Potato late blight prevention methods
Comprehensive agricultural control measures are technologies that control disease occurrence through variety and reasonable cultivation measures, and play an important role in prevention and control of early potato blight and late blight caused by climatic conditions.
The primary source of the clean potato blight is the diseased seed potato. During the potato production, we must avoid planting or planting with the solanaceous crop. For continuous cropping, the land should be ploughed before picking, picking up sick potatoes, reducing the source of bacteria, and preventing diseases.
It is one of the most economical and effective preventive measures to use disease-resistant varieties to use disease-resistant varieties. Selecting suitable disease-resistant varieties is the key technology for preventing the occurrence of diseases.
Application of virus-free and robust seed potato virus-free seed potato is an important measure to prevent virus disease and improve the characteristics of potato varieties. Virus-free seed potato is strictly isolated from the production field in the production process and can effectively prevent the infection of various diseases, especially diseases. The use of virus-free seed potatoes can effectively prevent the occurrence of epidemics. The tools were sterilized by sowing before planting, and diseased potatoes were eliminated. Before the cutting of the potatoes, two or more tools were prepared, and the tools were soaked and sterilized in 0.1% potassium permanganate solution. When the potato is cut, the potato block is firstly cut from the umbilicus, and the diseased or suspected diseased potato block is eliminated. The cutting knife is disinfected in the disinfecting liquid, and the other cutting blade is used to cut the potatoes.
The establishment of a disease-free seed field bud will eliminate diseased shoots and weak shoots when axillary buds are used, and young shoots will be separated from the mother's potatoes as early as possible to reduce the chance of disease. Whole potato sowing can avoid the infection of the cutting knife, prevent the disease from expanding infection, and achieve the purpose of preventing disease and increasing production.
High-ridge cultivation to prevent waterlogging in the cultivation techniques to high ridges to prevent the formation of waterlogging around the potato plant, thus preventing the occurrence of the disease.
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