With approach of summer season more and more gardeners face such problem as drying and yellowing of leaves at tomatoes in greenhouses. The most frequent reasons of the similar phenomenon at these plants - fuzariozny withering and phytophthora.
Why leaves fade at tomatoes
One of the most common causes why at tomatoes leaves fade, fuzariozny withering is. This disease is especially widespread in the southern areas, and irrespective of finding of plants in greenhouses or hotbeds. In northern areas the tomatoes which are in greenhouses suffer from it generally.
The first symptoms of fusariosis - yellowing of foliage, deformation of scapes, further - usykhaniye of the top escapes, darkening of fruits. To avoid fuzariozny withering of tomatoes, it is necessary to look after correctly plants, for example:
- in time to hill tomatoes, the first earthing up needs to be carried out before the plant reaches height of 15 centimeters;
- surely before landing to carry out soil disinfection by solution of copper vitriol (100 grams of raw materials on 10 liters of water);
- in time to carry out processing by fungicide medicines, etc.
Why leaves at tomatoes dry
Quite frequent phenomenon - drying up of leaves of tomatoes, which reason - phytophthora. The phytophthora arises owing to the wrong watering of plants (frequent) and also temperature condition. The disease is dangerous that it is capable to destroy all harvest as soon as possible.
It is difficult to fight against phytophthora, however it is possible to warn this disease, for all this it is only necessary to carry out prevention: in time to water plants, without filling in them, to process special medicines from phytophthora (best of all to use solutions of milk and infusions of garlic), to carry out the fertilizing strengthening immunity of plants (have well proved barmy fertilizing: 20 grams of raw materials on 10 liters of water), cindery (three tablespoons of ashes under each plant before watering).