Increasing the number of men per crew usually inci*et3ae(i the cost of 

 spraying. Thus, increasing the number of men from 1 to 2, increased the cost 

 of spraying per acre 74 cents in Michigan and 80 cents in the Chautauqua-Erie 

 belt, (table 82«) This comparison is of cost alone and does not consider the 

 effectiveness 7/ith which the spray v/as applied. More spray was applied per 

 acre and the foliage was probably more effectively covered with the larger out- 

 fitsi 



Table 82 • - Cost per acre of vineyard for applying one spray or dust 



with indicated crew, by areas, 1928 





:Vine- ; 



; Amcunt ; 

 ; applied' 



;TiBie to : 

 ; cover ; 





Cost per acre 





Kind, area and cve\r 



Man . : 



Motive ; 



; Ma- : 



Total 





; yards ; 



per aero; 



;tno. acre: 



labor : 



power : 



chine : 



, 1/,., 





Numbei' : 



Ballons ; 



. Hours : 



Dollars: 



Dollars : 



Dollars ; 



Dollars 



Power sprayer j 

















Arkansas (1929) : 

















2 men-S horses : 



; 8 : 



101 ! 



1,5 i 



0,74 : 



0,43 : 



1.02 : 



2.19 



5 men-2 horses j 



49 : 



166 : 



. 2,0 : 



1.36 ; 



,56 : 



1,10 : 



3,02 



Michigan ; 

















1 man--2 horses : 



30 : 



81 : 



0.9 : 



.43 : 



.39 : 



1.11 : 



1.93 



2 men-2 horses : 



19 ' 



99 '• 



1.2 : 



1,04 : 



.57 : 



1.06 : 



2.67 



3 to 5 men - 2 to: 

















3 horses : 



5 i 



125 1 



1 1,4 : 



1,97 i 



,48 : 



1,28 : 



3.73 



Ghaut auqua -Erie : 











i 







1 man-2 horses : 



: 22 i 



113 : 



• 1.4 : 



,80 : 



,49 : 



1.58 : 



2,87 



2 men-2 horses : 



31 : 



149 : 



■ 1,4 : 



1.26 : 



.79 : 



1.62 : 



3,67 



3 men-2 horses : 



; 10 : 



97 ; 



1.4 : 



1,90 : 



.61 : 



1,10 : 



3,61 



1 to 2 men-tracto2 



? 18 ; 



117 i 



0,8 : 



,85 : 



.63 : 



,97 : 



2,45 



Hudsnn Valley : 

















3 men-2 horses : 



: 7 : 



142 ; 



, 2,0 ; 



; 2,57 = 



1.04 ! 



1 1,17 : 



4,78 



Finger Lakes : 









• * * 



• • * 









1 to 3 men-1 to : 

















2 horses 



i 11 



: 70 



'. 1.1 '. 



• 1,09 . 



■ .42 • 



; 1,19 ; 



; 2,70 



Traction sprayer : 











1 







Finger feikes 













c : 





1 to 2 ^men- 1 to - 

















2 horses 



• 14 



: 42 



: 1,6 



: 1.25 



• .,48' 



• .35 



t 2*06 



Power duster ; 











1 







Michigan 





: (PcunsfB) 













1 man-2 horses 



: 17 



' ^16 



: 0,4 



• ,17 



': ,13 



: .51 



: .81 



Chautauqiua-Erie 















«■ ' A ^ 



1 man-2 horses .. 



: 5 



: 21 



: 0.5 



: ■ .21 



: .28 



• .92 



: 1.4:1 



2 men-2 horses 



: 5 



: 27 



: 0.3 . 



: " .23 



.18' 



: .71 



: 1*12 



1/ Does not include cost of material 



In the Chautuuqua-Erio area 18 vineyards werd sprayed with a tractor- 

 draY/n outfit, it required less" time per' acre, on the. average, • to spray these- 

 vine^^ards with a ttac tor-drawn outfit than it did other vineyards in the 

 Chautauqua-Erie area whore horses were used to haul the sprayer. The total cost 

 of spraying an acre of vineyard onoe averaged less for the tractor-drawn than . . 

 for the horse-drawn sprayers. 



