I. INTRODUCTION The compound Neiliaosu, an antibiotic produced from Streptomyces hygrospinosus Yen et al. mixed with copper sulfate, can control the valsa canker of apple trees, the downy mildew and the powdery mildew...I. INTRODUCTION The compound Neiliaosu, an antibiotic produced from Streptomyces hygrospinosus Yen et al. mixed with copper sulfate, can control the valsa canker of apple trees, the downy mildew and the powdery mildew of cucumbers. Repeated experiments in recent years show that this compound is a fungicide with high efficiency, without展开更多
文摘I. INTRODUCTION The compound Neiliaosu, an antibiotic produced from Streptomyces hygrospinosus Yen et al. mixed with copper sulfate, can control the valsa canker of apple trees, the downy mildew and the powdery mildew of cucumbers. Repeated experiments in recent years show that this compound is a fungicide with high efficiency, without