How does a person fight a smut parasite fungus, causing great damage to the grain harvest?

1) Seed treatment before sowing with pesticides.
2) Application of crop rotation.
3) Sowing plant varieties resistant to smut fungi.

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.