1. Select disease-resistant varieties, continue to replace new varieties, and plant suitable varieties for the growth period.
2. Adjust the sowing date appropriately, and try to avoid the rainy season from corn booting to tasselling. Reasonable dense planting, reasonable fertilization, promote precocity, pay attention to pest control to reduce the chance of wound infection.
3, to strengthen the management of the field, we must increase the application of potash fertilizer or nitrogen, phosphorus, potassium and rational use. Precipitation drains water in time to prevent prolonged waterlogging in the field. In the later period of childbirth, early maturing should be promoted. After the grain enters the wax ripening stage, the stand stalks should be used to accelerate grain dehydration.
4. Drying and dehydration in time after harvest, removing sick grains and so on.
5, pharmaceutical control. 1 soaked with 200 times formalin soaked for 1 hour or soaked with 50% carbendazim or thiophanate-methyl 100 times wettable powder for 24 hours, rinse with water and dry after sowing. 2 Early stage of heading spraying 50% carbendazim or 50% thiophanate-methyl WP 1000 times or 25% benomyl EC 800 times, focusing on the ear and the lower stem and leaves, every 7-10 days 1 Times, prevention 1 or 2 times
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