18 



Director's Eeport of the 



Pomaceous fruits 



Apples 



Crab apples.. 



Pears 



Quinces 



Stone fruits: 



Apricots 



Cherries 



Peaches 



Plums 



Small fruits : 



Grapes 



Currants 



Gooseberries . 



Blackberries . 



Dewberries 



Raspberries . . 



Strawberries . 



Total . . 



Number of 



Station seedlings 



DOW growing. 



50 

 '39' 



18 



446 

 53 



256 



1 



43 



23 



53 



983 



Number of 



varieties added 



in fall of '96 



and spring of '97 



108 



1 



19 



2 



11 

 21 

 17 

 43 



6 



10 



5 



3 



6 



27 



306 



Total number of 



varieties now 



growing at the 



Station. 



671 

 22 



240 

 11 



36 

 75 



147 

 243 



675 

 102 

 479 

 34 

 49 

 123 

 113 



J, 020 



Department of Plant Pathology. 



A new disease of sweet corn. — Mr. Stewart has given consider- 

 able time to the study of a new disease of sweet corn to which 

 the early varieties of this crop are much subject in the market 

 gardens of Long Island. He has demonstrated that this disease 

 is bacterial in its nature, which is the first step necessary to a 

 discovery of methods of prevention. The subject needs further 

 study, and no remedial measures can now be recommended. Pre- 

 vention may perhaps be secured by care in the selection of seed 

 and by the planting of resistant varieties. 



Potato scab. — The ploughing in of a crop of green rye had no 

 effect in preventing potato scab. The disease appeared to be 

 aggravated rather than checked. 



Potato stem bliglit. — This was not communicated by planting 

 diseased tubers, neither were peppers, tomatoes, egg plants or 

 plants of other species infected by contact with diseased potato 

 tubers. 



Ganiatioti rust. — The application of a solution of common salt 

 neither prevented the rust nor benefited the growth of the car- 

 nation plants, ' 



