What bactericide is recommended for vegetable diseases?

There are many kinds of vegetables and diseases in China. With the intensive cultivation of greenhouse vegetables and some vegetables with high economic value, it has created extremely favorable conditions for the occurrence of some diseases. Such as vegetable gray mold, melon powdery mildew, cucumber downy mildew, cucumber scab, cucumber bacterial angular leaf spot, tomato and pepper bacterial wilt, tomato late blight, tomato leaf mold, tomato early blight, tomato virus disease, pepper virus disease, eggplant verticillium wilt, vegetable nematode disease, Chinese cabbage black spot disease, Chinese cabbage soft rot and strawberry powdery mildew. Cucumber downy mildew, tomato late blight and pepper blight are common and spread rapidly. If they are not stopped as soon as possible, the whole field will be destroyed and the losses will be heavy. The nematodiasis of greenhouse vegetables cultivated in continuous cropping has increased year by year, and serious areas have had a certain impact on vegetable yield. Virus disease of eggplant crops cultivated in open field has occurred in a large area, which has become one of the important diseases in tomato and pepper cultivation. Soft rot of Chinese cabbage will not only cause harm in the field, but also cause rot during storage. The occurrence and harm of solanaceae vegetables, especially tomatoes, are very serious, which has become a serious obstacle to tomato production in the middle and lower reaches of the Yangtze River. Verticillium wilt of eggplant was once an important disease in northeast China, but it has spread to the south in recent years. Pesticide control is a common method to control vegetable diseases, but the pesticide residues on vegetables greatly affect people's health, so there are strict restrictions on the types and duration of pesticides used. In recent years, some progress has been made in using biological fungicides to control diseases, which has opened up a new way for the prevention and control of vegetable diseases and the production of pollution-free vegetables.

Biological fungicides registered in China for preventing and treating vegetable diseases mainly include:

(1) pyrimidine nucleoside antibiotics (Nongkang 120) are mainly used to control black spot of Chinese cabbage, tomato blight and melon powdery mildew. (2) ningnanmycin is mainly used to control cucumber powdery mildew, tomato virus disease and pepper virus disease. (3) Osthol is mainly used to control cucumber powdery mildew. (4) polyoxin is mainly used to control cucumber powdery mildew, downy mildew and gray mold, tomato late blight, early blight, leaf mold and brown spot. (5) Wuyi mycin is mainly used to control cucumber powdery mildew. (6) Bacillus subtilis is mainly used to control cucumber powdery mildew, strawberry powdery mildew, gray mold and tomato bacterial wilt. (7) Berberine is mainly used to control tomato gray mold, leaf mold, cucumber powdery mildew, downy mildew and pepper blight. (8) Polygalacturonidase is mainly used to control cucumber downy mildew. (9) Trichoderma is mainly used to control cucumber downy mildew, gray mold, tomato gray mold and Chinese cabbage downy mildew. (10) Catechins are mainly used to control tomato gray mold and cucumber scab. (1 1) jinggangmu is mainly used to control tomato gray mold. (12) Zhongshengmycin is mainly used to control soft rot of Chinese cabbage, bacterial wilt of tomato, bacterial angular leaf spot of cucumber and scab of green pepper. (13) chain soil is mainly used to control bacterial angular leaf spot of cucumber. Streptomycin sulfate (14) is mainly used to control bacterial angular leaf spot of cucumber and soft rot of Chinese cabbage. (15) ethylicin was mainly used to control bacterial angular leaf spot of cucumber. (16) Paecilomyces polymyxa was mainly used to control tomato bacterial wilt and pepper bacterial wilt. (17) Oligosaccharides are mainly used to control tomato late blight, tomato virus disease and cabbage soft rot. (18) kasugamycin is mainly used to control tomato leaf mold, cucumber angular leaf spot and cabbage soft rot. (19) Inoculation is mainly used to control tomato early blight. (20) Mushroom proteoglycan is mainly used to prevent and treat tomato virus disease. (2 1) Mitomycin is mainly used to control tomato virus disease. (22) Avermectin is mainly used to control cucumber root-knot nematodes. (23) Nucleotide is mainly used to control pepper blight.