Ill GYPSY AND BROWN-TAIL MOTHS. [Jan. 



SAUGUS, JUNE 20, 1907. 



During the period this outfit was under observation, 40 street trees, 

 chiefly elm and Norway maple, from 25 to 40 feet in height, 40 fruit 

 and small shade trees ranging fmm 10 to 15 feet in height, 30 shrubs 

 and a few rows of currant bushes were treated. Forty per cent, of 

 the trees were climbed. 



Outfit. 



A 3 l /2 horse-power Fairbanks-Morse engine, with Deming triplex 

 pump, 5 lines of ^--inch hose and single Vermorel and Bordeaux 

 nozzles, was used. The tank carried 650 gallons of spray, the entire 

 outfit when loaded weighing about 5 tons. Six hundred gallons of 

 spray, containing ]() pounds of Bowker's arsenate of lead to 100 gal- 

 lons, were used. 



Cost. 



1 team and driver, day, . . SO 2.', s:j 13 



6 men, day, . 2 25 6 75 



(10 pounds arsenate of lead, . 12 7 20 



2\ gallons gasoline, . . 20 50 



Oil, grease and waste, . 05 



Total, . . 817 63 



A verage cost of treatment, about 22 cents per tree. 



SAUGUS, JUNE 20, 1907. 



Shade trees averaging 28 feet in height and fruit trees, mainly apple, 

 averaging 20 feet in height, were sprayed in a residential section. A 

 part of the shade trees and a few of the larger apple trees were 

 climbed. One hundred and seventy-five gallons of spray, containing 10 

 pounds of arsenate of lead to 100 gallons of water, were used in this 

 work. 



Outfit. 



A Bonanza hand pump, made by the Deming Company, Salem, 0.. 

 mounted on a 100-galIon hogshead, with 2 lines of U-inch hose, equipped 

 with single Yermorel nozzles, was used. Two men were required to 

 operate the pump. All tnld, 63 trees were treated during the time the 

 outfit was under observation. 



Cost. 



1 horse, Jday, . $1 50 s , 31 



' "'""' J da y 2 00 3 50 



'. ni.-n, | day, 2 25 5 91 



pounds arsenate of lead, . 12 2 10 



Tot:i1 ' . . 812 82 



Average cosl >f treatment, 20.3 cents per tree. 



