""Black leg"" - cabbage disease which affects generally seedling growing in greenhouses or hotbeds. The first symptoms of disease - darkening and curvature of stalk, happens further its thinning because of what the plant breaks and perishes. The activator of ""black leg"" - soil mushrooms, infection occurs only through the soil.
Most often this disease is observed on the cabbage planted too closely to each other. Excessive watering of seedling and untimely airing of greenhouses can provoke disease also. Most often the disease is shown by the small centers, over time these centers grow, strike all seedling.
Black leg at cabbage: how to fight
To secure cabbage seedling against this disease, it is necessary to look after correctly her, namely:
- to disinfect the soil;
- to provide standard temperature condition;
- not to allow stagnation of water and also overdrying of the soil;
- to provide good power supply;
- not to allow thickening.
When jumping cabbage to the greenhouse it is necessary to discard seedling carefully: all representatives on whom there are at least slightest signs of the desease are no good. As it has been told above, infection with ""black leg"" occurs only through the soil therefore the main measures of fight against disease - disinfecting or full change of the earth. As change of the earth - process quite labor-consuming, many gardeners disinfect the struck soil formalin solution more often. This medicine has well proved in fight against this infection.
For prevention of disease of plant it is necessary to water and spray occasionally with solutions with addition of medicines from sulfuric group. Quite good option - colloid sulfur (10 g on 10 liters of water). If on seedling the first focuses of the disease are already visible, then it is better to use the medicines containing metalaxyl, to mefenoka or oksadiksit.