New York AGRICULTURAL EXPERIMENT STATION. 147 
on sprayed or unsprayed rows. ‘The unsprayed rows were 
slightly injured by bugs. 
In another field of six acres two rows were sprayed about 
twice as much as the others, that is, 10 or 12 times, yet they 
blighted just as soon and there seemed to be no difference in 
yield. Mr. Driggs states that spraying seemed to have but lit- 
tle effect on blight at Elba the past season. Unsprayed fields 
generally appeared as good as sprayed ones. Market price of 
potatoes at digging time, 40 cents. 
EXPERIMENT NO. 5. 
Conducted by M. F. French, Gainesville, Wyoming County. 
One field of 64 acres, variety White Giant, and another of five 
acres, variety Sir Walter Raleigh. Both fields were sprayed 
five times with a two-horse, home-made outfit carrying an Em- 
pire King barrel spray pump and rigged to spray four rows at 
a time with one nozzle per row. A man did the pumping and 
a boy the driving. The total cost of spraying 1144 acres was 
$36.40, including labor, chemicals, paris green and wear on 
sprayer. 
In the 614-acre field, four rows 60 rods long, 34 inches apart, 
were left unsprayed. These four rows yielded 88 bushels, or at 
the rate of 146 bushels 52 pounds per acre, while four sprayed 
rows adjacent yielded 50 bushels, or 193 bushels 15 pounds per 
acre, making a difference of 46 bushels 23 pounds per acre in 
favor of spraying. 
In the 5-acre field, four rows 52 rods long were left unsprayed. 
They averaged 5 bushels per row or 89 bushels 36 pounds per acre, 
while four sprayed rows adjacent averaged eight bushels per row 
or 143 bushels 21 pounds per acre, making a difference of 5334 
bushels per acre in favor of spraying. 
Averaging the results in the two experiments there is a gain 
of 50 bushels 4 pounds per acre due to spraying. 
We had an opportunity to examine these experiments Sep- 
tember 1. In the 614-acre field the unsprayed rows were already 
half dead, while the sprayed rows were scarcely injured by blight. 
The sprayed plants outlived those unsprayed about two weeks. 
In the five-acre field, also, there was considerable difference - 
