45 



Diseases affecting Potatoes 



I. "Hollow potato"-A physiological trouble; 2. Internal brown ^^.t^^f ^-A ?hy|iolpgk^^^ trouble; 

 3. Little potato disease or Rhizoctonia; 4 4a. Powdery scab of PO^atoe. ^ ^0^^'° ^f^^.^fg 

 6, 6a. Dry rot of potato; 7. Stem-end rot; 8. Common potato scab; 9, 9a. Late biigtit ot potatoes. 



