Most of gardeners grows up tomatoes in greenhouses as plants these quite thermophilic and yield bigger harvest at high temperatures. However hothouse tomatoes most often are ill, quite widespread illness of culture - withering of tops.
If you have noticed that at tomatoes tops fade, then it is necessary to review their conditions of keeping. In most cases this illness is shown at the wrong leaving.
Wrong watering
Competent watering is very important for culture, tops of tomatoes can suffer both from moisture surplus in the soil, and from it shortcoming. In the first case the withering of tops results rotting of root system, in the second - the shortages of nutrients. From this conclusion follows that watering normalization - the right decision for elimination of illness.
If tomatoes are planted quite close each other, it is necessary to water them not more often than two times a week, trying to spill as much as possible every time the soil around cultures. For watering it is worth using not cold water, it is better otstoyanny, and the procedure to make in the mornings till 9-10 o'clock. Hour later after watering of door of the greenhouse it is necessary to open that excess moisture has evaporated (it will save plants from fungal diseases).
Bad illumination
Tops of tomatoes can vyat and at bad illumination, most often the lack of light happens because of too high air humidity in the greenhouse or the wrong arrangement of design (for example, it is located near trees and bushes, farm buildings). The solution is simple - it is necessary to air to thicket the greenhouse, whenever possible to move it to the open place.
Quite often tomatoes lack light when they are grown up not during season (too short day). Rescue one are to establish special lamps in the greenhouse, and to lay soil reflective foil.
High temperature
Though tomatoes are also thermophilic culture, however long influence of high temperatures negatively affects saplings. At temperature over 40 degrees, especially if that sticks to more than a week, at tomatoes leaves begin to dry, to fall down ovaries, vyat tops. That it did not occur, it is necessary to install the thermometer in the greenhouse and to maintain temperature not higher than 35 degrees.