3838 Report oF THE DEPARTMENT OF EINTOMOLOGY OF THE 
SPRING TREATMENT. 

Orchard 1V: Plums.—Just before the buds opened a block of 
plums equal in number and similar in variety to those selected 
for treatment during the previous fall received an application of 
the 10 per ct. and 25 per ct. mixtures containing hydrated lime. 
The trees were slightly infested with scale. 
Results.—When the buds opened these trees had more foliage 
and blossoms than the fall-sprayed portion, but a greater varia- 
bility in the condition of the different varieties was quite notice- 
able. Burbank plums which had abundant foliage and blossoms 
soon turned brown and in a few weeks were dead. Other trees of 
the same variety had no blossoms but heavy foliage, and re- 
mained healthy throughout the summer. Reine Claude plums 
and cherries showed a greater variation. All the trees blossomed, 
some very slightly, but the amount of fruit in each case was not 
large. Small fruits, such as currants and raspberries, planted 
between the trees were either killed or so badly injured by the 
spray that they produced no fruit. 
Orchard V: Apples.—In this orchard five large apple trees 
which were in a neglected condition as regards scale were treated 
with the 20 per ct. and 40 per ct. mixtures. . 
Results: Limoid mixture, 20 per ct., 40 per ct. oil—During the 
summer following, the treated trees were not in as healthy con- 
dition as the checks, as the foliage was less abundant and off 
color. At the last examination the trees receiving the applica- 
tion of the 20 per ct. oil were as badly scale-infested as the checks. 
The 40 per ct. oil was more effective on the scale and in addition 
seemed to aid in clearing the bark of lichens and moss. 
Orchard VI: Peaches.—At Laurel, in Suffolk Co., 45 scale- 
incrusted peaches were sprayed with the 10 per ct,. 20 per ct. and 
40 per ct. mixtures. 
Results: Limoid mi«cture, 10 per ct., 20 per ct. 40 per ct. oil._— 
The weaker percentages did not appreciably lessen the number of 
mature female scales, while the 40 per ct. mixture proved to be 
somewhat more destructive. On Oct. 23 larve and mature scales 
were abundant on sprayed and unsprayed trees. 
Effect on curl.—Peach leaf curl was very abundant on the 
treated as well as on the untreated trees. 
Orchard VII: Apples.—In a well cultivated. orchard near 
Geneva, 130 trees were sprayed with either the kerosene-lime 
