670 REpPoRT OF THE HoRTICULTURIST OF THE 
spraying the portion of the orchard outside the experimental 
plot, and the injury from spraying was apparent here as else- 
where. Apple trees at the Station sprayed only with London 
purple, 1 pound to 180 gallons of water, to which lime was 
added for the purpose of preventing injury, showed considerable 
injury to the foliage of several varieties as a result of the spray. 
In other orchards injury to the foliage was also observed where 
the trees had been sprayed with the arsenites. These observa- 
tions showed that spraying with either London purple or Paris 
green alone caused injury, as did also spraying with Bordeaux 
mixture alone. 
Unsprayed trees at this period did not show the characteristic 
injuries described above, although some discolored spots could 
occasionally be found, evidently due to various causes, such as 
abrasions, insect punctures and other unknown sources of injury. 
The same difference between sprayed and unsprayed trees was 
noticed about the 1st of June in visiting other orchards in west- 
ern New York, including those of Messrs. Ellwanger & Barry, 
Rochester, N. Y. These gentlemen were disposed at first to 
attribute the trouble to spraying, but afterward decided, as 
stated in the letter published below, that the injury was due to 
the weather : 
Rocusster, N. Y., December 15, 1894. 
Dr. Peree Coiiier, Geneva, V. Y.: 
Dear Sir.— Replying to yours of the 13th inst., we thought 
last June that the russety appearance on our pears was due to 
injury from spraying, but on further investigation we discovered 
that the fruit which had not been sprayed at all was covered also 
with russet. 
We considered the matter at the time and came to the conclu- 
sion that the unusual russet color was due to the peculiar season. 
I noticed on my way to the Nurserymen’s Convention at 
Niagara Falls pear trees loaded with fruit having that russet and 
pink color, in various orchards between Rochester and Niagara 
Falls, where they could not have sprayed at all. 
The remark was so general about the peculiar color of pears 
this year that we hardly think that it can be attributed to spray- 
ing, at least this is our opinion. 
We used the Bordeaux mixture tested with the potassium fer- 
rocyanide test. 
Yours truly, 
ELLWANGER & BARRY. | 
