New Yoek Agricultueal Experiment Station. 213 

 EASPBERRY DISEASES. 



ANTHRACNOSE. 



{Gloeosporium Venetian Speg.) 



The replies to our circular letter of inquiry indicate that rasp- 

 berry anthracnose has been common. Although not so stated, 

 these replies probably relate to anthracnose on last year's canes. 

 Judging from our own observations we believe that canes of the 

 present season's growth have been but slightly affected. 



RUST. 



(Puccinia peckiana Howe. Syn. Caeoma nitens Schw.) 



Rust has occurred in several plantations, but not to a destruc- 

 tive extent except in a very few cases. Under some conditions 

 rust has a tendency to reduce the number of prickles. For a more 

 detailed discussion of this subject, see Blackberry Rust, page 194. 



ROOT GALLS. 



We know of but one occurrence of this disease in the Hudson 

 Valley. Others probably exist, however. In April a fruit grower 

 at Madalin, Dutchess County, sent us a red raspberry root bear- 

 ing several rough, spongy, roundish knots or galls varying from 

 the size of a pea to that of a walnut. The sender wrote that in 

 the spring of 1898 he had purchased 30 Loudon raspberry plants 

 from a Rochester nurseryman. A year later half of them had 

 died from the root galls. 



The cause of such root galls is not known. There is some 

 evidence that the disease is communicable from one plant to 

 another, and also from raspberries to peaches and vice versa. 

 Plants showing root galls should not be planted, not even after 

 the galls have been removed. 



WINTER INJURY. 



Red raspberries not laid down were injured by the severe win- 

 ter. At Poughkeepsie, red raspberries of the variety Marlboro 

 winter-killed nearly to the ground, while Miller's Red in the 



