32 DISEASES OF FIELD & GARDEN CROPS. [OH, 



FIG. 10. DISEASE OF POTATOES. 

 Fusisporium Solani, Mart. Enlarged 400 diameters. 



first squarish, but on alighting on any moist surface they 

 speedily take a spherical form. Sometimes these little 

 bodies do not germinate at once, but hibernate for a short 



