8386 REPORT OF THE DEPARTMENT OF ENTOMOLOGY OF THE 
All of the trees were well leaved out. The weather during the 
four weeks following the treatment was cool with quite frequent 
showers. There was an especially heavy shower June 21. 
The mixture, which was made after the following formula, 
was boiled for two hours in an iron kettle and applied hot. It 
will be observed that in this formula both the lime and sulphur 
are used in less quantities in proportion to the water than in 
the formula for the winter wash: 
Lime unslaked 22% SPR eee 25 pounds. 
Snlphurreround wis cs. cb. he ele te hae 14 pounds. 
NVA DEIE SS sere path, EN OR Cee ardttte ara eee 60 gallons. 
RESULTS. 
The effect upon the trees was at once apparent. The leaves 
began to shrivel almost immediately and in a few days were 
badly burned and ready to drop off. Nearly all the leaves were 
killed. When the orchard was visited August 7 new leaves had 
formed and the trees were in fairly good foliage. The fruit 
buds showed no evidence of injury, as the crop of fruit com- 
pared favorably with the checks. 
The scales were killed on every limb that had been thoroughly 
treated. The presence of the foliage naturally prevented very 
thorough treatment of the smaller branches and in a few cases 
live scales were found scattered about on the small branches 
that had escaped thorough treatment. 
EXPERIMENTS 1N WESTCHESTER COUNTY. 
This orchard is one of the largest in the county. The trees 
selected are Burbank plums and were badly encrusted with the 
scale. They averaged about eight years of age and until the 
scale became sufficiently abundant to cause injury, which was 
not until this season, were in excellent condition. 
FIRST SERIES. 
Two series of experiments were made in this orchard. The 
first included only four trees and was considered preliminary to 
the second. As will be observed the amount of lime was varied 

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