48 



BULLETIN 614, IT. S. DEPARTMENT OF AGRICULTURE. 



Table XXXV. — Summary of spraying expenditures on 120 farms in Yakima Valley, 



by districts. 



Item. 



North Ya- 

 kima dis- 

 trict. 



Zillah dis- 

 trict. 



North Ya- 

 kima and 

 Zillah dis- 

 tricts com- 

 bined. 



Man-hours per acre 



Horse-hours per acre 



Labor cost per acre 



Material cost per acre 



Total cost per acre 



Gallons of material per acre 

 Gallons of material per tree 



Labor cost per box 



Material cost per box 



Total cost per box 



31.99 

 21.78 

 811.26 

 $10.55 

 $21.81 

 1,773.09 

 22.67 



42.07 



28.85 



$14. 84 



$14. 12 



$28. 96 



,364.69 



34.67 



. 0243 

 . 0228 



.0372 

 .0355 



.0471 



.0727 



36. 69 



25.08 



$12. 93 



$12.21 



$25. 14 



2,049.17 



27.84 



$0.0299 

 .02S3 



Table XXXVI.- 



-Summary of spraying practices and pro rata cost by sprays on farms 

 studied in Yakima Valley. 





Num- 

 ber 



mak- 

 ing 



spray. 



Per acre. 



Gallons. 



Mate- 

 rial 

 cost 

 per 

 acre. 



Total 

 cost 

 per 



acre. 



Per cent 

 of total 



Spray. 



Man- 

 hours. 



Horse- 

 hours. 



Cost. 



Per 



acre. 



Per 



tree. 



labor and 



material 



spraying 



cost. 





120 

 120 

 94 

 86 

 118 

 50 

 10 



7.89 

 7.78 

 5.50 

 5.08 

 6.90 

 3.09 

 .45 



5.37 

 5.33 

 3.74 

 3.48 

 4.72 

 2.11 

 .34 



$2.78 

 2.74 

 1.94 

 1.79 

 2.43 

 1.09 

 .16 



430.12 

 454. 10 

 309. 61 

 282. 97 

 381.03 

 164. 15 

 27.19 



5.84 

 6.17 

 4.21 

 3.84 

 5.18 

 2.23 

 .37 



$6.03 

 1.73 

 1.15 

 1.10 

 1.42 

 .65 

 .13 



$8.81 

 4.47 

 3.09 

 2.89 

 3.85 

 1.74 

 .29 



35.04 



First lead-arsenate or calyx. 



17.78 

 12.29 





11.50 





15.32 





6.92 





1.15 







MISCELLANEOUS LABOR. 



A certain amount of labor done on the various ranches during the 

 year is classified as miscellaneous labor. Among the more important 

 items are overhauling the spray outfit, scraping and doctoring the 

 trees, cutting blight, summer pruning, cleaning of lateral ditches, 

 cutting water spouts, and hoeing about the trees. This miscel- 

 laneous labor charge on the 75 clean-cultivated orchards was 12.09 

 man-hours and 0.92 horse-hour, or $3.16 per acre and $0.0070 per 

 packed box; while in orchards under mulch-crop management this 

 charge was 7.21 man-hours and 0.52 horse-hour, or $1.88 per acre 

 and $0.0047 per packed box. 



Considering the 120 orchards, the annual miscellaneous labor charge 

 was $2.68 per acre or $0.0062 per packed box. 



TOTAL MAINTENANCE COST. 



The total maintenance labor on 43 orchards under clean-cultural 

 management in the North Yakima district was 208.14 man-hours and 

 97.67 horse-hours, while on the 32 orchards under similar management 

 in the Zillah district the charge was 241.92 man-hours and 104.03 

 horse-hours. 



