Crop diseases drew his attention first, inspiring him to turn from forestry to plant pathology under Charles Stakman, a lifelong mentor, at the University of Minnesota.

 
  • 首先吸引他注意力的是农作物病害,这激励他从明尼苏达大学的林业专业转到了农作物病理学。查尔斯斯泰克曼是他的指导老师,也是终身的良师。
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