3Perkins J M, Pedersen W L. Disease development and yield losses as- sociated with northern leaf blight on corn[J]. Plant Disease, 1987, 71 (10): 940-943.
4Pataky J K, Raid R N, Schueneman T J, et al. Disease severity and yield of sweet corn hybrids with resistance to northern leaf blight [J]. Plant Disease, 1998, 82(1): 57-63.