What are the diseases in spinach planting?

What are the diseases in spinach planting? What are the hazards of these diseases? Please also know the netizens to help guide the diseases that will occur in the planting process of spinach are sudden disease, heart rot, downy mildew and virus disease. The farming network has sorted out the harm and control methods of the above diseases to spinach, which are listed in detail below for netizens' reference. The harm of spinach quenching disease: generally there are more diseases in the spinach seedling stage, the disease can be seen after the spinach leaves are unfolded, the stem base of the spinach seedlings is in the shape of light brown water stains, and then the base rot occurs, and the spinach seedlings have not yet withered. When the humidity is high, the disease grows out of a layer of white cotton-like hyphae, and the low temperature and humidity expand rapidly. Prevention and treatment of spinach quenching disease: spray with 58% nail cream manganese zinc wettable powder 800 times, or 72.2% Pulic water 400 times. The harm of spinach heart rot: the heart rot mainly harms the stem base of spinach, and the leaves, stems and roots can all be harmed. Spinach with bacteria can be infected after germination, some heart leaves of unearthed seedlings rot, and some stem bases turn brown and constricted, causing sudden collapse, resulting in lack of seedlings and broken ridges. Prevention and treatment of spinach heart rot: at the initial stage of the disease, use 36% thiophanate methyl suspension 500 times, or 72.2% Pulic water 400 times spray. The harm of spinach downy mildew: downy mildew mainly harmed spinach leaves, the disease class began to show a light yellow spot, the edge was not obvious, gradually produced a gray-white mildew layer on the back of the leaf, turned gray-purple in the later stage, and the leaf front showed macula. The disease spot extends upward from the lower part of the plant. It spreads mainly with the help of airflow, Rain Water, agricultural tools, insects and agricultural operations. The disease is serious under the condition of low temperature and high humidity when the temperature is 10 ℃ and the relative humidity is 85%. Prevention and control of spinach downy mildew: in the early stage of spinach disease, use 58% nail cream manganese zinc wettable powder 500 times solution, or 75% chlorothalonil wettable powder 600 times solution, or 75% DuPont Kelou 800 times solution spray. The harm of spinach virus disease: virus disease is a major disease of spinach. After the onset of the virus disease, the leaves were wrinkled and uneven, the leaves were small, some of the heart leaves were twisted, and the new leaves turned yellow. Aphids and planthoppers are the main ways of transmission of viral diseases. Prevention and control methods of spinach virus disease: 1. Timely control of aphids and reduction of transmission media. 2. Spray 1.5% Zhishiling emulsion or 20% virus A wettable powder 1000 times in the early stage of spinach. Management methods of spinach overwintering spinach seedlings cultivation methods Click to get more spinach planting techniques Click to get more vegetable planting techniques