How to prevent and control downy mildew in cabbage? Detailed explanation of control methods
In the early stage of the disease, pesticides such as 75% chlorothalonil wettable powder 600-800 times dilution and 70% mancozeb wettable powder 800 times dilution can be used for preventive protection. In mid-September, the early stage of the disease is the key period for control. You can use 58% metalaxyl·mancozeb wettable powder N700 times dilution, 20% flumorph wettable powder l000 times dilution, 60% flumorph...
In the early stage of the disease, pesticides such as 75% chlorothalonil wettable powder 600-800 times dilution and 70% mancozeb wettable powder 800 times dilution can be used for preventive protection. In mid-September, the early stage of the disease is the key period for control. You can use 58% metalaxyl·mancozeb wettable powder N700 times dilution, 20% flumorph wettable powder l000 times dilution, 60% flumorph·mancozeb wettable powder 400-600 times dilution, 69% dimethomorph·mancozeb wettable powder l000 times dilution, 72.2% propamocarb hydrochloride water-soluble liquid N600 times dilution, 25% metalaxyl wettable powder 600 times dilution, 64% oxadixyl·mancozeb wettable powder 500 times dilution, 90% fosetyl-aluminum wettable powder 450-500 times dilution and other pesticides for spraying, with an interval of 7-10 days between sprays, for a total of 2-3 sprays.