PLATE 4 

 Gibberella idubinetii: 



A. — Kernels blighted and shriveled by Fusarium-blight. Wheat kernels above 

 are typical of Fusarium-blight. They are shriveled and much lighter than the normal 

 kernels below. 



B. — Perithecia development of G. saubinetii on an infected wheat head. 



