... , the prevention and control of cereal crop powdery mildew, smut, rice seedling damping off, can also be used to some fruit, vegetable ... the prevention and control of cereal crop powdery mildew, smut, rice seedling damping off, can also be used to some fruit, vegetable ... the prevention and control of cereal crop powdery mildew, smut, rice seedling damping off, can also be used to some fruit, vegetable ...