May, 1931] Studies in Economics of Apple Orcharding 



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highest in 1928 with 809 hours. The lowest was Farm 8 with 128 

 hours in 1926 and I'S hours in 1927. In 1928, Farm 10 was lowest 

 with 190 hours. 



In two instances, on the same farm, the differences in total hours 

 varied greatly from year to year. Farm 2 devoted 572 hours, 330 

 hours and 809 hours, respectively in the three years. The low re- 

 quirement in 1927 was due to omission of some sprays on trees with 

 low yields. In 1928, extra oil sprays, used to check the red mite, ac- 

 count for the high labor requirement. 



I 



It 



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A dusting machine held in reserve may enable a man to cover his orchard 

 in a pinch without extra skilled men or extra horses. 



Farm 7 made some progress in efficiency of applying the liquid 

 spray. In 1926, a three-man crew was used, one driver and two 

 sprayers. The tank w^as filled at the barn by means of a % inch hose. 

 In 1927, a two-man crew was used and a storage tank with 3 inch hose 

 connection was put up. The total time in dusting and spraying per 

 1,000 tree unit on this farm in 1926 was 278 hours, and in 1927 was 

 171 hours. A considerable portion of this reduction in time is due to 

 the indicated changes. On large tracts, the installation of several 

 filling stations fed by a small pipe and automatic float valve would be 

 advisable. 



These data have to do with the actual situation on the several farms ; 

 but because the farms are not using the same sprays, the results should 



