8 2« 



The cost per hour for the use of a sprayer v/as largely determined by 

 the' number of hours the sprayer livfis used during the season. About 3 sprayers 

 out of 10 were used less than 50 hours during the season, averaging 30 hours. 

 The cost per hour for these spi'ayers avoraged $1.70. (table 79.) Twenty- 

 BB'v^en percent of the sprayers were used 150 hours and more, averaging 279 

 hours per season, and the cost per' hour for these s-prcycTs was only 44 cents. 

 Sprayers which were used 279 hours, did twice as much orchard as vineyard work. 

 Many of the large sprayers would not have been o\7ned on these farms except for 

 T-he orchards. 



Table 79. - Relation between hoiirs thct power sprayer v/as used during 

 season and cost of use, data combined for all areas, 1928 1/ 



Item 



Sprayers 



number 



Season's use per sprayer 

 Vineyard hours 



Other do 



Total 



Inventory value of sprayer 

 at end of year dollars 



Cost per season, per sprayer 

 Dopreication dollars 

 Repairs do 



G-as do 



Gil do 



Interest do 



Other do 



Total 



Cost of sprayer per hour do 



-II I . m iii.ii ii Tr i, 111 M ill I ■! I iii f- ii«i I » !■■ . .Ill ) ■ mm ii. ■ii.ii 



1/ Arkansas, 1929. 



Sprayer used - 



11 ' !■■ , '* 



OSS than 

 50 hours 



64 



25 

 5 



30 



E13 



27 



4 



2 



13 

 5 



51 



17«» 



50 to 99 

 hoiors 



70 



44 

 24 



68 



209 



29 

 7 



4 



1 



14 



61 



0,90 



100 to 149 

 hours 



23 



59 



57 



116 



215 



34 



14 



6 



1 



16 



8 



79 



0.68 



150 hours 

 and more 



60 



89 

 190 



279 



265 



44 

 26 

 17 

 5 

 19 

 12 



123 



0.44 



Spraying and Dusting .CroT.'s 



Three fourths of the vineyard spraying in Arkansas v;as done vath a 

 crev; of 3 men, usually 2 men T<'ho folloved the machine, each directing a nozzle 

 at the end of a long hose, and a driver. The trailer system was also generally 

 follov;ed in Hudson Valley, where 78 percent of the spraying was done with a 

 crew of 3 men or more, (table 80.) In Michigan ever one half of the spraying 

 of vineyards v/as done xiiVa. one man to the outfit, Nozzels v;ore fastened to a 

 frame on the side and rear of the machine. In the remaining areas, 2 men were 

 more commonly used with a sprr.yer than any other number. 



