Spinach smashing disease is easy to appear in the early spring and humidity, and the possibility of occurrence in summer heat is greatly reduced, but any disease can not be taken lightly. This article tells you the symptoms and prevention techniques of spinach rickets I hope to help the farmers. Diagnosis of the disease of spinach The disease is mainly caused by the young stems of the seedlings. The base of the stem of the seedling was light brown water-soaked, and soon wet rot, contracture, the seedlings had not withered and had collapsed, and soon the whole seedlings withered and died. At the beginning of the onset, only the disease center was seen on the seedbed, and it expanded rapidly under conditions of low temperature and humidity, and a piece of dead seedling appeared. The pathogenic bacteria are Pythium. The mycelium of the pathogen grows lush and is white cotton-like. The mycelium is colorless and has no membrane. The difference between hyphae and cysts is not obvious. The sporangium is filamentous or branched, or irregularly expanded. The oospores are spherical and smooth. The incidence of the disease of spinach: The bacteria overwinter in the topsoil with oospores and survive in the soil for a long time. In the second year, the spore-forming sacs were germinated in suitable conditions, and the host was invaded by zoospores or directly growing out of the germ tube. In addition, the hyphae of the saprophytic life in the soil can also produce sporangia, and the zoospores infest the seedlings to cause tripping. Reinfection in the field mainly relies on the production of sporangia and zoospores on the diseased seedlings, which are caused by irrigation water or rainwater splashing on the rhizome close to the ground. The pathogen growth rate is 15-16 °C, the temperature is higher than 30 °C, and the optimum temperature is 10 °C. The low temperature is not lower than the growth of the host, but the pathogen is still active, so the low temperature and high humidity conditions during the seedling stage are conducive to the onset. Spinach disease prevention measures: (1) When breeding seedlings, strictly select nutrient soil, use disease-free new soil, pond soil or paddy soil, and do not use old seedbed soil with bacteria. (2) Strengthen seedbed management to avoid low temperature and high humidity conditions. (3) Seed cover. 100 kg of 20% methyl chlorophosphorus emulsifiable concentrate or 50% of double-powdered double-powder powder was applied to 100 kg of fine dry soil, and the soil was covered with a layer of soil and then covered with soil. (4) After the onset of the disease, 72% kelu wettable powder 800 times solution, 72.2% Plex aqueous solution 500 times solution, 15% carbaryl water agent 400 times solution, 69% Anke manganese zinc water dispersion granules can be used. 1000 times liquid. Bacillus Coagulans,Bacillus Coagulans Powder,Bacillus Coagulans Probiotic,Bacillus Coagulans Supplement Jiangsu Biodep Biotechnology Co. ,Ltd. , https://www.mbioda.com