1908.] PUBLIC DOCUMENT- -No. 73. 143 



AlIoAving 9 cents for spraying' the 15 rose bushes, the cost of spraying 

 the shade trees was 45 cents each. 



SAUGUS, JUNE 20, 1907. 



This spraying included work on street trees, fruit and other trees in 

 yards, and the forest trees in uncleared lots along the roadside. Three 

 hundred and fifty trees averaging 35 feet in height, and about 1 acre 

 of brush, a part of which was in the area where no trees were growing, 

 were treated. About 25 per cent, of the trees were climbed. 



Outfit. 



A 1^/2 horse-power Lunt & Moss engine, with a small double-acting 

 pump, connected with 5 lines of Vo-inch hose, was operated. Single 

 Vermorel nozzles were used, the insecticide, Bowker's arsenate of lead, 

 being applied at the rate of 10 pounds to 100 gallons of water. 



Cost. 



1 team and driver, $ day, . $6 25 $3 13 

 6 men, % day, ... 2 25 6 75 



50 pounds arsenate of lead, . . 12 6 00 



2 gallons gasoline, . . 20 40 

 Oil, waste, etc., ......... 05 



Total, . . $16 33 



Average cost of treatment, 4.6 cents per tree. 



SAUGUS, JUNE 20, 1907. 



Three hundred trees along streets and in vacant lots were sprayed 

 with arsenate of lead, at the rate of 10 pounds to 100 gallons of water. 

 About 25 per cent, of the trees, which average 25 feet in height, were 

 climbed, and a small amount of brush in the vacant lots was also 

 treated. 



Outfit. 



A 41/2 horse-power Olds engine, with double-acting pump, a ' 350- 

 gallon tank and 4 lines of %-inch hose, equipped with single Vermorel 

 and Bordeaux nozzles, was used ; each hose line was 100 feet long. 



Cost. 



1 team and driver,^ day, . $6 25 $3 13 

 5 men, * day, . 2 25 5 63 



35 pounds arsenate of lead, . . . . 12 4 20 



2 gallons of gasoline, ....... 20 40 



Oil, grease and waste, ........ 05 



Total, . . $13 41 



Average cost of treatment, 4.5 cents per tree. 



