210 THE SPRAYING CAMPAIGN 



First spraying, lime-sulfur of winter strength before the 

 buds swell, for San Jose scale, leaf curl and brown rot. 



Second spraying, with self -boiled lime-sulfur when the fruit 

 is the size of the end of one's thumb, principally for the brown 

 rot. In sections where this brown rot or monilia is particularly 

 bad it is recommended to make three sprayings for it with the 

 self -boiled lime-sulfur, the first about a month after the petals 

 have fallen, the last about a month before the fruit is ripe, and 

 the second about half way between these two. 



Cost of Spraying. It remains to say a word about the cost 

 of spraying. This is an item which varies so much that it might 

 show better judgment to omit the discussion of it altogether. 

 But it is hoped that the following figures, like others that have 

 been given, may be at least suggestive. 



A block of 53 bearing Baldwin trees, probably thirty years 

 old, was sprayed for San Jose scale, using an outfit consisting 

 of a team and three men at a combined cost of 87 1 /o cents per 

 hour. 



Time, 7% hrs. @ 87% cents (cost of labor) $6.56 



Materials 431 gal. spray (Oil 1 to 12 = 32% gal., @ 35 cents) 11.38 



Total cost $17.94 



Labor cost per tree 12% cents 



Material cost per tree 21% cents 



Total cost per tree 34 cents 



It should be said in explanation of these figures that the work 

 was done with great thoroughness, .as it was especially desired 

 not to let any of the scales escape. 



The same block of fifty-three trees was sprayed for codling 

 moth at the following cost: 



Time, 6% hours (3 men and team) @ 87% cents (cost of labor) $5.69 



Materials 250 gal. spray (3 Ibs. arsenate of lead to 50 gal.) = 15 Ibs. 



arsenate of lead, @ 8 cents 1.20 



Total cost $6.89 



Labor cost per tree 10% cents 



Material cost per tree 2% cents 



Total cost per tree 13 cents 



Total cost per barrel of apples, about 4 cents 



