Often gardeners observe such a phenomenon as the twisting of leaves in tomatoes.
What could be the reason, find out in today's article.
- Lack or excess of moisture
- High air temperature
- Shoot errors
- Incorrect dressing
- Root system damage
- Tomato pests
- Tomato diseases
Lack or excess of moisture
One of the reasons why the leaves curl up inside the tomatoes - lack or excess of moisture. Thirsty, the plant evaporates a smaller amount of moisture in order not to die, while the leaves are twisted inwards by a boat. To help the plant, it is enough to water the plant often, but little by little.
Paradox but overflow - The second reason why leaves curl in tomatoes. Plants can suffer even due to heavy natural rainfall, the leaves in this case are curled upwards. If the plant suffers because of the stagnation of moisture in the soil, it is necessary to carry out work on loosening the soil so that the moisture seeps faster.
High air temperature
To the often troubling gardeners the question of why tomatoes have leaves in a greenhouse curl, the answer is quite simple.The most basic reason is unsatisfactory temperature conditions. The lower layers of the soil are usually always much colder than the heated surfaces, therefore it is necessary to balance the temperature by airing the greenhouses.
If the leaves on the tomatoes began to curl in open ground, they are hampered by heat. This usually occurs when the temperature rises above 35 ° C. Such heat provokes an accelerated decomposition of useful elements, the plant cannot fully absorb them, fasting occurs and, as a result, the leaves dry, coagulate, can even fly around the color. To save tomatoes from such stress, spray them with urea: one and a half tablespoons per 10 liters of water. After three to four days, treat with potassium permanganate.
Shoot errors
A fairly common reason why the leaves curl up inside the tomatoes is wrong pasynkovanie. The procedure should be carried out once or twice a week, if carried out less often, waiting for the undergrowth, the plant will receive stress due to the large number of remote shoots.
Proper staving involves removing the stepsons first in healthy bushes, leaving them weak and looking suspicious for later, thus avoiding diseases of the tomatoes and twisting the leaves from them. To cope with the stress transferred to the plant as a result of cracking will help foliar fertilizer biostimulant.
Incorrect dressing
Watering is normal, stepson according to the rules, the temperature is kept acceptable - why do tomatoes still curl leaves? The whole thing can be in the dressings, an excess or deficiency of any element provokes painful reactions in tomatoes.
Excess rate of zinc is manifested in the violet color of the lower part of the leaf plate and the twisting of the edges. Too much manganese will cause too bright leaf color and a wrinkled surface.
Curling the leaves of tomato seedlings down indicates a lack of sulfur, copper or boron. If the leaves are bent upwards - they do not have enough calcium. If there is a lack of phosphorus, besides twisting, the leaves take on a gray tint. To avoid unpleasant consequences, make balanced complex compounds, for example, potassium monophosphate or "Dissolved".
Root system damage
Why leaves curled around tomato seedlings and what to do about it? The reason may be that seedlings outgrown, and when transplanted too grown roots were damaged. You do not need to do anything about it, you should give the opportunity for the seedlings to recover, stop feeding. Now it is important for the plant to strengthen and heal the root system, and not to develop a deciduous mass, therefore, as soon as the roots are restored, the leaves will take on a normal appearance.
Tomato pests
You should check the plant for the presence of insect parasites. Aphids, whiteflies and red spider mites are usually arranged on the lower part of the leaf plate, feeding on the sap of the plant - simply drinking vitality from it. At the same time the plant dries, becomes covered with spots, leaves are curled.
Immediately upon detecting pests, spray the tomatoes. To do this, suitable drugs such as "Alatar", "Biotlin", "Fufanon". Anti-insect and effective folk methods: marigold infusion, infusion of onion gruel with husk and others.
Tomato diseases
The disease that causes leaves to twist in - bacterial cancer. Ulcers appear on the leaf plates, and cracks appear on the stems. The elevated parts of the tomatoes may become yellow and dry out. The same symptoms can cause tobacco mosaic and tobacco necrosis. These viral diseases are caused by infected seeds or the remaining infection in the soil, and are also responsible for the folded leaves.Unfortunately, these diseases can not be treated, so the affected plants need to be removed from the beds to protect healthy, and burn. It is easier to take preventive measures against these diseases: deep cleaning and digging of the site after harvesting; choosing the right predecessor; seed and soil treatment before planting (Fitolavin-300).
Curling the leaves of tomatoes does not always require treatment. Before sowing, planting, familiarize yourself with the varietal characteristics of the selected tomatoes: leaf curling may be the norm. For example, this feature is different tomatoes "cherry".