100 
Keport of the Horticulturist of the 
scale, so as to embrace tlie crab tree, treated in preceding years with 
seven trees of the Fall Pippin variety. 
One-half of all the trees was sprayed with the solution, leaving the 
other half untreated. Different trees of the same variety vary so much 
in the amount of the fungus that infests them, that the method 
adopted in the experiments for the codling moth, that of spraying one 
tree and leaving the next unsprayed, as a check, is hardly available. 
The crab tree, which was of the Siberian variety, was sprayed five 
times, viz., on May seventh, sixteenth, twenty-fifth, thirtieth and June 
twenty-eighth. The first of these applications was at the rate of one 
pound of the hyposulphite to twenty gallons of water, the remainder 
at the rate of one pound to ten gallons. The tree was sprayed on the 
part not sprayed in previous years. 
The Fall Pippin trees were also sprayed five times, viz., on May 
eleventh, twenty-first, twenty-fifth, thirtieth and August twenty- 
second, the solution in every case being at the rate of one pound to 
ten gallons. 
On August twenty-fifth a quantity of fruit was picked from the 
sprayed and from the unsprayed part of the crab tree, and assorted 
into three qualities. In the first quality were put only fruits free 
from scab; in the second those slightly attacked, but not sufiiciently 
to injure their market value, and in the third those much injured. 
The results were as follows: 
No. of 
Per cent 
Per cent 
Per cent 
fruits 
in first 
in second 
in third 
examined. 
quality. 
duality. 
quality. 
Sprayed part 
662 
87.9 
11.2 
.9 
749 
71.8 
25.5 
2.7 
September fifth, a quantity of fruit was picked from the sprayed and 
unsprayed parts of the Fall Pippin trees and assorted into three 
qualities, as above noted, with the following result: 
^No. of 
Per cent 
Per cent 
Per cent 
fruits 
in first 
in second 
in third 
examined. 
quality. 
quality. 
quality. 
1,068 
59.1 
36.1 
4.8 
Unsprayed part 
1,120 
41.8 
46.6 
11.6 
It appears that in both the crab tree and the Fall Pippin tree, the 
percentage of fruits in the first quality was greater in the sprayed 
j)ortion, the difference amounting to about sixteen per cent in the 
former and about eighteen per cent in the latter. In the second and 
