How to prevent false smut 5-7 days before rice break? Ask an expert.

The best time to control false smut of rice is when the flag leaf and the inverted leaf spread out, which is usually about 10- 15 days before breaking. In production, in order to give consideration to the prevention and control of rice blast and reduce the number of spraying, spraying is generally carried out 5-7 days before the seedling is broken, that is, the plants in the field have obvious bellies. It seems that spraying should be carried out in time when the seedling is broken, and rice blast should be prevented at the same time, and it is raining continuously.