30 IL HMAGEIIEITT ifflT HODo F'OR RiiSP BERRIES 



Recent reports from Hova Scotia give some interesting results with red 

 raspberries when grovm under four different systems of soil management. Yields 

 for the past tv;o years were as follows: 



"1947 1943 



Sod 280 pints 75 pints 



Clean Cultivation 3018 pints 1193 pints 



Hay Mulch 3396 pints 1046 pints 



Sawdust Mulch 4883 pints 1731 pints 



The lov/er yields in 1948 were the result of severe killing of canes 



the previous winter. All plots were fertilized with a 9-5-7 fertilizer, 

 1000 pounds per acre. The sawdust used wqs "run-of-the-mill" which was mostly 

 spruce. 



The superior yields from the sav/dust plots are accredited to a heavier 

 stand of healthy canes in the fall, less \Yinter injury arid less anthracnose 

 than under hay mulch. The amount of winter injury and anthracnose in the 

 sawdust mulch plots were somev;hat greater than in the cultivated plots, but 

 the greater number of canes in the sawdust plots apparently still left .more 

 good canes for fruiting, 



— A. P. French 



STRAfBERRY YIELDS REDUCED BY YSLLa.'S 



'Yellov'fs, a virus disease of strav/berries, long a serious problem in the 

 West, is novj also causing heavy losses in' the East, reports the U. S, 

 Department of Agriculture. J. B, Demaree, plant pathologist of the Department 

 finds the greatest concentration of the disease in the Middle Atlantic States 

 but has observed the infection as far South as Teacheys, N, C, The disease 

 is spread by aphids, 



Mr, Demaree finds that not only are most of the older varieties such as 

 Aroma, Catskill, Dorsett, Dunlap, and Hov;ard 17 (Premier) infected, but that 

 some of the more recently introduced varieties such as Fairpeake, Midland, 

 and Maytime carry the virus. 



The disease is not so easily recognized in eastern varieties as it is in 

 Marshall and Marshall-like varieties grovm xvest of the Rockies where conspic- 

 uous yellov-jing of the leaf edges is a tell-tale symptom. This is masked or 

 transitory in many of the eastern varieties. Here the symptoms are dv/arfing 

 of plants and lack of vigor. In the fall they sho\7 up in poor runner produc- 

 tion. These symptoms become accentuated in the second year. Eastern grovrers. 



