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| *& SEP 295 % 
MONTHLY LETTER OF THE BUREAU OF ENTBMOLOGY : 
| UNITED STATES DEPARTMENT OF AGRI@@ret+Gk. 
,! fiber 135 July, 1925 

SUMMER FIELD MEETING ON THE NORTHEASTERN BRANCH OF 
THE AMERICAN ASSOCIATION OF ECONOMIC ENTOMOLOGISTS 
The Northeastern Branch of the American Association of Economic 
Entomologists held its sixth annual field meeting in Washington, D. C., 
Maryland, and northern Virginia, on July 29, 30, and 31. General 
arrangements for these meetings. were, made by Chairman C. H. Hadley, 
and special local arrangements were under the direct charge of Secretary 
E. N. Cory, of the University of Maryland. The Committee on local 
arrangements were E. R. Sasscer, J..E. Graf, W. H. White, William 
Middleton, S. A. Rohwer,.and. J. A. Hyslop. The official headquarters 
for the first two days of the meeting were at the Hotel Harrington, 
in Washington. Headquarters for the last Gay were at the Hotel Francis 
Scott Key, Frederick, Md. 
The party left in 21 automobiles from .the Hotel Harrington at 8 A.M.., 
Wednesday. morning, July 29, making the first stop at the Arlington Experi- 
ment Farm. Among the more important features pointed out by Director But- 
terfield was the interesting display of plants subjected to’ varying 
lengths of day, being part of the interesting work on daylight and plant 
growth, and some golf-green turf experiments, all being carried on by 
the Bureau of Plant Industry. An interesting feature was the removal 
of earthworms from golf putting greens by the application of a solution - 
of mercuric chloride. The last important feature viewed there was the — 
oval track for testing road structure and materials by the Bureau of 
Public Roads, where the Bided lumbering. truck was making its eS ee 
round. 
At Falls Church, Va., a call was made at the laboratory of the 
Office of Forest Insect Investigations, where a very interesting lecture . 
was given by Dr. N. ‘A. Cobb, of the Bureau of Plant Industry, on 
nematodes as a control for grasshoppers. It.was well illustrated, 
especially by an exhibit of nematodes, including both living and Slide 
material. The next stop was made at Vienna, Va., where the remainder of 
the morning was spent observing the work of the Federal Ingecticide 
Board carried on there under the supervision of W. S. Abbott. 
The party returned to Washington at about 1 o'clock, had a shore 
dinner at the fish wharves, and took the steamer Charles Macalester for 
a trip to Mount Vernon, returning in time for an informal dinner at the 
Hotel Harrington: | 
