New York AGRICULTURAL EXPERIMENT STATION. 339 
mixture or with one of the sulphur washes to determine their com- 
parative merits for the control of the scale which was quite abund- 
ant in the orchard. The 25 per ct. oil mixture was used on twenty- 
four trees, and after the falling of the blossoms twelve of these 
were given the second and third treatments with the bordeaux-. 
arsenical mixture. The remainder of the orchard was sprayed 
with several sulphur washes during the dormant season and after 
the falling of the blossoms the usual applications of the bordeaux 
mixture, containing an arsenical poison, were made to a number 
of these trees. 
Results.—With the opening of the buds no apparent injuries 
were noticeable on any of the trees. On Oct. 12 the apples were 
picked. The yields from the trees treated with the kerosene-lime 
wash showed an average infestation by the scale of 98.2 per ct. 
while the fruit from the trees sprayed with the lime-sulphur wash 
had an average infestation of 9.8 per ct. The checks were com- 
pletely infested. The fruit from the section treated with the oil 
spray, without the bordeaux-arsenical mixture, were 19.8 per ct. 
scabby as compared with 1.3 per ct. of scabby apples taken from 
_the trees receiving treatment with the oil and the bordeaux mix- 
ture. The fruit from the trees sprayed with sulphur wash only, 
were 4.7 per ct. scabby, while those from the trees receiving ap- 
plications of the sulphur wash and the bordeaux mixture had an 
average of 3.2 per ct. of scab. The checks had 28.5 per ct. of 
scabby fruit. 
Trees treated with the oil spray only, had 21.1 per ct. of the 
fruit injured by larvee of the codling moth, while those sprayed 
with the bordeaux-arsenical mixture in addition showed two per 
et. injury by this insect. The fruit from the trees treated with 
sulphur wash only was 56.6 per ct. wormy as compared with an 
average of 17.7 per ct. wormy fruit from the trees receiving one 
application of the sulphur wash, supplemented by the second and 
third treatments with the bordeaux mixture. The checks had 30.7 
per ct. of wormy fruit. 
Orchard VIII: Apples——In Youngstown, Niagara County, a 
portion of a thrifty bearing orchard of 400 trees received applica- 
tions of the 25 per ct..kerosene-lime mixture. At the time of spray- 
ing scale was abundant on the trees. 
Results: Hydrated lime, 25 per ct. oil.—Of 69 trees receiving 
applications of this wash 15 showed on May 20 severe injuries to 
. 
