New York AGRICULTURAL EXPERIMENT STATION. 301 
edd 
marketable fruit produced by the treated pear trees was much 
in excess of previous years. On all of the treated pear trees 
there was a fair crop, while that of the check trees was so badly 
infested as to be unsalable. Some idea of the difference between 
the fruit of the treated and untreated trees may be obtained 
by referring to Plate XL. The trees from which the fruit was 
taken were carefully selected as being infested to about the 
same degree at the time the treatment was made. They were 
two of the worst infested trees in the orchard. The infested 
pears shown in the upper row were selected as representing the 
condition of the fruit on that tree. With the exception of the 
smallest pear these fruits averaged among the best on the tree. 
Those in the lower row were from the treated tree and correctly 
represent the average of the fruit on this tree, of which there 
was a fair crop. Throughout the orchard the fruit of the treated 
trees showed but little evidence of the scale. Only an occasional 
one could be found that was marked and these were disfigured 
to only a very slight degree. 
Most of the peach trees were too young to produce much fruit, 
and hence there was little opportunity to test the effect of the 
wash upon the fruit buds. None of the peaches, however, 
showed any effect of the scale. 
Effect on the scale.— The effect on the scale has already been 
indicated. The results here were the same as in the other or- 
chards. The scales were promptly killed by the treatment and 
the young of those that escaped were evidently unable to find a 
place to settle down except on the new growth where an occa- 
sional live scale was found. The only trees upon which more 
than an occasional live scale could be found was on the western 
edge of the orchard which bordered on an orchard of very badly 
infested peach trees. The trees on the outside rows of the two 
orchards were so close together as to touch their branches. As 
a result the pear trees nearest to the infested peach trees were 
evidently infested from these trees, as young scales were found 
on them toward the middle of summer, and always in most 
abundance on the west side of the trees toward the peaches. A 
