744 



EXPERIMENTAL FARMS 



7 GEORGE V, A. 1917 



Soluble Sulphur Applied at Different Dates. 



Place Where Test Made and Variety. 



Time of application. 



Per cent 

 of Scab. 



Berwick 



Gravenstein 



Tompkins King 



Baldwin 



Golden Russet 



Average of four varieties. 



Gravenstein 



Tompkins King 



Baldwin 



Golden Russet • 



Average of four varieties. 



Gravenstein. 



No spray. 



Falmouth 



Gravenstein 



Northern Spy 



Golden Russet ;■•.■■• 



Average of three varieties. 



Gravenstein 



Northern Spy 



Golden Russet 



Average of three varieties. 



Gravenstein, no spray 



Northern Spy, no spray. . . 

 Golden Russet, no spray... 

 Average of three varieties. 



May 17 



U-l-100 



lM-100 



H-l-lOO 



1^1-100 



May 17 

 U-i-100 



May 26 



if4-ioo 



lH-100 

 l|-i-100 

 lH-100 



May 27 



May 24 

 It-J-lOO 

 -100 

 -100 



X2 ■: 



June 1 

 U-^100 

 1 §-1-100 

 lf-l-100 

 li-i-100 



May 31 

 lf-i-100 

 1^^100 



June 4 

 If-f-lOO 

 U-§-100 

 lJ-i-100 



1 1 1 



100 

 100 



lr-7 

 11-^100 



June 15 



lM-100 

 l§-§-100 

 lf-i-100 



lf-§-100 

 li-i-100 

 11-^100 

 U-i-100 



June 14 

 lKj-100 

 lM-100 

 l|-i-100 



June 25 

 lf-^100 

 l§-i-100 

 1^-^100 



lj_i_100 

 U-i-100 

 lJ-f-100 



•A' 



July 2 

 ll-l-lOO 

 U-l-100 

 U-i-lOO 

 U-l-100 



U-l-100 

 U-^-100 

 l|-i-100 

 11-^100 



July 2 

 lf-i-100 

 1^-100 

 IJ-J-OIO 



July 13 

 li-^lOO 



n- 



hioo 



^-100 



U-f-100 

 U-l-100 



U-i-100 



31-5 

 8-8 

 00 

 13-2 

 13-4 

 40-8 

 37-7 

 17-1 

 17-8 

 28-1 



47-6 

 470 

 45-4 

 87-4 



8-9 



4-2 



7- 



6- 

 25- 

 18- 

 21- 

 21- 

 43- 

 51-4 

 322 

 42-9 



Sprays .applied at different d.\te3. 

 Summary. 



Number 



of 

 Experi- 

 ments. 



Lime-Sulphur 1-008 Specific Gravity 

 or 

 One gallon Concentrate to make 37 gals, spray and 5 lbs. Arsenate of Lead 



to 100 gallons. 



Per cent 

 of Scab. 



16 

 9 

 9 

 1 

 1 



14 



Two before and two after blossoms 



One before blossoms, midway between first and second and two after blossoms. 



One just before and two after blossoms 



Two after blossoms only 



One two weeks after blossoms 



No spray -. 



Soluble Sulphur IJ lbs. and 5 lbs. Arsenate of lead to 100 gallons. 



Two before and two after blossoms 



One before blossoms, midway between first and second and two after blossoms 



One just before and two after blossoms 



No spray 



8-35 

 11-48 

 10-33 

 31-30 

 88-70 

 68-6 



16-S 

 36-7 

 34-2 

 65- 1 



SOLUBLE SULPHUR VERSUS LIME SULPHUR. 



A number of tests have been made with soluble sulphur-arsenate of different 

 strengths to compare with lime-sulphur-arsenate for apple scab control and the 

 results as given in the summary would go to show that the scab control was sliglitly 



Kentville. 



