320 Report OF THE DEPARTMENT OF ENTOMOLOGY OF THE 
spring while the trees were dormant and were continued until the 
buds commenced to burst. 
The items of expense and the cost of the different sprays are as 
follows: 
Cost oF SPRAYING NIAGARA COUNTY ORCHARD IN 1907. 
CRUDE OIL EMULSION (20 PER CT. OIL). ...... Reyes = es 
Number: Of trees “sprayed, va... 00.0 sehen oe. ke ee 149 

. 1650 gallons of emulsion: 

230! gallons. ofvoilrat ii2ictsapenigalloni® .Lkat 875% Sec ee ees $39 60 
8214i,lbs.wish-otlysoap) atessaucts: per lbjspeneswnes op eee 474 
mye ionts-searbolio-acith atae4 Cac. «cokes Aiea ae eneee 2 76 
2 eT TOT) 3 oa SAL ep lrbOs y tarts vaicbeats Stine cic oe Seine IO 50 
Yetedim "Tor 3444days “av $2.00ns sce eae ccc ne Bante viene 7 00 
Wear con-sprayerecs eae Nas Rik Bln TITLE ed eee 4 90 
OAs nok nik er bia eres Cee es ee Te On ee $69 50 
‘Average number of gallos. per -tree.r., os cea eee II 
‘Cost of materiais for spray, per gallon of mixture............... 2% cts. 
Average. cost of spray per treecic. «|. <nies oben niiem Eee 31% “ 
Avetage.cost of Jabor.and team penitree <2 <s.0dauass Me ee tives 
Average cost of treatment per tree........:.+. tind os ee 4634 “ 
SUPPLEMENTARY TREATMENT: CRUDE OIL EMULSION (16 PER CT. OIL). 
Number, of trees” treated 2... <\h, sich, eaten Ui ogc aaa peek ee 166 
‘600 gallons of crude oil emulsion: 
96 gallons of crude oil at 12 cts. per gallon................. $1I 52 
247\bs.ifish-oil:soapsabissaycthermperdbgOsth « Geautttacaued Gaeleee I 38 
1%4 gallons crude carbolic acid at 54 cts. per gallon......... 81 
een TOt- T Gay at ol. SOs. mac gk «ei ame ask coe lel oe ct Ae 3 00 
Ee gear: 1OT 1 Cay al pe. cce sec. abe mee ce tees arr 2 00 
‘Wear? On Sprayer ss: 20s. dee ee le cue cre ee eee e bee ate, ae eee pe I 40 
hotalss.. sve com dares. paranae neki aehes basa Oe i Feawte $20 I1 
Average. numberof gallons iperatree.. . in. waypiehe> aan ee ~. 33% 
Cost of. materials. for spray, per gallon Of mixture. . st... os. ose. 2% cts. 
Average cost*ot spray per tite,..2:-.. eens ee ee ee es ae See 8% “ 
Average cost of labor and team per tree........... Veoay ate 1 Poe ate 
Average cost of treatment per tree........... bts sleds OS 12s 
LIME-SULPHUR WASH. 
"Number of trees sprayed.............. sa ates puecal « aanhy ieite tery: ee 298 
