I. LEAF-SPOT.* 



I. General Account. 

 In horticultural writing much attention has been given to the leaf- 



157. — Leaves of Anjou pear injuycd by leaf-spot fungus. 



blight of the pear, a disease sometimes called leaf-spot. The leaf-blight 

 is a fungus of wide distribution and of much economic importance, 



Septoria p iricola Desm , 



