848 REPORT OF THE DEPARTMENT OF ENTOMOLOGY. 
7. All things taken into consideration, the lime-sulphur-salt 
wash promises to be a highly efficient wash for the treatment of 
trees infested with the San José scale under eastern conditions. 
It appears to be safe and reliable and is comparatively cheap. 
Should these indications be borne out by future experience a 
cheap and comparatively easy method of controlling the scale 
will be assured. In case, also, that it is found that the wash 
can be successfully made without delay and expense of boiling 
it will add materially to its practical value. It must not be 
expected, however, that the scale will be exterminated even by 
thorough treatment, but it may be held in check sufficiently to 
prevent important injury. 
ACKNOWLEDGMENTS. 
The spraying experiments recorded in this bulletin could not 
have been carried out under the favorable conditions which at- 
tended them if it were not for the hearty co-operation of the 
owners of the orchards in which the experiments were made, 
and others. Acknowledgments are especially due to Mr. F. A. 
Sirrine of the Station staff, Mr. H. E. Wells of Riverhead, Long 
Island; Mr. Edward Van Alystyne, Mr. Wm. Hotaling} Mr. 
Risedorph, Mr. Van Buren of Kinderhook, Messrs. White and 
Rice of Yorktown, Mr. Frank Stevenson of Geneva and Mr. F. G. 
Whitney of Youngstown. 
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