Key Techniques for the Prevention and Control of Rice Blast in Rice Cultivation

Rice blast is mainly divided into leaf blast and neck blast. It is one of the major diseases of rice and can cause large-scale yield reductions, with losses of 40%-50% in severe cases, or even a total crop failure.

Prevention and Control of Leaf Blast

Use 100 g per mu of 20% tricyclazole wettable powder, or 25 g per mu of 75% tricyclazole wettable powder, or 150 g-200 g per mu of sulfur-tricyclazole, etc., diluted with 60 kg of water and sprayed for control, once every 5-7 days, for two consecutive applications.

Prevention and Control of Neck Blast

The key period is the booting stage. Choose 30 g per mu of 75% tricyclazole wettable powder, or 150 mL per mu of 40% Fuji-One emulsifiable concentrate, or 100 g per mu of 21.2% Jianshou Rebi, diluted with 60 kg of water and sprayed for control, once every 5-7 days, for two consecutive applications.