New York AGRICULTURAL EXPERIMENT STATION. 173 
Experiment No. 41.—The unsprayed rows died two weeks earlier 
than the sprayed ones. 
Experiment No. 42.—The potatoes were sprayed twice with bor- 
deaux and paris green and treated once besides with paris green 
in water. Mr. Graeff states that three applications of paris green 
for bugs would have been required anyway so that the extra ex- 
pense of spraying for blight was only the cost of materials. “ There 
was no noticeable difference as to rot between the sprayed and 
unsprayed.” 
Experiment No. 43.—The sprayed rows were killed by frost 
about a week after the unsprayed rows died from blight. 
Experiment No. 44——The unsprayed rows were not affected by 
blight. 
Experiment No. 45.—The gain due to spraying is based on the 
difference in yield between an unsprayed row and a sprayed one 
fifteen feet distant. Mr. Buchanan estimates that where he sprayed 
at least one-fifth of the crop rotted and on unsprayed rows the 
loss was still greater. 
Experiment No. 46.—Very little blight and no rot in this experi- 
ment. 
Experiment No. 47.—The sprayed rows lived two weeks longer 
than the unsprayed ones. ‘The total yield of 11 acres was 2,247 
bushels which is at the rate of 204 bushels per acre. 
Experiment No. 48—In this experiment the expense of spray- 
ing includes the cost of water which was purchased at three cents 
per barrel. The spraying consisted of three-single applications and 
one double one or five in all. 
aperiment No. 49.—A portion of the field was sprayed only 
five times. Spraying lessened the amount of rot. 
Experiment No. 50.—The items of expense for spraying 12 acres 
ten times were as follows: 
CP CODDEEESUIDDAtE (2). OC... 25.25 bjctha Sides. ob os a i ceris's cue ecine $37.50 
ICE BO 117 5k aes en Ge. Mes Cee ste 5 Se tena wv 5.25 
AUC Graf twOMNenN .)'20Ce «susie ke eo eee ee lode se 19.60 
CA AGO esi le HOTSe.(Q)ILOCY aps a eid see sis sive 3 deen vide neo 2.40 
SE DC mC tCatin UD -20Cs ici le Vabaies® PAGER Sos alee) bhack 5.00 
TD es eH lg 20 0 G Daa (05 92 oa eg a a 7.50 
ERD e LCN DET 71408 fae ih ee aces skies alos dhe eulae 4.73 
DOE OMESDLAV Cr Ni eee ew. ee ein. oon Th hh aa hee i: 15.00 
SCATTER)! ee 4 Te AO Te. A oe $07.07 
