128 



Diseases of Economic Plants 



America as early as 1834, and was carried to Europe about 

 1878. It is now general both in Europe and the United 

 States. 



Anthracnose ^^"' ^"^^ (Gloeosporium ampelophagumSsiCC.). — 

 This anthracnose, probably introduced into America from 

 Europe prior to 1880, is now widely distributed throughout 



Fig. 66. — Anthracnose on the fruit. After Paddock. 



grape-growing sections and is the fourth disease in impor- 

 tance. While not usually so destructive as black-rot or 

 brown-rot, it sometimes increases to such an extent as to do 

 great damage, even causing in some instances the loss of all 

 the berries upon a vine as well as much injury to the canes. 

 During damp, warm weather it develops rapidly, affecting 

 some varieties more than others. The Champion and 

 Moore's Diamond may be mentioned as especially sus- 

 ceptible, while the Concord is resistant. 



