It's the vegetables that are common in our daily lives. It tastes delicious, it's nutritious and it's popular. In the process of planting bacterium nuclei, the emergence of bacterium nuclei has led to a severe reduction in the production of bacterium nuclei, and this paper will provide information on techniques to combat bacterium nuclei。
The disease is mainly a pest, starting with siltation in the tuber's base, resulting in the death and death of young children; it can be sustained for several days. When the humidity is high, the disease produces a plethora of cotton-like white filaments that spread to the surrounding strains and decompose the tissue. At a later stage, the fungus core of black rat dung is formed between the fungus. The disease tastes good when it rots, unlike the ostrich mollusc. The disease occurs and spreads, and the bacterial nuclei are formed in short periods and in large numbers. The fields in which celery, thorium, eggplant and cross-flower vegetables are grown over the years, are poorly drained in low-lying areas or are heavily affected by nitrogen fertilizers or by frost or freezing conditions. Moreover, the planting period has had some impact on the onset of the disease。
The bacterial nuclei are left in the soil or mixed in seeds for winter or summer. The fungus nuclei that are mixed in seeds, with the seed of diseased seed being planted into the field or left behind in the earth under conditions suitable for temperature and humidity, emit output cystals, blow out the cystals to the wound of a weak plant, give rise to first-time infestation, then re-infection by the disease minister, which extends to neighbouring plants or through direct contact with a healthy plant, causes disease, and repeats the infection in this manner until conditions deteriorate and the fungary nuclei falls into the soil or is mixed with the seed. In the south, there were outbreaks in february-april and november-december, and more in the north in march-may. The bacterium requires higher moisture. Relative humidity is above 85 per cent and temperatures range from 15-20°c to bacterium nuclei and filament growth, intrusion and cysts. Thus, early spring or late autumn, which is cold, wet or rainy, benefits。
