New YorK AGRICULTURAL EXPERIMENT STATION. 159 
Average of two.sprayed rows, 28834 Ibs. marketable tubers. 
Middle unsprayed row, 241 lbs. marketable tubers. 
Yield, sprayed, 200 bu. 47 lbs. marketable tubers per acre. 
Yield, unsprayed, 167 bu. 35 lbs. marketable tubers per acre. 
Gain, 33 bu. 12 lbs. marketable tubers per acre. 
_ The yield of culls was at the rate of 18 bu. 57 lbs. per acre for 
the sprayed and 18 bu. 5 lbs. for the unsprayed. In this test the 
unsprayed as well as the sprayed rows were free from rot. Most 
of the gain on the sprayed rows was due to protection against flea 
beetles and early blight. 
Combining the results obtained in the two tests we have an 
average gain of 54 bu. 9 lbs. marketable tubers per acre, worth 
at the time of digging, $32.49. After subtracting the cost of spray- 
ing, $5.55 there remains a net profit of $26.94 per acre. 
THE BRIDGEHAMPTON EXPERIMENT. 
E. E. Halsey, Bridgehampton, Long Island, conducted this ex- 
periment. Eighteen acres of potatoes, mostly of the variety Car- 
man No. 1, were sprayed eight times between June 13 and August 
8. Two strips of four unsprayed rows each were left for checks. 
The spraying was done with an E. C. Brown, two-horse, five-row, 
power sprayer carrying one nozzle per row. 
The bordeaux was of the usual 6-4-50 formula applied at the 
average rate of about 55 gallons per acre for each application. 
Arsenite of soda (prepared by boiling together one pound of white 
arsenite and four pounds of sal soda in one gallon of water) was 
used with the bordeaux in every spraying. On the unsprayed rows 
paris green was applied twice (June 24 and July 8) by means of a 
powder gun. 
The items of expense for spraying 18 acres 8 times were as 
follows: 
Pm DCT Stl plate: CG) GlSCe% 1 sain ceed one bibs ois Saphdedeeces $58.50 
ee EERSR GL Ut Par Ae! Peas Tiida ion Gad wide sae Rigs has Wes 7.25 
Mee eee ESO TIC (VLG C ov oc uestitvs Fe shoe WG Saw oon an Lune & baie ob oa 5.10 
Bre SOC EC) TU C2 oo oe 6-8 « aysts dais di ss 6, 0,4 0a sae ee os bee vee 2.25 
OS SL Siro dd a0 oe Vala CODEN SCO a pa ee ere Ae - 12.00 
EE Cite fedih: (IS 7.60 cc as 2 Sey eee oe Caleb eel ale cee 28.00 
See SDL AVCTE ey kes ier aie Se ewe y 4 Pk Rac oe elas da beac o 10.00 
TELLS: he Ge oo) 6 0 Vs ae ea ae ne $123.10 
