New YorK AGRICULTURAL EXPERIMENT STATION. DA} 
THE JAMESPORT EXPERIMENT. 
Conducted by Henry A. Hallock, Jamesport, Long Island. 
Seventeen acres of potatoes were sprayed four times. The 
Sprayer used was a one-horse, four-row Hudson sprayer carry- 
ing two nozzles per row. The dates of spraying were June 11, 
17, 24 and July 10. The bordeaux was made by the 7-4-50 
formula. The water required was pumped by a gasoline en- 
gine and hauled from 40 rods to one-half mile. In two spray- 
ings arsenite of soda was used with the bordeaux at the rate 
of four quarts of the stock solution to 50 gallons of bordeaux 
mixture. There were four check rows. These received one . 
application of paris green on June 11. The whole season 
there was no perceptible difference between sprayed and un- 
sprayed rows. There was no blight, bugs did no damage and 
flea beetles were not troublesome. Apparently, there was 
nothing to spray for. 
The expense account contained the following items: 
PaO OEM SUA tes (Or OF Cnt ho viale slit le levees ed a Sir te s $32 .50 
Pee ASL DULwer ei ILRI Me Mink aciths Se Ca a, HD GY 3.00 
POs al SON8) @) 205 pier eb 4.00 
RT AWILEPALECTIIG (ly Ooo dui tA Kos eck cls cine ts we eo ete Ree 3.25 
ett LOT, (iB ba eine te ity eh ieee ew y Gmeek a weed URN etme 8.00 
Seer SBENOTG CDA OO Ny (CON a Latte) aise ae at dip «ih wie Vn A ets Weg) 4.00 
EL ODUCT AST ie Cay 2 TRO ge ae ge ROR ELAR AECL tl Bae LL 5.00 
Or MLC hater) 0 Pe tei gh a aS se ale dw dy al ee «a aieid's Abd Os $09 .75 
The test rows: (variety, Green Mountain) were 690 feet long 
by three feet. wide. They yielded as follows: 
Two sprayed rows, 648 Ibs.=113.6 bu. per acre. 
Two check rows, 640 lbs.=112.2 bu. per acre. 
.Gain, 1.4 bu. per acre. 
At the time of digging the test rows the market price of 
potatoes was 85 cents per bushel. At this price 1.4 bushels 
have a value of $1.19. Since the expense of spraying was 
$3.51 per acre the gain was not sufficient to pay EXD SOBER: 
There was a loss of $2.32 per acre. 
