New YorK AGRICULTURAL EXPERIMENT STATION, Iq! 
As the bulk of the crop was sold within a short time after 
digging at an average price of about 70 cents per bushel, the actual 
net profit was about one-sixth greater than is shown by the figures 
given above. 
THE CORTLAND EXPERIMENT. 
This experiment was made by Geo. H. Hyde, Cortland, N. Y. 
It included six acres of potatoes in two fields. Three unsprayed 
rows were left in each field. The spraying was done with a 
“Watson” one-horse, four-row power sprayer like the one used 
in the Atlanta experiment. Both fields were sprayed five times, 
with one nozzle per row in the first three sprayings and two nozzles 
per row in the last two. The bordeaux used in the first three 
Sprayings contained five pounds of copper sulphate and six pounds 
of lime to each fifty gallons (5-6-50 formula) while that used in 
the last two sprayings was of the 6-6-50 formula. In both fields 
paris green was used with the bordeaux only in the first two spray- 
ings. The items of expense for spraying six acres five times were 
as follows: 
Eee et SUIDNAT ee MA UGl Alice oka enc Agel dew eh eb sak vel $18.00 
1 RLS TAREERSS (So jeep 2g ita Ss an an ge ee Une a 1.30 
Pee Eom ReCIr Mir s1OGme he nis ais G's ttt el Cele Buren 3.96 
DS et nyare Veet es (Tee ee GN Ete SS ne ne 3.75 
MSC LOG NOLS eS OU 1252 Cala Pawan te onan iota Vesyowinn visu eas 2.50 
OCT Cl sti Seance sig dig ho fica ob hee, yk oes Sse pew ad ese 9.45 
EOE 7 enh ue, 96 8 ag SA ape RN a $38.96 
The total cost of spraying was $6.50 per acre or $1.30 per acre for 
each application. 
It will be observed that the cost of spraying in this experiment is 
considerably higher than in the Atlanta experiment (page 137) in 
which the same kind of a sprayer was used and nearly the same 
acreage sprayed. This is chiefly owing to the larger quantity of 
copper sulphate used and the larger allowance for wear of sprayer. 
Field No. 1.—This field contained four acres of potatoes of the 
variety World’s Superior, planted May 15. The dates of spraying 
were July 7, 11, 27, August 9 and 21. Three rows 439 feet long 
were left unsprayed. Paris green was applied to these rows five 
times — three times with a powder gun and twice in the form of 
spray — the first two applications being made on July 7 and 11 the 
