2. Disease prevention and control: focus on prevention of downy mildew, black spot, and anthrax. For downy mildew, biological control can be adopted, that is, 250 g (salt) of pepper, ginger and garlic can be sprayed on 50 kg of water; 75% chlorothalonil WP 600 times or 72.2% anti-linger can also be used. The wettable powder 600 times liquid or the 40% ethyl phosphorus aluminum wettable powder 500 times liquid spray treatment. For black spot disease, the initial stage of the disease can be controlled by spraying with 50% carbendazim WP 600 times. For anthracnose, the initial stage of the disease can be sprayed with 70% thiophanate-methyl WP 500-600 times or 80% anthrax Fame WP 800 times.
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