February, 1922. 



SCIENTIFIC AGRICULTURE. 



187 



Tlie cost of matei'ials and application 

 for the first spraving was as follows : 

 6 lbs. Copper Sulphate at 0.10 . . $0.60 



8 lbs. Lime at 0.02 0.16 



2 nozzle-men, 1 hr. at 0.25 each . . 0.50 

 Man & team, 1 hr. at $4.00 per day 0.50 



Total cost . . . . $1.76 

 Cost per tree of first aplicatiou, 9.77c, 

 (or roughly ten cents). 



Following the application on September 

 6th, the dry spell continued and practically 

 not a drop of rain fell up to the time the 

 apples were harvested about October 21st. 

 In consequence of this there was a hea^y^ 

 coating of Bordeaux still adhering to the 

 fruit when it was picked. The dry weather 

 also caused a shortage of water and we^ 

 were unable to carry out our original plan 

 of putting on the second application as soon 

 as tlie fruit was picked. Rain began to 

 fall on October 25th and continued inter- 

 mitt entlj' until November 8th. On this 

 date the weather was favourable and the 

 second spray of 6-6-40 Bordeaux was ap- 

 plied to Plots 2 and 3; 80 gallons of mix- 

 ture were made up and there was suf- 

 ficient to spray 4 trees besides the 18 in 

 Plots 2 and 3, so that the average number 

 of gallons per tree was 3.63. 



The cost of materials and aplicatiou for 

 the second spraving was as follows : 



12 lbs. Copper Sulphate at 10c 1.20 



12 lbs. Lime at 2c 24 



2 nozzle-men, 1 hr. at 25c. each. . .50 

 Man and team, 1 hr. at $4.00 per day .50 



Total cost ." 



Cost per tree of second application 



$2.44 

 11.09c 



In both sprayings and in the following 

 sprayings a Bean Giant Triplex power- 

 sprayer was used and a pressure between 

 180-200 lbs. was maintained. The long- 

 distance Friend nozzle was used in all 

 sprayings. 



Storing and Packing of Sprayed 

 Apples, 1916. 



After the apples were picked on October 

 21st they were placed in orchard-boxes in 

 ordinaiy shed storage and held until the 

 first week in February, 1917. They were 

 then packed and sold locally. The crop 

 averaged one half box per tree. 



It was found that when packing was 

 commenced practically no sign of the Bor- 



deaux mixture could be found, except very 

 occasionally in tlie calyx or stem end of 

 the apple, and it was thus unnecessary to 

 wipe the fruit. However, the surface of the 

 apples was left in a very sticky condition 

 and it was almost impossible to wipe the 

 fruit unless it Avas first washed. No com- 

 plaint was received in reference to the ap- 

 ples after they were sold. 



Figure 1. — Branch of apple' tree showing tj'pe 

 of anthracnose canker. 



Counts of Infection, 1917. 



On May 25th J. W. Bastham, Plant Pa- 

 thologist, made the counts for infection on 

 the plots with the following results.- 



Plot 1, early spray, 270 one and two- 

 year-old branches examined from 5 trees 

 and 31 were found to be infected, or 11.4 

 per cent. 



Plot 2, early and la^e spray, 375 one and- 

 two-year-old branches examined from 5 

 trees and 27 were infected, or 7.2 per cent. 



