为能有效地控制稻穗瘟的危害,降低损失,笔者进行多种药剂防治及适期防治穗期稻瘟病试验。试验表明,当前防治水稻穗颈瘟效果好、受雨水影响小的最理想的药剂是75%三环唑可湿性粉剂,其次是10%稻清微胶囊;同时75%三环唑可湿性粉剂300g/hm~2防治一次在破口5%左右病指防效达82.02%,另在水稻破口5%和齐穗期用药两次防治,病指防效最高达到93.87%,均高于防治一次的其他处理。 In order to effectively control the harm of rice blast and reduce losses, the author carried out a variety of chemical control and prevention of blast during the panicle stage. Experiments show that the current prevention and treatment of rice panicle blast effect is good, little effect of rainwater is 75% tricyclazole WP, followed by 10% rice powder; at the same time, 75% tricyclazole WP 300g / hm ~ 2 prevention and cure of a disease in the break 5% about 82.02% of the disease control, and the other in the rice breach 5% and full heading two times prevention and treatment, the highest disease control efficacy reached 93.87%, were higher than the control Other processing.