How to control anthracnose of Chinese cabbage in summer and autumn?

How to control anthracnose of Chinese cabbage in summer and autumn? Please introduce the prevention and control methods of anthracnose of Chinese cabbage in summer and autumn. In addition to harming Chinese cabbage, it can also harm cruciferous vegetables such as mustard, radish and turnip, affect the marketability of vegetables, and reduce production. Chinese cabbage anthracnose is a high-temperature and high-humidity disease, which is easy to occur when the temperature is 26 ℃ ~ 30 ℃, relative humidity is more than 95%, continuous cropping land, low-lying terrain, poor drainage, excessive planting density, poor fertilizer, weak plant growth, poor ventilation and light transmission. In the early stage, the symptom recognition leaves were pale or greenish water-stained spots, and after expansion, they were round or nearly round, the edges were brown, slightly raised, the center was slightly sunken, gray-white, thin paper, translucent, gray-white in the later stage, translucent, easy to perforate. Harm to the dorsal veins of the leaves, there are strips of brown spots of different length, slightly sunken. Petioles, pedicels and seed pods were killed, resulting in long oval or fusiform to fusiform, brown or grayish brown sunken spots. When it is wet, Chu red sticky substance often grows on the disease department. Prevention and control measures at the initial stage of the disease, 2% antimycin water agent can be sprayed 200 times, once every 5-6 days, even 2-3 times. It can also spray 80% anthrax Fumei wettable powder 600 × 800 times, or 50% carbendazim wettable powder 600 × 800 times, or 50% lide wettable powder 600 × 800 times, to treat Botrytis cinerea, Sclerotinia sclerotiorum and so on at the same time. In addition, spray 40% Fengnong wettable powder 400 times 500 times, or 70% methyl thiophanate wettable powder 1000 times plus 75% chlorothalonil wettable powder 1000 times, or 50% carbendazim wettable powder 1000 times, or 70% mancozeb wettable powder 1000 times, or 25% Spock EC 3000 × 4000 times, once every 7 days, 2 times in a row. Click to get more cabbage planting techniques click to get more vegetable planting techniques