New YorK AGRICULTURAL EXPERIMENT STATION. 935 
THE STERLING STATION EXPERIMENT. 
Conducted by A. E. Curtis, Sterling Station, N. Y. One 
field ef 5 acres was sprayed 6 times; another of 4 acres, 5 
times; and a portion of a third field containing 15 acres, 5 
times. The sprayer was a 1l-horse, 4-row, home-made affair. 
A four-row check was left in each field. There were so few 
bugs that it was unnecessary to use any poison for them. 
No late blight appeared. In all three fields there were a few 
flea beetles. Field No. 3 suffered severely from tip burn, but 
in the other fields it was not serious. In Field No. 1 the un- 
sprayed rows were slightly injured by early blight. Here, 
there was some contrast between sprayed and unsprayed rows. 
In the other two fields there was little or no contrast. The 
following expense account covers only Fields 1 and 2 (9 acres) : 
Zoutpsacoppen sulphate (Oey a iip . walt. . 423 ets Ge oh ee te $16.14 
ema UP INITICE CLT CIN AMeU OE EW. fC igghi tc boas whites Dawn sw las. wcee 3.20 
1 yuk EW afot Bey ibe £2 Oc RB ae lige Dee ar aor ae A AR RAL 11.25 
75 hrs. labor for horse Ga LOGS Auret. Sra EELS Orie 7.50 
Dee Ee OLAV OF Mes eaN eee alate Aes uibiy taia vere ees. ae oie 10.00 
evan hae Meee aE Ee LAE, Taser d ay’ shige <Weubayere vada « wiskoreare-d $48 . 14 
The test rows showed the following yields: 
Field No. 1. Sprayed six times. Rows 957 x 3 ft. 
Two sprayed rows, 784 lbs==99.1 bu. per acre. 
Two unsprayed rows, 640 Ibs.=80.9 bu. per acre. 
Gain, 18.2 bu. per acre. 
Field No. 2. -Sprayed five times. Rows 818 x 3 ft. 
Two sprayed rows, 754 Ibs.:=111.5 bu. per acre. 
Two unsprayed rows, 600 lbs.==88.7 bu. per acre. 
Gain, 22.8 bu. per acre. 
Field No. 3.. Sprayed five times. Rows 1,243 x 3 ft. 
Two sprayed rows, 726 lbs= ‘0.7 bu. per acre. 
Two unsprayed rows, 518 lbs.==50.4 bu. per acre. 
Gain, 20.8 bu. per acre. 
In the three tests the average gain was 20.4 bu. per acre, 
worth, at 60c. per bu., $12.24. Assuming that the expense of 
5 sprayings in Field No. 3 was the same as for 5 sprayings 
in Field No. 2, the average expense of spraying was $5.18 per 
acre. Hence there was a net profit of $7.06 per acre. 
