The average effect of spraying 30%DT WP in booting date on controlling rice false smut was 89.6%.The method is effective in controlling rice false smut.

• 应用30%25DT可湿性粉剂在水稻孕穗期喷雾防治稻曲病平均效果达89.；6%25，可作为防治稻曲病的有效措施。