56 



SPRAYING THE APPLE ORCHARD. 



Material. 



Bordeaux Mixture. 



3 pounds copper sulfate at 8c $0.24 



4 pounds lime at Ic .04 



$0.28 



Arsenate of lead, 2 pounds at 20c., or Paris green, \i> 



pound at 2.5c .40 



Total cost of spray material per barrel §0.68 



One barrel (50 gallons) covers 20 20-year-old apple 



trees, or cost of material per tree .034 



Labor. 



Two men at $1.50 per day $3.00 



One horse at $1.50 per day 1.50 



$4.50 



Will cover 150 trees per day, or labor per tree 0.03 



Total cost per tree for otie spraying $0,064 



Cost of first spraying with copper sulfate only .038 



Total cost of four sprayings per tree .23 



Can I Afford Not to Spray? 



Profit from Spraying an Orchard of 100 Trees. 



Average gross profit per tree, based on above experiments (see 



pages 26-33) at $1.25 $125.00 



Four sprayings at 23c., or say 25c. per tree $25.00 



20% on $40 invested in the best outfit 8.00 



33.00 



Net profit $92.00 



Less cost of outfit 40.00 



Net profit for first year (80% on total investment) $52.00 



Can you make money more easily? 



Lj^. 



>^ 



WSi^'^'^i^-^ 



^«^ 



^;-v/S?5ii'i 



■:„^^^i4ii«^ 



? mi'':-  



Fig. 36.—" It Is difficult to spray trees . . . following a stone wall." 



