58 NEBRASKA STATE HORTICULTURAL SOCIETY 



eat it off almost instantly and leave everything like new. Remove the 

 strainer to do it though, for if the acid gets on the rubber hose any- 

 where it will make a strainer of that too. 



In making the following table of costs a man's wages were reck- 

 oned at $2.00 per day and a team at $1.00 per day. On account of de- 

 lay in shipping, lime-sulphur was not used in the third spraying and 

 the amount used in the second spraying was reduced to three gallons 

 per 250 gallons of water. This, of course, reduced the total cost slightly. 



Number of Spray. First, May 2d; second. May 13th; third, June 

 14th; fourth, July 31st. Number of 250 gallon tanks used on first spray- 

 ing, 10; second spraying, 32^/^; third spraying, 19^/^; fourth spraying, 

 14. Number of gallons of lime-sulphur used first spraying, 70; second 

 spraying, 97%; third and fourth sprayings, none. Pounds of lead-ar- 

 senate used first spraying, none; second spraying, 325; third spraying, 

 195; fourth spraying, 140. Gallons of gasoline used, first spraying, 7'^; 

 second spraying, 24i/^; third spraying, 14; fourth spraying, 10 V^. Cost of 

 materials used: Lime-sulphate, first spraying, $11.20; second spraying, 

 $15.60; none the third or fourth sprayings. Lead-arsenate, none the 

 first spraying, and $21.93 the second; $13.16 the third; and $9.45 the 

 fourth. Cost of gasoline: First spraying, $1.20; second spraying, $3.92; 

 third spraying, $2.24; fourth spraying, $1.68. Total for materials used: 



Number of 250-gallon tanks used altogether 77 



Amount of lime-sulphate used altogether (gallons) 167^ 



Pounds of lead-arsenate used altogether 660 



Gallons of gasoline used altogether 56^/^ 



Cost of lead-arsenate for 4 sprayings $44 54 



Cost of lime-sulphate for 4 sprayings 42 80 



Cost of gasoline for 4 sprayings 9 04 



Cost of materials used in first spraying 12 40 



Cost of materials used in second spraying 41 45 



Cost of materials used in third spraying 15 40 



Cost of materials used in fourth spraying 11 13 



Total cost of four sprayings $80 38 



Time used in first spraying 2 days 



Time used in second spraying 5 days 



Time used in third spraying 3 days 



Time used in fourth spraying . 2^4 days 



Total time used in spraying 12 V4 days 



Labor cost first spraying $14 00 



Labor cost second spraying 37 50 



Labor cost third spraying 21 00 



Labor cost fourth spraying 16 87 



Total labor cost of four sprayings $ 89 37 



