COST OF PRODUCING APPLES IN WESTERN COLORADO. 



29 



The usual spraying crew is 3 men and 2 horses, although many use 

 2 men and 2 horses. On tho farms studi'ed approximately 73.5 per 

 cent use the 3-2 crew in Mesa County, 70.5 per cent in Delta, and 

 73.3 per cent in Montrose. In Mesa 20.4 per cent use the 2-2 crew, 

 19.6 per cent in Delta, and 6.7 per cent in Montrose. Of all other 

 crews, which include 1-2 crews, 4-2 crews, etc., 2.04 per cent are 

 found in Mesa, 9.93 per cent in Delta, and 20 per cent in Montrose. 

 (See Table XVII.) 



Table XVII. — Spraying practices (125 ranches, western Colorado). 



Spray. 



Using lime-sulphur spray. . 

 First lead arsenate spray . . 

 Second lead arsenate spray 

 Third lead arsenate spray . 

 Fourth lead arsenate spray 

 Fifth lead arsenate spray. . 

 Sixth lead arsenate spray. . 



Mesa. 



Num- 

 ber. 



Per 



cent. 



41 

 100 

 100 

 100 

 96 

 86 

 47 



Crew. 



All 



others. 



Delta. 



Num- 

 ber. 



Per 



cent. 



7 

 100 

 98 

 74 

 36 



8 



Crew. 



2-2 



All 

 others. 



Spray. 



Montrose. 



Num- 

 ber 



Per 



cent. 



Crew. 



3-2 



All 

 others. 



All counties. 



Num- 

 ber. 



Per 



cent. 



Crew. 



3-2 



All 



others. 



Using lime-sulphur spray. . 

 First lead arsenite spray — 

 Second lead arsenate spray. 

 Third lead arsenate spray... 

 Fourth lead arsenate spray. 

 Fifth lead arsenate spray.. . 

 Sixth lead arsenate spray... 



20 

 100 

 100 



73 



27 

 12.5 

 124 

 105 

 69 

 47 

 23 



21.6 

 100 

 99.2 

 84.6 

 55.2 

 37.6 

 18.4 



Table XVII gives a general idea of the practice, while Tables 

 XVIII and XIX give detailed data on the efficiency of the 3-2 

 crew as compared with the 2-2 crew, which is shown to be fully as 

 efficient as the 3-2 crew. This is because ordinarily the third man 

 of the 3-2 crew is a driver and does not handle an extra lead of hose. 

 Thus there are usually only two leads of hose, whatever crew is used. 

 Table XX summarizes the efficiency data for the 3-2 and 2-2 crews. 



