Why can tomatoes turn white

Tomatoes are quite strong and strong plants, it is not difficult to care for them. But there are times that people who have little experience in growing tomatoes often have situations where the leaves of your tomatoes turn white. Why do tomatoes turn white?

Content
  1. Sunburns
  2. Prevention of the disease
  3. Methods of struggle
  4. Brown spotting
  5. How to deal with
  6. White rot
  7. Methods of dealing with the disease
  8. Powdery mildew
  9. Treatment of the disease

Причины побеления листьев у томатов

Causes of tomato whitening

Far not everyone knows why tomatoes turn white and what signs affect it, especially if you care water, fertilize and fertilize. Today, experts see a number of reasons that may affect this.

Sunburns

Quite often this problem occurs in young bushes. If you notice that your plant is whiter only from above, this may mean the fact that, most likely, this happened due to a severe sunburn. This occurs if:

  • new seedlings that are not ready for the sun were immediately exposed under the open sky;
  • when you transplanted the plants directly from the pot into the ground.

Prevention of ailment

The most important rule is that from a very young age seedlings must be accustomed to direct sunlight.The easiest way to solve this problem is to simply place the seedlings on the window. If for some reason there is no way to do this, then there is another option. Its main meaning is Consistency. A week before direct planting in the ground, take the seedlings outside under the sun for several hours, but do this during the period of soft sun activity.

Already after you have planted the tomatoes in the ground, it is also necessary to protect them, therefore it would be nice if you covered them with lutrasil. If the tomatoes are in the garden, then put the arcs and cover.

The ideal option would be to use greenhouses. Tomatoes will feel safe there and develop well. For a while, all greenhouses are best kept closed, and open them when necessary to water or ventilate. When it gets warmer, you can ventilate for longer.

Methods of struggle

Unfortunately, it will be impossible to restore the former appearance to the bushes, but there is an opportunity to save them. After the sun has completely hidden, treat all the yellow leaves with Epin. A similar preparation will help tomatoes survive the stress.

A similar procedure must be carried out 3 times, 1 time per week, on the same day. You should also understand that the affected plant will recover and grow for quite some time.

Brown spotting

Not everyone, even professional gardeners, can say with certainty why the leaves of tomato seedlings turn white. There can be many reasons for this, and one of them is brown spotting. Most often, tomatoes that grow in greenhouses suffer from a similar phenomenon. Symptoms of the disease:

  • the lower part of the leaf will always have a small area that will be covered with white coating;
  • then such a coating will change its color, and becomes brown with a slight shade of brown ;
  • on the top of each leaf there will be yellow spots that look like stains;
  • if the disease is at the last stage, then the leaves at the bush begin to curl and then dry up.

How to fight

В целях профилактики проводите регулярное проветривание теплицы

In order to prevent prov Regular ventilation of the greenhouse

The main reason why such a disease attacks the bush is the high percentage of moisture in the room and the temperature. As a preventative measure, you can use constant and good ventilation.

If you just notice such signs on the bush, you need to immediately treat it with a Bordeaux mixture. This procedure must be done 4-5 times with an interval of 10 days.

White rot

This type of ailment is attributed to fungal diseases that affect the stems and fruits of the bush.This also applies to plants located in open areas and in greenhouses. Symptoms of the disease:

  • the tissues of the whole plant have a slightly mucous and soft consistency;
  • in addition to this, on the horse’s neck, stems and at the main base, white growths can be seen, very similar to fungus;
  • as a result, the fruits of the tomatoes will gradually dry out and then they will die.

If the humidity in the room is too low, but the temperature is high, then such an ailment can destroy the plant in about 4 -5 days, and you can’t do anything about it.

Methods of dealing with the disease

the rule is to create completely acceptable and comfortable conditions for the maintenance of plants. Also, if you immediately notice infected areas or particles on the bush, you must immediately remove them so that they do not infect all the tomatoes that are next to them.

All the leaves and branches that you cut , it is necessary to process with crushed chalk, clean coal, also add potassium permanganate or copper sulfate. In addition, spray with Bordeaux liquid – a great way to prevent it.

Powdery mildew

The disease causes a pathogen such as marsupial mushroom. The disease looks as if someone bleached pieces of leaves on a bush or spilled carelessly paint on a plant.Signs of the disease:

  • most often white spots with a gray tint are found on the bottom of the leaves;
  • sometimes there may be yellow spots on the top of the leaf;
  • as a result , the leaves burn out from the inside, and then completely dry, there may sometimes be a bloom and dots.

This disease is often found in bushes that are in open soil or in the greenhouse. The reason for this is sharp changes in humidity and temperature. It is quite difficult to deal with such a disease, the infection quickly diverges along the root system. If it rains too much and then warms sharply, then you need to process the tomatoes right away – any specialized preparation like Tsineba will do.

Cure the disease

Once you have discovered the first signs of the disease, you immediately need to remove all areas and get rid of them. After that, all tomatoes must be treated with such medicines as: Haupsina, Trichodermin, Tsineba. Choose one of them and process it 1 time. If the disease manifests itself again, repeat the whole process again.

When planting, always treat the plant, as you might expect, it is best to carry out prophylaxis immediately. Exactly the same mechanism is carried out when planting, and especially when transplanting tomatoes.

To be able to deal with tomato diseases, the very first thing you should do is to understand what exactly you are dealing with, because many diseases can cause spots and white dots on tomato leaves. White plaque on the leaves of plants is always a negative sign that you need to deal with.

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Anna Evans

Author ✓ Farmer

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