New York AGRICULTURAL EXPERIMENT STATION. 75 
(June 12, 25, July 10, 25 and August 6). Paris green was used 
with the bordeaux in the first three sprayings. 
Series III.— This series, also, consisted of five rows, Nos. 3, 6, 
9g, 12 and 15. No bordeaux was used on these rows, but they 
were treated with paris green in lime water twice, June 26 and 
July 12. 
It will be observed that on Series I and II paris green was 
applied three times; while on the check rows, Series III, it was 
used but twice. From this it would appear that the sprayed 
rows had an unfair advantage, but such was not the case. The 
use of poison on Series I and II in the first spraying was entirely 
unnecessary. There were no bugs in sight at this time but they 
_ were expected to appear in a few days and it was thought best 
to be ready for them. However, it was two weeks before they 
became numerous enough to require treatment. Whenever paris 
ereen was used in this experiment it was applied at the rate 
of one pound per acre. 
RESULTS OF THE TEN YEAR.EXPERIMENTS IN 1906. 
AS SHOWN BY THE CONDITION OF THE FOLIAGE. 
At Geneva.— Up to August 6 there was no difference between 
the sprayed and unsprayed rows. At this time the plants were 
looking well. They were freely touching between the rows, but 
not yet covering the ground completely. There had been no 
injury from “bugs” and there was no early blight, Alternaria 
solam. Only a little injury from flea beetles was evident and 
there was only a trace of late blight, Phytophthora infestans. 
Some leaves with brown margins were to be found on all of 
the rows. | , 
By September 6 there was considerable contrast between sprayed 
and unsprayed rows. There was also a noticeable difference be- 
tween Series I and II, the latter showing fewer brown leaves. 
About September 15 the rows of Series III were dead while the 
rows of both sprayed series were still partly green. The contrast 
was greater now than at any other time during the season, but much 
-less than in any of the previous four seasons during which the 
experiment has been in progress. 
Late blight, Phytophthora infestans, first appeared in the experi- 
ment field August 4. Soon after this the weather conditions be- 
came unfavorable to its spread and it did not do much damage. 
The most serious disease was one which caused the leaves to 
