1706 



The Cornell Reading-Courses 



Shaffer. — Productive ; fruit large, dark red or dull purple, flesh mod- 

 erately firm, somewhat acid, quality medium; season medium to late; 

 bush very vigorous, moderately hardy. 



Columbian. — Very productive; fruit large, dark purplish red, firm, 

 quality good; season late; closely resembles Shaffer. 



The culture of the purple-cane raspberry is essentially the same as the 

 culture of the black raspberry, which it resembles closely in habits of 

 growth. The bush, however, is larger and more vigorous, and for this 

 reason it is suggested that the plants be set farther apart than is recom- 

 mended for the black raspberry. In the study of the purple-cane 

 varieties in western New York the following table was prepared, based on 

 different distances of planting. The figures are interesting, as they show 

 the practice of growers in that section in regard to distances of planting 

 and the yields secured. 



Yield per 



acre 



(quarts) 



1,667 



1.739 

 1,709 



2,324 



The yield of the purple-cane varieties is fairly represented above. It is 

 a little larger than the yield of either the black or the red varieties. For 

 the last two years an average price per quart of six or seven cents has 

 been received by growers for this fruit. 



DISEASES OF RASPBERRIES 



There are four diseases that are more or less troublesome to the grower 

 of raspberries — anthracnose, cane-blight, crown-gall, and red-rust. The 

 brief descriptions of these diseases and the methods of their control which 

 are given below are taken directly from Cornell University Agricultural 

 Experiment Station Bulletin 283* and from Bulletin 56 of the Canadian 

 Experimental Farm.f 



Anthracnose 



This disease first makes its appearance when the young shoots are 

 twelve to fifteen inches in length, and is recognized by the brownish or 

 purplish patches or depressions on the young shoots and leaf-stalks. As 



* The Control of Insect Pests and Plant Diseases, p. 490. 

 t Bush-Fruits, by W. T. Macoun, p. 57. 



