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CIRCULAR No. 58. 
United States Department of Agriculture, 
BUREAU OF ENTOMOLOGY, 
L. O. HOWARD, Entomologist. 
REPORT ON THE GYPSY MOTH AND THE BROWN-TAIL MOTH, 
JULY, 1904. 
By C. lL. MARLATT, 
In charge of Experimental Field Work. 
The renewal, in the summer of 1904, of excessive damage by the 
gypsy moth in the woodlands about Boston, and more or less in the 
residential districts, was brought to the attention of the Secretary of 
Agriculture primarily by Congressman Ernest W. Roberts, of Chel- 
sea (Boston), and about the same time, also, by the secretary of the 
Massachusetts State board of agriculture, Mr. J. Lewis Ellsworth, 
in a letter addressed to the Entomologist of the Department. In com- 
pliance with the request of Mr. Roberts, the Secretary of Agricul- 
ture authorized a thorough investigation of the present status of the 
gypsy moth in Massachusetts, and, at the same time, of the brown- 
tail moth. Acting under instructions from the Entomologist, Dr. 
L. O. Howard, the writer spent some three weeks (July 1-22) in 
going over the infested districts about Boston, and visiting certain 
localities in adjoining States. The conditions found, relative to the 
two pests named, are summarized below. 
THE GYPSY MOTH. 
(Porthetria dispar Linn.) 
The work of the gypsy moth committee terminated in January, 
1900. The condition of the infested district about Boston at that 
time, as shown by the reports of the committee, and by careful exam- 
inations made by the Entomologist, Doctor Howard, and also, a little 
prior to the termination of the work, by the writer, was most satis- 
factory, from the standpoint of control, at least. In other words, 
