Why do leaves of tomato twist

Growing tomatoes gives a lot of trouble gardeners. Their leaves can turn black, covered with dark spots, dry out or curl. The last problem noted during humidity or temperature, excess fertilizers, of some diseases. To return the tomatoes to life, you need to determine the cause of the twisting of the leaves.

Often twisting leaves of tomatoes can be seen in the first weeks after planting of seedlings, when the plant survives. Over time, the growth, the leaves straightened. Twisting, therefore, does not pose a threat to plants.

Water regime

One of the reasons for the twisting of the leaves tomatoes - the lack or excess of water. In this case, the foliage is twisted along its axis, forming a kind of boat. To help solve the problem of correct watering. In hot weather, tomatoes should be watered every evening, and will be cool enough to make it through the day. If there is insufficient water, the leaves are quite long - about two weeks.

Temperature mode

With increasing air temperature up to +30-35 degrees and above tomatoes begin to consume more oxygen. For this reason, the collapse of the nutrients is faster. Simultaneously with this temperature regime the essential substances are much slower to absorb and accumulate. Because of this, the sheets are starving, which leads to their tightening.

To solve for this reason, the leaves of tomatoes can be sprayed with urea. To do this, dilute 2 tablespoons of urea in a bucket of water, and then spray the plants. Two days later, you can use a weak solution of potassium permanganate. As a rule, two days later, the leaves of tomatoes are straightened. If it's too hot, plants need to create artificial shade, using lutrasil, as well as to ventilate the greenhouse if the tomatoes grow in greenhouses.

The excess of fertilizer

Tomato leaves can curl under excessive content of fertilizer in the soil. In this problem the leaves are similar to a RAM's horn. If the curl of the leaves is complemented by the development of fairly powerful laterals, and thickening of the stem, this indicates excess nitrogen that harms fruit formation. In the end, the tomatoes increasing the green mass.

To reduce the amount of nitrogen will be sufficient once abundantly watered the tomatoes to wash the top layer of soil. It is important that the water is gone from the site, and does not stagnate on it. Otherwise, the tomatoes will suffer from excess moisture.

To reduce the amount of nitrogen in the soil will help the introduction of ash. You can sprinkle it right under the bushes of tomatoes.

Diseases of tomatoes

If the leaves of tomatoes curl down, this can indicate a bacterial defeat cancer. However, as a rule, the lower leaves turn brown and fade, and then completely dry up. On the lower part of petioles and stems are visible sores and cracks. If you cut the stem, you can see the brown ring of blood vessels, indicating that the bacterial. In this case, the plants can't be cured, they should be uprooted and burned.