Potato wart eradication program in Pennsylvania
暂无分享，去创建一个
[1] R. E. Hartman,et al. Potato wart in America , 1944, American Potato Journal.
[2] J. G. Sanders. The Discovery of European Potato Wart Disease in Pennsylvania , 1919 .
暂无分享，去创建一个
[1] R. E. Hartman,et al. Potato wart in America , 1944, American Potato Journal.
[2] J. G. Sanders. The Discovery of European Potato Wart Disease in Pennsylvania , 1919 .