At what disease do tomato leaves twist? How to deal with this?

Tomatoes are almost the most popular vegetable culture in our region. Of course, in terms of the number of vegetables grown this species, we do not hold out to Italy, but still the production volumes inspire some respect ...

It is not surprising that in recent years, tomato diseases are becoming more common : leaves are twisting, fruits are rotting ... In a word, there are many unpleasant phenomena that any gardener should struggle with, as otherwise it is possible to remain without the whole harvest.

External environment

So the symptoms of which diseases is twisting? Immediately, we say that not all cases are caused by some kind of pathology or pests. This is often due to too high a temperature in the greenhouse. Check the temperature regime: if in the afternoon your tomatoes are "fried", and in the morning and in the evening they are cooled almost to minus temperatures, then nothing good should not wait.

Viruses

But still there are diseases of tomatoes: the leaves are curled when the culture is damaged by some kind of virus. Carefully look at them: if there is a strong enlightenment in the area of veins, then with a high degree of certainty it is possible to speak about the virus.

Unfortunately, in this case you can not do anything. We will not have to collect seed from damaged tomatoes (however, almost nobody does this anyway).

As a rule, such symptoms are caused by the so-called "cancer tomato". If the lesion is severe, then all plants must be removed. After that, they are burned. In the event that you are too lazy to do this, you will never get rid of this disease of tomatoes. Are the leaves curled even after this?

It is sad, but the greenhouse will have to be moved to another place. But if there is simply no such possibility? Then it will be necessary to resort to complex and expensive disinfection of the internal surfaces of the structure, remove the soil per meter in depth and replace it with fresh ones.

Pests

But there are other, not so dangerous diseases of tomatoes? Twist the leaves in the event that they are chosen for feeding aphids. Again we need to look at the stems and leaves. If small black dots are visible on them even with the naked eye, then it is aphids.

It is easier and safer to remove it with wood ash or tobacco dust. In the case of ash pollination should be carried out as regularly as possible, but it is not too zealous, as chemical burns of leaves are possible.

If biological methods do not help, you can buy pesticides, many of which are produced by the modern chemical industry.

How to prevent?

Surely you understand that the protection of tomatoes from diseases must assume not only active actions with the start of a defeat, but also preventive measures.

First, it is necessary to buy seed material only from trusted suppliers. Do not buy seeds on "collapses". In addition, do not grow tomatoes in one place for dozens of years! This approach is a sure way to ruin the whole crop.

In addition, all tomatoes, diseases and pests which are common in our country, are often "adapted" only to domestic varieties and varieties. Often change the varietal composition, preferring F1 hybrids.