New York AGRICULTURAL EXPERIMENT STATION. 201 
field was practically free from all kinds of insect and fungus pests 
excepting bugs, but these did no more damage to the unsprayed 
rows than to the sprayed ones. 
The items of expense were as folluws: 
amen per. ctiphate: (A) SC. sess. dgeccsatls.adle SIR eek $5 60 
EET, DES acca rcsvaie sorb atcechats tele’ «0 arog aA 5 Ns RAO wt OL HR 70 
Re IEW HOC OUD) LOCK echt aiclteotice « Gdpialardin ruvtahalee hue Fa aE P20 
SPEEDY TGNT CHPWETI EW ES Clr! oe voeaes. «Lda vgetonslevapunctassl-a arden! vlareceavedadnns 4 50 
EE EEeT AURAL CUNT ORG UU Oi PE ais . Gigty dees ola ends) ve %e Leelee end ent orienions 2 40 
Se I ea Ef ee cyano case bo oer ch nfo at aAalhay wer cas Ven re habe iu hcbesgbedys 3 00 
Pemeecemenaurcts tepals, 6tC.)% 2215 ).e8 PS . 2 Yaisy» Saud. Délh. .gendx I 50 
ME a BBS ay fede oo EE Niobe ko cara weeds oie, Semcrrney Sarispey ed oa Ps ake $24 99 
The yields on the test rows were as follows: 
Average of two sprayed rows, 461 lbs.=202.8 bu. per acre. 
Middle unsprayed row, 431 |lbs==189.6 bu. per acre. 
Gain due to spraying, 13.2 bu. per acre. 
In Ogdensburg, the market price of potatces at digging time was 
80 cents per bushel. At this price the increase would have a value 
of $10.56 per acre. After deducting the expense of spraying, $6.22 
per acre, there remains a net profit of $4.34 per acre. 
THE CHATEAUGAY EXPERIMENT. 
Conducted by Oliver Smith & Son, Chateaugay, N. Y. Seven 
acres were sprayed four times with a one-horse, four-row “ Iron 
Age” sprayer carrying one nozzle per row. The dates of spraying 
were July 16, August I, 22 and jSeptember 2. The bordeaux 
(6-6-50 formula) was prepared with water pumped by horse 
power from a well at one side of the field. In the first two spray- 
ings arsenite of soda, stock solution, was used with the bordeaux at 
the rate of two quarts to 50 gallons. There were two checks of 
three rows each, both in the variety Uncle Sam. These received 
two applications of paris green— July 17 and August 8. The 
sprayed rows outlived the unsprayed ones by nearty a month. 
Early blight, late blight and flea beetles were all factors in this 
experiment. The longer life of the sprayed rows was plainly due to 
their protection against these pests. No rot was found at digging 
time. 
