New YORK AGRICULTURAL EXPERIMENT STATION. 259 
(August 3-5) poison was used with the bordeaux and the check 
rows also were poisoned on August 5. Late blight and rot were 
the enemies fought in this experiment. Late blight appeared about 
August 20 and attacking the unsprayed rows more severely than the 
sprayed ones caused them to die about two weeks earlier. 
The expense account included the following items: 
MUMILISEECOPNGI) Stu plate (Cis, Gas « Ws ietilalss ely siutnloe es lalobels ale Sctat $12 24 
RIS MNLI MRC TUR TC eee eee ara a)... oer ett tty min'p5anlnsusd ein & hae I 39 
STN IMD AICS ch, een. fee iat Gone E202 ee RES 28 
CRIA TSENG (ds OO wart. ours «'s 4grws ous Seer w uP bs 00. ob held sled ols 56 
eT TE OTOCTY (0 32000 as whiny Foals ofa s ak psa ae Ass ob grat 4 48 
PNM ROME OL (AN MED TSC lesen he aac sleeiee oe 0k du win 6 8 ois tien marcos 6 00 
een AOL OF? NOTSCr(@) TOC RE Se sn Sac aelee cvs cues Petks oes 3 80 
See OT SDIAVCLR. Nahul ee. ee tee Stet Veet eat ele Sete eee ss II 30 
ae PEE Nh PAPE Sort arg cat neidikeena Pili « Aveutesle ey dak are actetdle $40 05 
The test rows (variety, Green Mountain) yielded as follows: 
Average of two sprayed rows, 537 lbs.==164 bu. per acre. 
Middle unsprayed row, 370 lbs.—113 bu. per acre. 
Increase in vield due to spraying, 51 bu. per acre. 
Although the weights taken show 34.5 bu. of rotten tubers per 
acre on the sprayed rows as against only 33.6 bu. on the unsprayed 
row, there can be no doubt that spraying lessened the loss from rot. 
On the unsprayed rows there were large numbers of tubers which 
were so much decayed that they could not be gathered for weighing, 
while on the sprayed rows there were only a few such tubers. 
At 70 cents per bushel, the market price at digging time, 51 
bushels of potatoes are worth $35.70. After subtracting the ex- | 
pense of spraying, $4 per acre, there remains a net profit of $31.70 
per acre. 
THE DENMARK EXPERIMENT. 
Conducted by H. E. Cook, Denmark, Lewis County, N. Y. Six 
acres were sprayed 5 times with a two-horse, four-row “Aroostook ” 
sprayer carrying two nozzles per row. ‘The dates of spraying were 
July 20, August 16, 20, 27 and September 4. The bordeaux used 
was of the 5—5—50 formula with 1™% pounds of paris green added in 
the first spraying. The checks consisted of two three-row strips 
500 feet long the rows being three feet apart. The check rows. 
were treated with paris green twice — July 20 and 25. 
