92 PROTECTION OF PLANTS, 1916-17 



Apart from this a large number of experiments were carried out in 

 other parts of the Provinces of Prince Edward Island and Nova Scotia, 

 the produce of which was not graded at the laboratory. Some of them were 

 done in co-operation with the farmers direct, and some in co-operation 

 with various officers of the Department of Agriculture of Nova Scotia 

 and the Superintendents of the Experimental Stations at Charlottetown, 

 P.E.I., and Kentville, N.S. This branch of the work calls for the 

 expenditure of a good deal of time and energy as the experimental fields 



Potato Spraying Expt's 



Charlottetown P.E.I 1915 



Bush Bush Value 

 per due to at 

 acre spray 50c 



Sprayed 174 ,^ -^ -^ 

 Check 78 >0I 6050 



!RSr '11 '31 6550 



§KSr Ul "2 56 00 



Sprayed 249 eo oi ca 

 Check 186 b3 ,JI 5U 



C^^r ^2 48 2400 

 Average Net Profit 34.38 



Type of wall chart used in the extension lectures to advocate the use of Bordeau x 



mixture on potatoes. 



and plots extend from the west to the extreme east of Prince Edward 

 Island and from North Sydney to Kentville in Nova Scotia. More than 

 75 field experiments in all were conducted by the Laboratory of Plant 

 Pathology in the two provinces in the year 1916. 



While some of these are of an investigational character and will require 

 years to show a result, many are of immediate practical interest to farmers. 

 Among these may be mentioned the work done on the Late Blight of 

 potatoes and the Club Root of turnips, and, with more particular reference 

 to Nova Scotia, Leaf Roll of potatoes and Apple Scab. Four large-scale 

 experiments on Club Root were carried out in each province to endeavour 



