Small Fruits 



127 



Immature berries which are affected cease growing and de- 

 velop the same coating noted upon the leaves, giving rise to 

 the name ''gray-rot." If the berries are more mature when 

 attacked, they turn brown, thus calling forth the name 

 "brown-rot." The berry in dying shrivels and becomes 



Fig. 65. — Youiu 



Niagara clusters attacked by downy-mildew. 

 After Lodeman. 



wrinkled, but does not become hard and dry, as in the case 

 of the black-rot. The disease is usually more troublesome 

 in the early part of the season than in autumn. Effective 

 management requires early Bordeaux spraying, just before 

 the blossoms open, and often it will be found advantageous 

 to protect the leaves by two to five additional sprayings at 

 intervals of about two weeks. This disease was noted in 



