Several main disease prevention methods for cabbage in autumn and winter
The Chinese cabbage has now entered the fall and winter seasons and is susceptible to three major diseases. The three major diseases are cabbage downy mildew, soft rot and viral diseases.
1. The Chinese cabbage soft rot disease is commonly known as "Gill rot" and "Rotten disease". Streptomycin sulfate or agricultural streptomycin + new high fat film is sprayed 800 times for prevention and cure.
2. Viral disease is mainly transmitted by locusts. As long as the locust is well controlled, it can effectively prevent and treat the disease. Can be used 10% imidacloprid 800 times or osmium net + 800 times the new high fat film spray control. For those who have already developed symptoms, they must remove the diseased plants in time and destroy them to control the source of the disease. They should use a positive stretch or 20% virus A500 to 700 times spray for every healthy body, every 5 to 7 days, for 2 to 3 times;
3, downy mildew is a kind of gas-borne disease, the occurrence and transmission of high humidity. Therefore, to prevent and treat the disease, the focus is on humidity control. In the early stage of disease, diseased leaves and central diseased plants are eliminated, and 68% of Jinlei, 72% of Kelu WP, 52.5% of fasting, or 40% of BDP can be used in a timely manner. Powder spray control.
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