Pi. ATE VIII 



DRIED OITT NECROTIC LESIONS— Tubers found in storage in Marcli which appeared perfectly 

 sound externally. A — Net type of frost necrosis in which pitting has resulted from drying out. B — Ring 

 type, very opaque discoloration, also pitted. (After T,. R. Jones, M. Miller and E. Bailey, Frost Necrosis 

 of J'otato Tubers, Research Bull. 46, Agr. Exp. Sta. of the Univ. of Wisconsin). 



Fusarium Dry Rot of Stored Potatoes. (After C. A. Zavitz, Potatoes, Bui. 239- Ont. Agr. College). 



