to give desired results, nessesary to use right soil with peat added to it and special fertilizers that can be purchased at any store for summer residents. You need to plant seeds at a distance of 4-5 cm from each other. After the tomato seedlings or cucumber seedlings have given the first shoots, you need to provide them with good lighting. When the sprouts are formed, the stem will stretch, and the beginnings of the leaves will appear; the seedlings must be transferred to a cooler place. So, the tomatoes will harden and will be ready for sudden changes in temperature in the future. Growing tomato seedlings from picking to planting in the ground In order for tomato seedlings to develop further, it must be dived about 2 weeks after sowing the seeds. For this, ready-made plastic pots are suitable, the size of which must correspond to the size of the plant in order to root system had the opportunity to develop. Picking should be carried out very carefully, trying not to touch the roots with your hands. To do this, the plant is removed from the tray along with a small amount of earth and transferred to an already prepared recess in a new pot. Correct fit tomato seedlings after picking should be carried out to a depth just below the first leaves. After 1-2 weeks after picking, it is necessary to repeat the hardening of the seedlings, while watering it as needed. It is better if the tomato seedlings do not bloom before planting in the ground. The plant should bloom already in a permanent place after transplantation, then the fruits will be large and dense. The temperature regime when growing seedlings of tomatoes, after germination for 7 days, is maintained at 16 - 18 ° C during the day, and at night 13 - 15 ° C. Then it can be increased to 18 - 20°C during the day and 15 - 16°C at night. This regimen is observed until the seedlings grow in the box (up to the second or third true leaf), which is approximately within 30-35 days after germination. During this period, the seedlings are watered 2-3 times. This mode of watering during the period of low light (March) does not allow seedlings to stretch. In order to grow tomato seedlings, the first time they water a little, when all the seedlings appear, and then after 1 - 2 weeks. The last time they are watered on the day of picking seedlings, 3 hours before picking. Water should have a temperature of 20 ° C. A few more tips for caring for seedlings in boxes. Boxes or drawers need to be turned almost every day the other side to window glass so that the seedlings do not stretch to one side. The main thing - do not get carried away frequent watering, when watering, try not to let water fall on top of the leaves, it is better to water under the roots. Water must be settled. Do not forget to spray the plants with skim milk. To do this, take half a glass of skimmed milk, dilute it in 1 liter of water and spray the plants in the morning so that the leaves are moistened. Spraying seedlings is done after the appearance of two true leaves. Processing with skim milk will help get rid of viral diseases that cause leaf curl. In a box, seedlings grow without top dressing. It is impossible to put the box directly on the windowsill, it is better on some kind of stand, so that air access to the root system is not limited. picking Seedlings with two or three true leaves are dived (transplanted) into pots 8 × 8 cm in size, in which they will grow for only 20 - 22 days. To do this, the pots are filled with one of the soil mixtures recommended above and watered with the following solution: 0.5 g of potassium permanganate (pharmaceutical manganese) is diluted in 10 liters of water (22 - 24 ° C). When picking seedlings, sick and weak plants are culled. If the seedlings are slightly stretched out, then the stem can be half-buried when picking into pots, but without deepening (not falling asleep) the cotyledon leaves, and if the seedlings are not stretched out, then the stem is not buried in the soil. - 22°С, at night 16 - 18°С. As soon as the seedlings take root, the temperature is reduced during the day to 18 - 20 ° C, at night to 15 - 16 ° C. Water the seedlings in pots 1-2 times a week until the soil is completely wet. Before the next watering, the soil should be a little dry, but at the same time, it is necessary to ensure that there are no long interruptions in watering. 12 days after picking, the seedlings are fed: 1 tablespoon of nitrophoska or nitroammophoska is taken for 10 liters of water. Spend about a glass of solution per pot. After 20 - 22 days, the seedlings are transplanted from small pots into large ones (12x12 or 15x15 cm in size). When transplanting, try not to bury the plants. After planting, the seedlings are watered with warm (22 ° C) water, trying to moisten the soil well. Then do not water. In the future, moderate watering is needed (1 time per week). Each plant is watered individually as the soil dries up. This restrains the growth and stretching of seedlings. Many gardeners will probably ask the question: why do you need to dive seedlings first into small pots, and then plant them in large ones? Firstly, each transplant slows down the growth of the plant, and the seedlings do not stretch. Secondly, when the plants are in small pots, they develop a good root system with normal watering, since water does not linger in them and there is more air access. If the seedlings are immediately dived into large pots, then it is difficult to regulate watering, the water stagnates there. Overwatering often occurs, and the root system stops growing due to lack of air, which in turn negatively affects the development of seedlings (it stretches). 15 days after transplanting into large pots, seedlings are fed: 1 tablespoon of superphosphate and 2 tablespoons of wood ash, spending one glass of the solution for each pot. After 10 days, a second top dressing is done: 2 tablespoons of nitrophoska or nitroammophoska are taken for 10 liters of water, spending 1 glass per plant. Watering is combined with top dressing. During the period of growing seedlings, no bedding soil mixture do not do. If the seedling has a pale green color If the tomato seedlings are pale green in color when pulled out, it is necessary to feed (1 tablespoon of urea is taken per 10 liters of water), spending half a glass for each pot, and put the pots for 5-6 days in a place where the air temperature is like during the day, so at night it stays at 8 - 10 ° C, and do not water for several days. It will be noticeable how the plant stops growing, turns green and even acquires purple hue. After that, the plants are again transferred to normal conditions. If the seedlings stretched out In rare cases, if the seedlings are very elongated, the stems of the plants can be cut into two parts at the level of 5 or 6 leaves. The upper cut parts of the plants are placed in a jar of water, where after 8–10 days roots up to 1–1.5 cm in size will grow on the lower stems. Then these plants are planted in nutrient pots 10–10 cm in size or directly in a box with a distance from each another 10x10 or 12x12 cm. Planted plants will continue to grow like ordinary seedlings, which are formed into one stem. New shoots (stepchildren) will soon appear from the axils of the 5 lower leaves of the cut plant that remained to grow in a pot. When they reach a length of 5 cm, the two upper shoots (stepsons) of them must be left, and the lower ones removed. The left upper stepchildren will gradually grow and develop. The result is a good standard seedling. This operation can be done 20 - 25 days before landing on permanent place. When planting these seedlings in a permanent place in the greenhouse, they continue to form it in two shoots. Each shoot is tied separately with twine to the trellis (wire). Up to 3-4 fruit clusters are formed on each shoot. Much attention should be paid to the planting time of the tomato. If, say, a cold snap is expected in the afternoon and a frost at night, then the plantation where the tomatoes are planted should be watered. Moist soil better transfers heat from the lower layers to the surface, so the temperature of the watered soil is set 2-3 ° C higher than dry soil. When hardened seedlings are planted in abundantly watered soil, it is able to tolerate frosts down to -2 ° C. http://nachaloes.ru If the seedling grows slowly Many gardeners complain about the slow growth of seedlings, in which case they are fed with a growth stimulator - sodium humate. The watering solution should be the color of beer or tea. Pour 1 cup per plant. Seedling hardening 15 days before planting, tomato seedlings are hardened, that is, they open the window both day and night. On warm days (from 12 ° C and above), the seedlings are taken out to the balcony for 2 - 3 hours for 2 - 3 days, leaving it open, and then taken out for the whole day, you can leave it overnight, but it is necessary to cover the top with a film . In the event of a decrease in temperature (below 8 ° C), it is better to bring the seedlings into the room. Well hardened seedlings have a bluish-purple tint. When hardening, the soil must be watered, otherwise the plants will wither. If the seedlings are fattening If the seedlings are developing rapidly, getting fat, they do root dressing: for 10 liters of water, take 3 tablespoons of superphosphate, spending a glass of this solution for each pot. A day after feeding, the seedlings should be placed in a warm place where the air temperature is kept at 26 ° C during the day and 20 - 22 ° C at night, and do not water for several days, slightly drying the soil. Under such conditions, the seedlings are normalized, and after a week they are transferred to normal conditions. In sunny weather during the day, the temperature is kept at 22 - 23 ° C, at night 16 - 17 ° C, and in cloudy weather it is reduced during the day to 17 - 18 ° C, and at night to 15 - 16 ° C. How to determine the quality of seedlings? Seedlings should be 25 - 35 cm high, have 8 - 12 well-developed leaves and well-formed inflorescences (one or two). Often, gardeners buy seedlings on the market, grown without observing the rules of agricultural technology, and without knowing the variety. Main disadvantage that the seeds are sown in late dates. This can be determined by the type of plant, they are pale green in color, with large internodes, thin, elongated and without signs flower buds. Such thin, loose, easily breaking seedlings always give a late and meager harvest, they are mainly affected by fungal diseases, especially late blight, so I advise you to grow seedlings only by yourself. 2-3 days before planting seedlings in a permanent place, it is recommended to cut 2-3 lower real leaves . This operation is done in order to reduce the possibility of the appearance of diseases, better ventilation, lighting, which in turn will contribute to better development first flower brush. Cut so that there are stumps 1.5 - 2 cm long, which then dry out and fall off on their own, and this will not damage the main stem. Tomato seedlings for open ground planted in 10x10 cm pots, and tall species are planted in 14x14 cm pots. Before planting, the seedlings should be watered, so that later they can be dug up normally and carefully pulled out of the ground without damaging the roots of the plant. Seedlings are also sorted, discarding weak or diseased plants. Soil is poured into the pot, slightly compacted and a small depression is made in the middle. The seedling is lowered there so that its root is straight. After about two weeks, you can pour a mixture of peat and sand into the pots. Quality care consists in proper feeding tomatoes, watering and compliance temperature regime. Plants should be watered once a week only. warm water. As the plant develops, watering is increased so that the soil does not dry out. It is best to water in the morning. During the growth period, the plant can be sprayed with skim milk once a week. This is done so that the plant does not have viral diseases. Every two weeks they are fed with a solution of nitrophoska. The last top dressing of the plant is carried out a week before planting in open ground. There are also quite a few importance has hardening seedlings. To do this, you need to take the seedlings outside for a short period of time. How to save the first flower brush? To preserve the flower buds on the first flower brush, it is necessary to spray the seedlings 4-5 days before planting in the garden or in the greenhouse. boric solution(per 1 liter of water 1 g of boric acid) in the morning in cloudy weather. In sunny weather, this cannot be done, otherwise burns will appear on the leaves.
Many diseases can damage tomatoes, leaves turn white or, for example, small dots of light gray appear, which means that not everything is in order with the plants and they need urgent help. By understanding why the leaves turn white, you can take action to eliminate the existing disease or nutrient imbalance. In fact, the appearance of white spots on the leaves can be observed during the cultivation of seedlings, and immediately after planting the plants in open ground or in the final place in the greenhouse.
Leaves of seedlings can turn white different ways, because in some cases there is a gradual lightening and the acquisition of a white color by the surface, while in other cases, small white dots or a characteristic plaque may appear on the leaves light color. If the leaves of tomatoes turn white, there can be an extremely large number of reasons for the appearance of such a condition.
Common problems and diseases that can cause white spots include:
- sunburn;
- chemical burns;
- septoria;
- white spotting.
Among other things, often the appearance of white patches is associated with a lack of nutrients. This usually happens when tomato seedlings have been grown in one place for many years and at the same time the site owners do not fertilize and do not properly disinfect the soil.
It is worth noting that the wilting of the leaves and the appearance of white patches on them, oddly enough, can also be associated with an excess chemical fertilizers, which is especially often observed in cases where gardeners do not follow the sequence and schedule for applying potash and nitrogen fertilizers.
Before taking specific actions to treat seedlings, you should figure out in advance why the leaves of tomatoes turn white.
Diseases of tomatoes and ways to deal with them (video)
How to deal with whitening of tomato leaves
The appearance of white spots on tomatoes is possible when growing plants both in a greenhouse and in open ground. If the tomatoes are grown in a greenhouse and you see completely white leaves appearing on top of the plants, sunburn is most likely the problem. The thing is that if the owners of the greenhouse do not open the windows in it or simply do not lift the covering material during the hottest hours, there may be an increase in the temperature in the greenhouse to critical levels.
After planting in open ground, seedlings grown in a greenhouse may develop white sunburn.
To prevent the development of sunburn and in this case is a very real task. If transplanting seedlings is done when the weather is hot, it is very important to shade the plants for 2 weeks until they take root and get stronger. Among other things, in some way, evening watering can save seedlings planted in open ground from sunburn.
Chemical burns can appear on tomato seedlings due to the excess dosage of chemical fertilizers in the manufacture of the solution. When such a too thick solution gets on plants, even in small quantities, this may first provoke the appearance of an extensive white spot, and then the death of the damaged leaf. In addition, a number chemicals, used to prevent certain diseases of tomatoes, can only be used in cloudy weather, as they reduce the natural protection of plants from sunlight, which can cause severe burns, and sometimes even death of plants.
When white spots appear due to fungal diseases such as septoria or white spotting, additional symptoms of existing diseases will also be present. Such additional symptoms may include wilting and curling of the leaves, and in addition, their premature death. In case of detection of signs of fungal diseases of tomatoes, it is very important to treat the plants with special chemicals containing copper. Timely targeted treatment of tomatoes from the fungus will save the future crop.
Although tomatoes are a fairly unpretentious vegetable crop, sometimes their seedlings or already adult plants may experience various problems. Very often, the leaves of tomatoes in the greenhouse turn white. Why this happens and how to deal with the problem - this will be discussed below.
seedlings with white foliage
In this case, the first to suffer upper leaves. Usually this happens in unprepared seedlings, which are exposed to direct sunlight without preparation.
Also, this can happen when unhardened seedlings are planted in a greenhouse or in open ground.
In order for young seedlings to avoid such burns, it is necessary to accustom the plants to the sun's rays from the first days of germination. Usually seedlings are placed on any windows, except for the northern ones. In this case, the tomatoes will not suffer from burns.
If it is not possible to keep tomatoes in the sun all daylight hours, then you need to accustom them to the light gradually.
If seedlings not accustomed to sunlight are planted in a greenhouse or in open ground, then at first it must be covered from sunlight. Transplanted seedlings will adapt in a new place within 10 - 14 days, at this time it is rather weak, so the sun's rays can cause irreparable damage to its delicate foliage.
Shelter over tomatoes is not removed for a couple of weeks. Greenhouses are opened only to water the plants and ventilate. But gradually increase the ventilation time, especially if it becomes warm outside.
If the tomato seedlings nevertheless received sunburn, then it will not work to reanimate the whitened places. But you can try to save the plants. To do this, young tomatoes are watered with Epin's solution at least three times with an interval of 6 to 8 days. Vegetable growers should remember that sun-damaged seedlings will develop much more slowly than healthy ones.
Diseases of tomatoes (video)
Why the leaves of tomatoes turn white in the greenhouse: the main reasons
Reasons for the appearance white color on the leaves of tomatoes may be different. These are points that gradually merge with each other, increasing in size, the foliage can turn completely white, or become covered with a light coating. There can be many reasons for this, but they all indicate that the tomatoes are sick.
The most common causes of white spots can be:
- sunburn;
- burns with chemicals;
- septoria;
- spotting white;
- lack of minerals.
Similar problems arise if tomatoes are constantly planted in the same place, and gardeners do not apply enough fertilizer. And if at the same time the soil is not disinfected, then the tomatoes will definitely get sick.
If white spots on tomatoes appeared due to a lack of nutrients, then the situation can be corrected only by properly selected complex fertilizers. It should be remembered that during active growth bushes of tomatoes, as well as during the ripening of the crop, this vegetable crop needs certain mineral and organic fertilizers. Timely feeding will allow the tomatoes to grow strong and healthy.
An excess of trace elements in the soil can also cause the foliage to dry out and white spots appear on it. If gardeners do not comply with the dosage of potassium and nitrogen fertilizers when they are applied as top dressing, then tomatoes can also get sick from an overabundance of these mineral fertilizers.
Very often, in the process of growing adult tomatoes, vegetable growers spray bushes with chemicals to control pests, as well as for preventive purposes. And if the concentration of these drugs is high enough, then white spots may appear on the foliage. Such spots can also appear if the plants are watered under the root with a solution of mineral fertilizers, but not very carefully, and splashes hit the leaves.
How to avoid late blight (video)
Diseases of adult tomatoes as the cause of white spots on the leaves
Many diseases of tomatoes are accompanied by the appearance of white spots on the foliage. But these are not the only manifestations of these diseases.
brown spot
This disease usually appears on tomatoes at the moment when they begin to ripen the fruit. Moreover, this disease affects only greenhouse tomatoes:
- a white fluff appears on the underside of the foliage;
- gradually its color becomes darker;
- the upper part of the tomato leaves is covered with dirty yellow spots;
- gradually the leaves curl up, dry out and fall off.
Usually this disease progresses in those greenhouses where the temperature and humidity are too high. So experienced vegetable growers advise to ventilate greenhouses more often and reduce humidity in them. At the first signs of the appearance of brown spot on the tomatoes, the plants should be sprayed with a solution Bordeaux mixture. This procedure should be repeated at least 3-4 times with an interval of 8-11 days.
white rot
For this fungal disease the following features are characteristic:
- plant tissues become soft and covered with mucus;
- at the base of the stems, on the stems themselves and on the cuttings of the foliage, a characteristic white mycelium appears;
- the plant gradually withers and dies.
This disease progresses if the temperature environment relatively low and high humidity. The main measures to combat this fungal disease:
- all damaged parts of the tomatoes should be immediately removed and burned;
- cut sites should be treated with any disinfectant (charcoal, copper sulphate, etc.);
- plants are sprayed with a solution blue vitriol or Bordeaux liquid.
powdery mildew
This disease also often appears on adult tomatoes. Its "culprit" is also a fungus. Main features:
- the appearance of white spots and a grayish-white coating on reverse side foliage;
- on the outside foliage appears yellowish-white spots;
- The leaves begin to dry and fall off.
This disease occurs when the humidity of the environment begins to change dramatically. It is very difficult to cure tomatoes from powdery mildew. It is much easier in the case of regular rains to carry out regular spraying of tomato bushes with special fungicidal preparations.
If the first symptoms of powdery mildew have already appeared on the plants, then the following measures should be taken:
- remove from the bushes all parts damaged by the disease and burn;
- spray plants with preparations such as "Cineba".
Mosaic
This disease is caused by viruses and very often leads to the death of not only individual bushes, but also entire tomato plantations.
- In tomatoes, the shape of the foliage and its color change. Yellowish spots appear on the foliage. The plant is oppressed, the fruits ripen worse, the yield of tomatoes decreases, the plants dry and die.
- All damaged plants and their parts should be removed and burned immediately. Seeds before sowing should be disinfected in a weak solution of potassium permanganate. Seedlings are recommended to be regularly watered with a solution of potassium permanganate.
- Once every 8 - 10 days, water with skim milk. Such a solution is prepared as follows: a liter of milk is diluted in a bucket of water and 10 g of urea is added. For sowing, it is better to use seeds that have been stored for at least 2-3 seasons. It is better to plant varieties of tomatoes that are resistant to fungal diseases and mosaic.
How to care for tomatoes in a greenhouse (video)
White spots on the foliage of tomatoes are not always symptoms of an incipient disease. Tomato bushes must be regularly inspected in order to identify beginning diseases in the early stages.
The sooner you start the fight against the disease, the faster you can help the plants cope with it. And if the disease has already "captured" most bush, then such a plant most often has to be completely removed.
Related Articles
If the seedlings immediately stretched out without having time to grow normally, then you can save it. There can be several reasons for pulling seedlings. This is, firstly, a very high temperature, which happens in our apartments, more than 20 degrees, we need to lower it, we can remove the second frames, cover the batteries central heating, open the window. The second reason is the lack of lighting, you can put a fluorescent lamp on the window and illuminate the seedlings in the morning and evening. Do not sow seeds early when there is not enough light, stick to optimal timing sowing. To save the seedlings, we need to thread them, we often grow more seedlings than necessary, then add earth. The second option is to cut the stem, the incision is made above the fifth leaf. The top needs to be put in water and when roots appear in a week, you can plant them like ordinary seedlings in the ground. On the second part of the seedlings, shoots will appear, we leave only a couple of the top ones, and cut off the rest, you need to do this 20-25 days before planting.
Plant in the OG, they will quickly catch up with their own, and in pots they will suffer. Cover with jars, film, covering, if you are so afraid.
Stretch prevention
Good luck to you. For the first time, seedlings should be fed 10 days after germination with a solution of nitrophoska (a pinch per 1 liter of water). Useful for the human body
Dilute one tablespoon of urea into ten liters of water and the liquid that turned out to be poured over the tomatoes on the windowsill. No need to be greedy when planting tomatoes in boxes. Shouldn't be stuffed a large number of tomato in one box. Better smaller bushes, but healthy and strong. The seedlings will then give large quantity fruits than frail sprouts that have grown in cramped conditions. It is more convenient to take care of twenty bushes than fifty bushes that give the same amount of harvest.In 3 weeks
One of the most important problems in growing tomatoes is pulling seedlings. Seedlings grow, leaves touch neighboring plants and a struggle for living space and light begins to take place. This is a natural reaction of seedlings going through all stages of growth to produce seeds. To complete life cycle the plant reaches for the streams of light, because the process of photosynthesis depends on it. The stems do not become thicker, quickly turn yellow and old leaves begin to fall off at the bottom.
Why are tomato seedlings stretched?
If the tomato seedlings are very stretched, then you need:
Such pictures can be observed in most lovers of self-growing seedlings. What to do so that the seedlings do not stretch? What is the way out, and is there any at all? Why is this happening? Of course, there is a way out. Required dive it, that is, tear it off lower part(long root) and plant again); To slow down the growth of seedlings upwards and vice versa, to strengthen the growth of roots and strengthen the trunk, you need:
although this is not a problem at all. So the decision
Apparently you grew seedlings incorrectly: the soil is very poor on nutrients, little light, excessively warm room. Accordingly, it is necessary to correct it - to feed (Athlete was correctly advised, but you can use mineral water or organic diluted in water), more light (lateral), cooler ambient temperature. And they plant elongated seedlings at an angle of 45 degrees. - and new roots are formed and the height of the seedlings will not affect its stability. Choose the right soil next time.
I do not agree with the Dachnitsa that top dressing should be started 10 days after germination (!?). The root system is just being formed, top dressing is not needed, in worst case just dangerous. Then a pick, the soil is usually filled with fertilizers. And 10-14 days after picking, it is already necessary to look at the state of the seedlings. If the leaves turn pale (become light green), you can feed with saltpeter or urea (half a teaspoon per 1 liter of water) and increase the lighting. Can be in sunny days take out to the glazed balcony. If there is an effect of nitrogen fertilization, then the seedlings really do not have enough nutrition; then after two weeks feed her with Kemira or any ud-eat for seedlings.
If available bird droppings 15 parts of water are taken for one part of it and mineral fertilizers are not added to the resulting solution. Everyone who wants to enjoy the taste of tomatoes picked on their own in their own garden faces many difficulties, because growing tomatoes at home requires a lot of effort and patience. To receive good harvest tomato, it is necessary to grow very capricious and constantly requiring care and attention seedlings. If you do not take into account all the rules, it is unlikely that she will live to the moment when you need to plant her in the ground. Move to a cool place
Innovative Solution
Watered and fertilized abundantly When planting tomato seedlings in the ground, it is imperative to deepen the stems. It is not necessary to make the holes very deep, because after the winter, the earth does not have time to warm up, it is enough to be able to plant on a slope. First you need to form grooves, they should be eight or ten centimeters deep, pour water and wait until complete absorption occurs. After that, you need to spread the tomatoes along the grooves, the tops of the bush should not be closer than fifty centimeters to each other. It is better to lay the roots to the south so that the plant straightens up, reaching for the sun.Create good conditions
Move to a more lit and cool place;
1) rearrange the seedlings to a more lit place, even better on a balcony. This is a pick Elena Smirnova answered very reasonably, seedlings - into the ground and cover for the first time with improvised materials: where with a film, where with lutrasil, where with a newspaper or a can. If you live in a country house, you can just close it with leaky buckets at night, as our grandmothers did.
Tomatoes still have a lot of time. they will increase theirs. I experimented this year too. I have half of the tomato seedlings that came out like this. I planted. but I was already mentally prepared to throw them away. they stayed for 10 days. and then they started chasing good seedlings. haven’t caught up yet, but I don’t call them slugs anymore
garden.guru
The leaves of the tomato seedlings have turned pale. What should I do?
Agatha
The second time to feed 10 days after the first feeding. Very good with Effekton fertilizer (1 tbsp per bucket of water).
Feed, but don't overdo it. Carry out any top dressing 1 time in 7-10 days.
Where the temperature will be about ten degrees and wait until the color returns to normal, then return the seedlings to their original place. As a result, not only the color is restored, but growth also stops a little.
they begin to grow rapidly and stretch upward. Seedlings need to be watered only when the ground becomes dry.
Main reasons:
for seedlings. You need to treat this very responsibly.
summer resident
ventilate the room more often;
2) find a cooler place for the seedlings than where it is now.
.
When planted in the ground, they will become normal. I landed my most frail ones in the OG under agrospan. Now they have a stalk - with a little finger thick. 10-12 degrees at night for tomatoes is normal, you can plant already.
Buy at the kiosk, there are tomatoes that you need ... and throw out your own, they are spoiled
Good growth of tomato seedlings is observed when it is fed with wood ash, which contains a lot of potassium, phosphorus and various trace elements. For 1 liter of water, take 6-8 g of ash and add 1.5-2 g of ammonium nitrate. Such top dressing of tomato seedlings is usually done 10-12 days after the first.
Top dressings are root - when the solution flows into the soil under the plants and foliar - the plants are sprayed with a solution over the leaves. Also, top dressing is divided into mineral and organic. Mineral fertilizers - ammonium nitrate, urea, Kemira-lux, Aelita, Polifid, Agricola, Zdraven and others, as well as wood ash. From organic dressings apply - chicken manure, mullein manure, liquid fertilizers"Ideal", "Chippolino", etc.
Jacob Mittlider came up with an amazing solution to prevent seedlings from stretching out: regular leaf trimming. Tomato seedlings are thus introduced into a state of shock. As soon as the tomato leaves come into contact with a neighboring plant, you need to immediately trim one or two lower leaves. Having experienced a shock, a plant in a week
The temperature should be twenty-five degrees. Sometimes tomato seedlings change color and become pale green. This means that tomatoes
Zoya Alexandrovna
This may happen due to
Gene Abos
When the tomato seedlings are stretched out, the stems weaken, become thin and appear bad smell from tomato. Most people immediately throw out tomato seedlings and buy another, however, do not rush, there is a way to save young plant. What needs to be done so that the seedlings do not stretch out?
If possible, take the seedlings to a heated greenhouse;
Tatyanochka
Of course, you don’t need to rearrange the seedlings abruptly from a warm place to a very cold one, the degree should be reduced gradually.
Elena Akentieva
Elongated tomato seedlings lend themselves perfectly to picking! Since the tomatoes are planted during the picking process, which we do, we put the long stems of the tomatoes into the ground and a new powerful root system grows on them, which is very good for the subsequent growth of tomatoes.
Tomato seedlings failed. Pale, thin. Packed into cups. How can I help you?
lazybones
For the second time in my life I grew tomato seedlings. Nothing came up that year. This time I sowed often, and they all, damn it, took and rose. There was nothing to dive into, it’s a pity to tear out the extra ones. In general, they grew dead-dead. My husband said - throw it out, buy normal seedlings from the collective farmers, but I did not succumb to provocations. We decided that if they die, we will buy normal ones and plant them - after all, they sell seedlings until mid-June. I brought it to the dacha, planted this dead meat, covered it with spunbond, three weeks passed - they are so strong, large, buds have already appeared on early varieties. Try to land - suddenly everything will work out for you. If they don’t take root, buy on the market.
leopard
Yes, this is not yet a collapse of your tomatoes ... do top dressing, they will take strength.
Antonina Yakovleva
The last time they feed is 10 days before planting tomato seedlings in open ground with a solution of superphosphate (a pinch per 1 liter of water).
Helen
Organic and mineral supplements should be alternated. Mineral fertilizers in a small package (10 g) are supplied with detailed instructions according to the application, which you follow. organic fertilizers dilute so that the solution is yellow color. Use the ash as follows: 1 tbsp. stir a spoonful of sifted ash in 2 liters of water and leave for at least a day. Then drain the clean solution, discard the ashes, feed with this infusion.
always smart
stops growing tall
Boris Stepanov
not enough nitrogen
Elena Smirnova
not enough good lighting
If the tomato seedlings stretched out very much, you need
While there is snow, I sprinkle seedlings on them, I begin to harden gradually from 0, 2 mm of a layer of snow, I bring it up to 1 cm. The roots of the tomato become thick and purple. Such a plant is no longer afraid of light frosts (up to -2 degrees) and it can be planted earlier in open ground or an unheated greenhouse.
Evgeny Kondr
Since it will become lighter and cooler, the seedlings will stop reaching for the light, i.e. up, and will become stronger at the root and strengthen the trunk of the plant.
Tatiana Harsh
Therefore, if your seedlings stretched out immediately after germination, this is not a big problem. But if tomato seedlings are pulled out after diving, then this can complicate transplanting into the ground, especially if you need to transport seedlings.
Ludmila Gushchina
They need to be planted, 10 grams at night - normal - nothing will happen to them. We have the same temperature at night. , and in the afternoon 20-22 ---- I planted everything in the OG, the tomatoes were already sipping - they were blooming, the eggplants had begun to turn green, otherwise they had already turned yellow in the cups, like chlorotic ones, I planted them before everyone else, so as not to suffer, first under the film , as the frosts ended, then the film was removed.
VinOlga
Plant lying down! And they will grow up and be strong, do not chew!
Irina Shabalina
Whatever you choose to feed, do not forget to wash off the solution from the leaves so as not to burn them.
◄non-GMO
After any top dressing, water everything a little. clean water. If you exceed the concentration of the solution, this watering will correct your mistake.
What to do if tomato seedlings are very stretched immediately after germination?
.Lilechka
Beautiful glade
. In nature, everything is thought out: if there is not enough light, you need to reach for it. In winter, daylight hours are reduced, respectively, plants need additional lighting. cut into two pieces Your seedlings are stretched out because they do not have enough light, you need to illuminate them with a fluorescent lamp. If it is stretched out too much, throw it away, it will no longer be of any use. When you plant the next one, feed it with special fertilizer for seedlings, it does not allow it to stretch. I don’t remember the name of the fertilizer, ask in stores where the seeds are sold, tell me what you need for seedlings so that they don’t stretch out. glazed balcony and it is warm enough to take out seedlings. a balcony door do not close the room. You still need not to chase early varieties and grow seedlings to suit your climate. Of course the best place for growing seedlings, these are windows to the south, because it is necessary for seedlings to provide maximum daylight hours, plus add lighting with a lamp after dark.
plant immediately. But I would not water with an athlete, a tomato is like a weed, if you plant it lying down, it will quickly give lateral roots and catch up with its own. Just fertilize the bed, not sparing, with humus.
Well, if there is enough sun, let them harden! I live in Vladimir, 170 km east of Moscow. For a month now, tomatoes have been standing on the street under a car shed, slowly transporting them to the dacha, burying my neck there. Even the weak are so strong! They stand gray with emerald leaves and gain color! Eh! it was necessary to listen to the Legend and even then landed on the dacha! Simply stupid! He probably cracks salads in St. Petersburg!))) So plant a couple of bushes of your tomato lying down (I dug the first flower brush) and they will gain strength from you, releasing a new root system. And if the cold comes, so what? We live in a zone of risky agriculture! Moreover, something incomprehensible is happening with the climate and ecology! Good luck!)))
While writing, I learned about the explosions in Moscow. Lord, when will this end?
IrinaMZ
To make the seedlings stretch less, add soil and pinch a couple of lower leaves.
The stem thickens when the plant stops growing in height, which is exactly what is needed in order to grow powerful, stocky seedlings. You need to understand that this operation is carried out when at least one leaf has formed at the points of growth. Repeated pruning will improve the result and tomato seedlings with strong and thick stems will surprise everyone. Even cotyledon leaves are often cut off and this always leads to an exclusively positive result.
Methods for preparing top dressing for tomatoes:
Feride 333
each stalk of a tomato. The cut should be done after the fifth leaflet. top plants need to be put in a jar of water, for the formation of roots, this happens within one week. After the root system has appeared, the upper parts of the tomato must be placed in pots for seedlings. The result is another seedling of tomato and it can also be grown outdoors.
In such cases, I do not throw away the seedlings, I let it grow further. When planting in the ground on the street, I break off the lower leaves, let them dry for 10 minutes, then plant them lying down, sprinkling the stem with the torn leaves off the ground. A tomato planted in this way acquires new roots and becomes stronger.
Seedlings are stretched out due to lack of light. If stretched out, sprinkle and illuminate. Additional lighting it is better to carry out with LED lamps. They have an efficiency of up to 90%. it slows down growth and contributes to the thickening of the stem.
Of course, in the best case, you need to prevent pulling seedlings, but if it really happened, then there are several options to deal with this problem.
I think that you did not mean fertilizers, but retardants that inhibit plant growth, for example, "Athlete". - over a year ago
Nilama
Sprinkle Athlete - you will see how in 5 days the seedlings will get stronger. Instructions for use and doses on the package. The method has been proven repeatedly.
fserg
Feed with iron - ferovit for example
nadin755
Illumination is of no small importance for the development of seedlings. The farther your seedlings are from the light source, the more they stretch. And the closer your seedlings stand on the windowsill, the more it stretches. Do not worry if the neighbors have seedlings of 10-15 cm, and your tomatoes have just sprouted. There's still a month and a half to go. During this time, you can grow a healthy strong seedlings. After all, you probably planted early ripe varieties.
angry
Tomatoes are the most common vegetable plants in the world. There is very little information about their origin, many scientists believe that the birthplace of this fruit is Peru and the mountainous regions of Ecuador. Tomatoes are very
Olga285
- too much density of plants
- After a while, small stepchildren and shoots begin to appear near the axils of the leaves. It is necessary to wait until the upper shoots reach five centimeters in length, after which it is necessary to remove the lower stems. This must be done
- You don't need to throw it away. It must be sprinkled with earth so that it does not break and it will continue to grow. We also have little light in the apartment. But of course, look for a place to have more light.
- If stretched out, immediately pour in the earth to hide the "long trunks", it is advisable to put it on the windowsill (in a bright place). it is better to grow seedlings at temperatures below room temperature (it also climbs from heat)
- The first option involves drowning the stem into the ground, if the seedlings grow on the street, then the earth has not yet warmed up much, so it is better to plant the plant in a slope.
Sooosolnechnaya
There may be the following reasons: little light and a lot of heat. Most likely your seedlings are standing in warm room on the windowsill. And under the windowsill there is a radiator battery, from which it's warm. With an excess of heat, the seedlings will grow faster upwards, and with a lack of light, this growth will be unhealthy - the sprouts will be thin, pale and weak. This can also happen if the plants are planted very close to each other. Therefore, seedlings must either be planted less often, or thinned out on time, leaving the most strong plants. Keep in a place where it is light, but not very warm. If necessary, illuminate with fluorescent lamps.