236 REPORT OF THE BOTANICAL DEPARTMENT OF THE 
THE EAST SYRACUSE EXPERIMENT. 
Conducted by M. W. Garrett, East Syracuse, N. Y. Four 
acres of potatoes, variety Norcross, were sprayed five times. 
The dates of spraying were July 4, 11, 24 and 29 and Aug. 8. 
The sprayer was a one-horse, four-row “Iron Age” sprayer 
which carried one nozzle per row in the first two sprayings 
and two nozzles per row in the last three sprayings. The 
bordeaux used was of the 6-6-50 formula. Water had to be 
pumped by hand and hauled about 50 rods. In all five spray- 
ings arsenite of soda was used with the bordeaux at the rate 
of two quarts of the stock solution to 50 gallons. The check 
consisted of four rows. These were treated three times with 
paris green. Both kinds of blight and flea beetles were absent. 
The only trouble was a very severe attack of tip burn. For 
some unknown reason the unsprayed rows made a slightly 
larger growth and remained green a little longer than the 
sprayed rows. Such a condition of affairs has not been ob- 
served in any of our previous experiments. 
The expense account contained the following items: 
125 Ibs. copper sulphate’ @ Sac ure: aw ee ete re ee ee $6.88 
100“Ubselime (G) 402). ob cee dice amc ds ee eee ee . 50 
32 lbs. Sal soda" Lae Tie ee te ee cee et 48 
8 Ibs. white arsenic @:20c:4i. £40 basal). det ye eee ee 1.60 
30‘hrs, man Jabor, 156% oy. eal, son tes ane ieee nee 4.50 
15 hrs. horse labor @ 10c...... ES Gee te ee eee ehh 1.50 
Wear of sprayer. oe. 2. wi Coss. oo oe ee 5.00 
Totak?, 2.2. AF chavo. « Léa ho eee te. ee $20 .46 
The test rows (524.5 x 3 ft.) yielded as follows: 
Two sprayed rows, 488 lbs.=133.4 bu. per acre. 
Two unspraved rows, 578.5 Ibs.=112.6 bu. per acre. 
Loss, 20.8 bu. per acre. 
At 90 cents per bushel 20.8 bushels of potatoes have a 
market value of $18.72. To this must be added the expense 
of spraying, $5.12 per acre, which makes the total loss $23.84 
per acre. 
