348 REPORT OF THE DEPARTMENT OF ENTOMOLOGY OF THE 
SOCALECIDE. 
H. E. Hope@Kiss. 
The soluble oil preparations are comparatively new sprays 
which during the past year have been widely advertised for the 
treatment of the San Jose scale. There are now several brands 
on the market, to each of which a proprietary name has beén 
given. As opportunity has permitted, rather extensive tests have 
been made with these preparations to determine their merits 
as compared with standard remedies. As the work with it has 
been longer continued, the following notes on the results with 
Scalecide, one of the first of the brands to be introduced, are 
given to indicate the probable value of the miscible oils for 
orchard treatment. Applications of Scalecide were made during 
the dormant season and were continued at irregular intervals 
throughout the summer and fall. The work being in progress 
at the present time, the results from: the fall treatment cannot be 
obtained. 
CONDITIONS OF TESTING. 
On April 26 when the buds were swelling, a block of 20 apples, 
5 pears, 1 peach and 1 quince was sprayed with various percent- 
ages of the oil. Apples and peaches were badly scale-infested 
while the other kinds of fruit had only a few traces of scale. 
PREPARATION OF THE MIXTURES.. 
Percentage of oil, 3 per ct.: Scalecide, %4 gal.; water, 25 gals. 
‘“ é< 5 per ct.: é< 1 ‘“ 6 90. CO“ 
‘“ 6“ TY, per ct.: é< 1% « rT: 90 CO“ 
66 “ 40 per ct.: é< 9 7; rT: 20. «CO 
‘ «1h aaperct.- saa 8. 72a 
The oil and water were stirred vigorously, after which the mix- 
ture was pumped back into itself until the Scalecide which first 
appeared on the surface was completely mixed with the water. 
