DITISIOy OF HORTICULTURE 



751 



SESSIONAL PAPER No. 16 



wliicli tested 1-30 sp. gr. to 36 gallons water to which was added 5 pounds arsenate of 

 lead to 100 gallons. 



An average of the results as given in the summary shows that soluble sulphur 

 arsenate with barium chloride at Berwick and Falmouth did not control scab as well 

 as the lime-sulphur-arsenate, while at Bridgetown the reverse is shown. 



Soluble Sulphur and Barium Chloride vs. Lime-sulphur. 



Where test m'Jkde and variety. 



Spray used four times on each plot. 



Berwick 



Gravenstein 



Ben Davis 



Blenheim 



Twenty Ounre. . . 

 Tompkins King. 



Ribston 



Gravenstein 



Tompkins King. 



Gravenstem 



Ben Davis 



Blenheim 



Twenty Ounce 



Tompkins King....^. 



Ribston. 



Gravenstein 



Tompkins King 



Gravenstein 



Ben Davis 



Gravenstein 



Tompkins King. 



Bridgetown _ 



Gravenstein 



Ben Davis 



Tompkins King 



Stark 



Roxbury Russet (Nonpareil). 



Gravenstein 



Ben Davis 



Tompkins King 



Stark 



Roxbury Russet (Nonpareil). 



Soluble sulphur H lbs. Barium ^ lb 



i< 11 << 



'■2 

 << 11 It 



•^2 

 « 1 1 « 



^2 

 « 11 « 



^2 

 << 11 « 



^2 

 l< 11 << 



it 11 II 



^2 



.\verage of eight varitics.. . 

 Lime-sulphur 1-008 sp. gr., or 1 to 37 gals 



to 100 gals. 



' 100 " 



' 100 " 



' 100 " 



' 100 " 



' 100 " 



' 100 " 



' 100 " 



1,008 



" 1-008 



" 1-008 



" 1-008 



" 1-OOS 



" 1008 



1008 



Average of eight varieties. 



No Spray 



61 

 37 

 37 

 37 

 37 

 37 

 37 



Average of four varieties. 



Soluble sulphur I lb.. Barium 



Gravenstein 



Ben Davis 



Tompkins King 



Stark 



Roxbury Russet (Nonpareil).. 



Falmouth 



Xortliern Spj'. . 

 Golden Russet. 



Average of five varieties. . 



Lime-sulphur 1008 sp. gr., or 1 to 37 gal 

 1008 " 1 " 37 " 



1-008 " 1 " 37^ " 



1-008 " 1 " 37 " 



1008 " 1. " 37 " 



Average of five varieties 



No spray 



Northern Spy . . 

 Golden Russet. 



Northern Spy. . 

 Golden Risset. 



Average of five varieties 



Soluble sulphur U lbs. Barium 

 II 11 <( 



Average of two varieties. . 

 Lime-sulphur 1-008 sp. gr. 



1-008 

 Average of two varieties. . 

 No Spray 



to 100 gals. 

 " 100 " 



or 1 to 37 gals. 

 1 " 37 " 



Per cent 

 Scab. 



Average of two varieties. 



Si- 

 lo- 

 s' 

 8- 

 13- 

 47- 

 18- 

 16- 

 16- 

 3- 

 0- 

 0- 

 10- 

 1- 

 10- 

 7- 

 6- 

 91- 

 75- 

 87- 

 82 ■ 

 84. 



21 ■ 

 9- 

 4' 

 9' 

 3. 

 9 

 36 

 8 

 6 

 8 

 3 



12 

 93 

 73 

 57 

 57 

 42 

 65 



4 

 7 

 6 



3 



1 



51 



34 



A?. 



4 



16 



41 



13 



22 

 46 



7 



47 

 62 

 44 

 64 

 2 





 18 



71 

 00 

 74 



2 



8 



67 



00 



S3 



4 



2 



Kemtville. 



