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In terms of agricultural control measures, one is to strictly sterilize rice seeds; the second is to control the amount of nitrogen fertilizer and increase the application of phosphorus and potassium fertilizers; the third is to dehydrate the field in time, control the peak seedlings, and control dry humidity and humidity in the later period.
In the aspect of chemical control, generally two days from booting to heading stage, spraying twice a day, using 50% carbendazim 100-150 grams per mu or 60% rice disease killing WP 40 grams plus 50 kg of water, or Spraying with 25% triadimefon or 1000-fold solution of chlorhexidine can also be sprayed with Jingjingmycin agent 100-150 ml and water 25 kg. (Yu Hongzhang)
Rice smut is a fungal disease, also known as powdery mildew, which often causes a large area of ​​reduced yield and quality. It usually happens in August. On the ears of susceptible rice, there are piles of granular powder packets that are olive or dark green. The germs invade the ovary, style, and stigma in the early stage and invade the skin of the young caryopsis later in the period, and then extend into the endosperm, and then multiply to form sporozoites. The reason for the occurrence of rice schistosomiasis is that the seed bacteria spread; second, the climate is suitable, such as the heading temperature is stable at 24 ~ 28 °C, persistent rain, high humidity and sunshine, easily induced; Third, partial application of nitrogen fertilizer, rice fields shaded seriously; Fourth, it was too late to fall into the water and the mud in the field was too deep. As long as vigilance, early prevention and timely prevention and treatment of rice false worm disease are completely controllable.