What are the prevention and control methods of onion anthracnose?

What are the ways to prevent onion anthrax? Please introduce onion anthracnose can refer to the following methods for prevention and control: ① Agricultural measures seriously ill fields should be rotated with non-onion crops to cultivate disease-resistant varieties. (2) Chemical control should be sprayed at the early stage of disease and before rainy season. 1000 times solution of 25% Shibaike emulsifiable concentrate, or 1500 times solution of 50% prochloraz manganese salt (Shibaogong) wettable powder, or 700 times solution of 60% anthrax Ling wettable powder, or 800 times solution of 40% carbon gram wettable powder, or 300 times solution of 1% polyoxygen water agent, or 800 times solution of 68.75% Yibao water dispersible granules, or 500 times solution of 50% mixed sulfur killing suspension, or 800 times solution of 80% anthrax Fumei wettable powder, Or 25% Tanteling wettable powder 500 times solution, or 2% antimycetin aqueous solution 200 times solution and other chemicals spray, once every 7~10 days, continuous control 2~3 times. Click for more onion growing techniques Click for more vegetable growing techniques