218 Report oF THE DEPARTMENT OF ENTOMOLOGY OF THE 
On August 2, there was very little difference in the appearance 
of the trees in the different lots. In comparison with the checks 
the sprayed trees as a rule had fewer leaves upon the lower 
branches, but on account of the superior rew growth of the latter 
the amount of foliage was approximately the same for both. The 
relative proportions in the fruit yields did not show any apparent 
variations from former observations. 
ORCHARD II. 
On trees—On May 5, there were marked differences in the 
appearances of the trees owing to the effects of the winter upon 
those that were much infested with the scale. Such trees were 
usually dead or had a scanty crop of blossoms and leaves and 
much dead wood. Trees free from scale or only slightly infested 
were as a rule entirely healthy and had a large percentage of live 
fruit and leaf buds. On May 12, nearly all of the trees were in 
full blossom. An examination of the plums, slightly or not at all 
infested with the scale, principally of the varieties Reine Claude, 
Abundance, Field and Red June to determine the conditions of 
the trees gave the following figures: 
TapLE V.—Errecr or Fatu SpraAYING witH SULPHUR WASHES ON 
Reine CLaupE, ABUNDANCE, FIELD AND Rep JUNE PLUMS. 
(OrcHaArD IT.) 
No. of | Conditions of sprayed trees compared with 
TREATMENT. trees. checks. 
Formuta I. 
Boiled lime-sulphur-salt wash. 38 Trees have 75 to 80 per et. of a crop of 
blossoms and foliage equal to checks. In- 
juries more apparent on lowest branches. 
Formuta II. 
Self-boiled lime-sulphur-salt wash. 36 Trees have 75 to 80 per ct. of a crop of 
blossoms and foliage equal to checks. In- 
juries more apparent on lowest branches. 
Formuta III. 
Lime-sulphur wash. 28 Trees have from 80 to 90 per ct. of a crop 
of blossoms and foliage equal to checks. 
Losses principally upon lowest branches. 
Formuta IV. 
Self-boiled lime-sulphur-caustice soda 72 Trees have from 50 to 65 per ct. of a crop 
wash. of blossoms and foliage equal to checks. 
Injuries more apparent upon _ lowest 
branches. ke 
FormMutLa V. 
Boiled lime-sulphur-caustie soda 64 Trees have from 65 to 80 per ct. of a crop 
wash. of blossoms and foliage equal to checks. 
el 
