238 THE DISEASES OF FRUITS. 



The Mildew (Sphcerotheca mors-uvce. Schw.) is a fungus that 

 is very destructive to the gooseberry, but is rarely met with 

 upon the currant. The European varieties are particularly 



Fio. 292. Currant Canes, showing the Blight as proj Actions from the surfaca 

 (From Durand.) 



susceptible and usually are considered not worthy of cultiva- 

 tion because of the prevalence of this disease. This mildew 

 produces a felt-like brown coating upon the young growth of 

 stems, including the leaves and fruit, which are much dwarfed 

 and distorted. The fungus is entirely superficial and consists 

 of filaments lying upon the surface with upright branches that 



