PLATE III 



Cercospora beticola: Overwintering tests on the experimental field at Rocky Ford, 



Colo., during 1912-13: 



Sugar-beet leaves infected with Cercospora beticola (z) stored in soil in boxes, (2) 

 buried in Hie ground at different depths from i to 8 inches, and (j) left exposed above 

 the ground in a pile of hayed sugar-beet tops. 



