DIYISIOX OF nORTICrLTURE 



741 



SESSIONAL PAPER No. 16 



DORMANT VERSUS NO DORMANT SPRAY. 



Experiments were continued this season to get further information as to the 

 value of the dormant spray put on before the buds open to control scab. Different 

 strengths of lime-sulphur were used in these early sprays and the results would seem 

 to show some gain, although the gain is not sufficient to make this a necessarj^ spray. 

 It will be noticed that the per cent of scab from nine plots is 7-13 per cent and that 

 this does not include two plots at Bridgetown where there was 36 and 21 per cent of 

 scab. These two plots were high in scab owing to being adjacent to a plot not sprayed, 

 which resulted in a light late infection, and were these included the average would 

 be 11-51 per cent scab on the plots receiving other than dormant spray. 



It will also be noticed that tests have been made with varying strengths of lime- 

 sulphur for the first spray with the three following sprays similar. It would' appear 

 from this that there is no advantage in using a strength greater than that generally 

 used for summer for this spray. The plot where the 1-OiO strength was used was also 

 adjacent to a check plot and the high per cent of scab in it can in this way be accounted 

 for. The results would seem to confirm previous experiments that the dormant spray 

 is of little value and that a strength of spray greater than 1-008 is unnecessary. 



Value of the Dormant Sprat. 



Place where test made and variety. 



Time of application. 



Per cent 

 Scab. 



Berwick 

 Gravenstein. 



Not sprayed. 

 Ben Davis... 



Not sprayed 



Tompkins King. 



Not sprayed . 

 Gravenstein.. 



Not sprayed. 

 Bridgetown 

 Gravenstein., 



Not sprayed 



Gravenstein 



Not sprayed 



Tompkins King. 



Not sprayed. 

 Ben Davis.. . 



Not sprayed 



Roxbury Russet (Nonpareil). 



Not sprayed. 

 Stark 



Not sprayed. 

 Berwick 

 Spy 



Not sprayed. 



April 26 

 1-014 



1-014 



1032 

 1-014 

 1-008 



May 17 

 1008 

 1-008 



1008 

 1-008 



April 27 

 1-032 

 1-014 

 1-008 



April 28 

 1-028 



1-028 



1-028 



1028 



1-028 

 'i-028' 



1008 

 1008 

 1-008 

 1008 



June 1 

 1-008 

 1008 



1-008 

 1-008 



1-008 

 1-008 

 1-008 

 1-008 



May 17 

 1008 

 1-008 

 1-010 



May 18 

 1008 

 1-008 



1-008 

 1008 



1-008 

 1-008 



1-008 

 1-008 



1-008 

 1008 



Mav 19 

 1-014 

 1009 

 1-008 

 1-007 



May 31 

 1-008 

 1-008 

 1008 

 1-008 



June 15 

 1-008 

 1-008 



1-008 

 1-008 



1008 

 1008 

 1-008 

 1-008 



May 28 

 1-008 

 1-008 

 1-008 



Mav 28 

 1-008 

 1-008 



1-008 

 1-008 



1-008 

 1-008 



1-008 

 1008. 



008 

 008 



June 8 

 1-008 

 1-008 

 1-008 

 1-008 



June 14 

 1-008 

 1-008 

 1-008 

 1-008 



1-008 

 1008 

 1008 

 1-008 



June 15 

 1-008 

 1-008 

 1-OOS 



June 15 

 1-OOS 

 1-008 



1008 

 1-008 



1-008 

 1-008 



1-008 

 1-008 



1008 

 1-008 



June 18 

 1-008 

 1-008 

 1-008 

 1-008 



Julv 2 



1-008 



1-008 



1-008 

 1-008 



July 1 

 1008 

 1-008 

 1-008 

 1008 



1-008 

 1008 

 1-008 

 1-008 



June 25 

 1-008 

 1008 

 1-008 



June 26 

 1-008 

 1008 



1-008 

 1-008 



1008 

 1-008 



1-008 

 1-008 



1008 

 1-008 



July 1 

 1-008 

 1-008 

 1008 

 1008 



12-4 

 16-2 

 91-0 

 3-7 

 4-5 

 75-3 



2-1 



•3 



2-3 



7-7 

 92-8 



61 



4-5 



8-4 



10-1 



87-4 



80 

 21-0 



11- 

 98-0 



8-5 

 36-0 

 93-2 

 8-04 

 6-47 

 57-18 

 6-83 

 8-07 

 73-61 

 3-77 

 3-44 

 42-0 

 6-77 

 8-G2 

 62-71 



3-6 

 3-55 

 4-47 

 4-29 

 95-2 



Kentville. 



