New York AGRICULTURAL EXPERIMENT STATION. 137 
and two nozzles per row in the last one. In the first three spray- 
ings paris green was applied with the bordeaux. 
Three rows 335 feet long were left unsprayed. Paris green was 
applied to these rows frequently so that bugs did not injure them. 
The items of expense were as follows: 
IME emo PCH, SUIDIALC “(eI 2c wig oles cleenia-y yisinjalee vie kb eo cman 's $7.70 
115 “TESS IRE ge ier 9 ite Se ug il 62) a See ne ere 1.45 
SA ECE OT COT « (lk 2OG ae Wa at hte e << 6 Dike Sue SAT a NTO ws 6G Bloke» .50 
Seti S SLCC Aer Ole cart Tee Malte oo eC hm Sica k a-6 wre wey, oe wo 1.88 
ie eetesiabon tOT Mair and, HOTSe:(@) 25C. sw. 5s. one cele orca ys se 2.63 
OLMIS Flic emer etch teat wid Ni ne Pie oir eee Sickie Own Th ke Oca wk hes 2.00 
“ETE 5 "ye te i gt aie RE La ar a $16.16 
The total cost of spraying was $4.04 per acre or $1.01 per acre 
for each application. 
The test rows were dug and weighed on September 29th, a 
Station representative assisting with the work. 
The yields were as follows: 
Second sprayed row on the north, 133 Ibs. marketable tubers. 
Second sprayed row on the south, 132 lbs. marketable tubers. 
Average of two sprayed rows, 13214 lbs. marketable tubers. 
Middle unsprayed row, 71 ibs. marketable tubers. 
Yield, sprayed, 107 bu. 35 lbs. marketable tubers per acre. 
Yield, unsprayed, 57 bu. 56 lbs. marketable tubers per acre. 
Gain, 49 bu. 39 lbs. marketable tubers per acre. 
Spraying increased the yield 85.7 per ct. There were but few 
rotten tubers. 
The yield of culls was 9 bu. 15 lbs. per acre for the sprayed and 
33 bu. 44 lbs. for the unsprayed, making a difference of 24 bu. 
29 Ibs. per acre in favor of the unsprayed. Owing to the pre- 
mature death of the plants on the unsprayed rows many tubers 
failed to attain marketable size. 
At 50 cents per bushel the market price of potatoes in Atlanta 
the day the test rows were dug, the value of the increase would be 
$24.82. Subtracting $4.04, the cost of spraying, we have left a 
net profit of $20.78 per acre. 
Field No. 2——This field also contained‘ four acres of the variety 
Sir Walter Raleigh planted several days later than Field No. 1. It 
was sprayed only three times — July 18, August 1 and 24. One 
nozzle per row was used in the first two sprayings and two nozzles 
