There are two types of such widespread diseases as rot of tomatoes vertex.In the first case, the defeat of the fetus in the area of the stem is the result of disturbances in the metabolism of the plant, the second cause of this unpleasant phenomenon are bacteria.Let us consider in more detail how to avoid the disease and what to do if fruits are still amazed.
Prevention apical rot of non-bacterial origin
causes of the disease, in this case mainly involves a lack of calcium.Externally, it is manifested in the appearance in the region of the peduncle watery spots, which then starts to grow, duck and covered with characteristic dry folded circles.Vertex rot of tomatoes (photo of affected fetuses for clarity shown on the left) of this type are most likely to occur when the soil beneath them is not enough moisture and it lacks important trace elements such as calcium.Most often, this kind of disease affects tomatoes growing in the greenhouse.In this case, along with a lack of irrigation is often the cause of too high temperatures (27 - 30 degrees).
Affected fruits are absolutely unsuitable for food, as well as their seeds for planting.Vertex blight hardly manifested in the case in the greenhouse will be observed an optimum temperature (22 - 25 degrees during the day and 18 at night).In addition, you should know how to water the plants.On cloudy days the soil under tomatoes moistened once a week in the sun - 5 times.
Of course, changes in temperature in the greenhouse - a problem quite complicated.Therefore, special attention should be paid to the composition of the soil.In the autumn on soils poor in calcium, is required to be carried out liming.A similar procedure will be useful for tomatoes grown in open ground.Furthermore, it should be sprayed plants 0.5 solution of calcium nitrate.Do it during intense fruit ripening at a frequency of about twice a week.
Seed treatment in special solutions will also help to prevent the occurrence of such diseases as rot of tomatoes vertex.It is possible to use the following composition: 0.3 g of zinc sulfate, 0.5 g of manganese sulfate, 50 g of copper sulfate.All this is dissolved in a liter of water and soaked in a mixture of plant material at 24 hours.
Disclaimer growing in the greenhouse varieties developed for open ground, can also reduce the risk of diseases such as rot of tomatoes vertex.How to deal with it - in this case the question is not as acute.Expedient is to use these, for example, varieties such as "Rusich", "Volgograd", "foreplay" and others.
prevention of bacterial apical rot
Spots on the fruit from the peduncle in the manifestation of the disease because the bacteria have a grayish hueand by type are weeping.This is affected and the flesh.The main cause of this trouble is considered high humidity and increased as the temperature.It is not necessary to water the tomatoes too often in cloudy weather.When it comes to the greenhouse, it is necessary to try to ensure that the humidity of the air inside was not higher than 70% and not less than 50%.Also, be sure you need to break off and burn affected fruit tops fall.The fact that bacteria in it fine hibernate, and then settle on new plants.Of great importance is also such an event, like a garter fruit.Lying on the ground tomatoes are more likely affected.Planting material should be treated with 1% solution of potassium permanganate
Thus, observing all the rules of growing and taking different kinds of preventive measures, can prevent the development of diseases such as rot of tomatoes vertex.
