New York AGRICULTURAL EXPERIMENT STATION. 163 
all of the blight was late blight, Phytophthora infestans. The 
Messrs. Salisbury are enthusiastic advocates of spraying. 
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EXPERIMENT NO. 26.4? 
D. Lyon, of Phelps, engaged J. V. Salisbury & Sons to spray 
his ten-acre field of potatoes at $1.00 per acre for each application. 
The Messrs. Salisbury were to furnish everything and use their 
judgment as to the proper number of sprayings and the time of 
making them. Four sprayings were made, the last one gn August 
22. Therefore, the total expense of the spraying was $40. The 
spraying was done with the same outfit used in Experiments 
No. 24 and No. 25. There being very few bugs it was unnecessary 
to use any poison on either the sprayed or unsprayed plants. 
Three rows 715 feet long and of the variety Rural New Yorker 
No. 2, were left unsprayed. On August 22 late blight was already 
plentiful on the unsprayed rows and by September 7 there was a 
marked contrast between the sprayed and unsprayed rows clear 
across the field. - The foliage on the unsprayed rows was scant 
and of lighter green color than on the sprayed. On September 
19 the unsprayed rows were nearly but not quite dead throughout 
their entire length, while the sprayed rows on both sides of them 
were still in good condition. 
Asa consequence of so much difference in growth there was 
a marked difference in yield as follows: 
Middle unsprayed row, 326 lbs., or 110 bu. 18 lbs. per acre. 
Second sprayed row, 611 Ibs., or 206 bu. 43 Ibs. per acre. 
Gain from spraying, 285 ibs., or 96 bu. 25 Ibs. per acre. 
The total yield on the ten acres was 2200 bushels of marketable 
tubers or at the rate of 220 bushels per acre. Price of potatoes, 
40 cents. 
For the owner of the potatoes, the spraying was certainly very 
profitable. At a total expense of only $40 his crop was increased 
by 964 bushels worth $3885.60. 
EXPERIMENT NO. 27. 
Conducted by H. W. Hadlow, Geneva. A garden patch con- 
taining about one-fourth acre of potatoes, variety Rural New 
Yorker No. 2, was sprayed six times very thoroughly with a 
poe ee 
**Reported by J. V. Salisbury & Sons. 
