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CEREAL AND FORAGE INSECT INVESTIGATIONS 
W. H. Larrimer, Senior Entomologist, in Charge 
In October B. E. Hodgson, of the Arlington, Mass., field laboratory, with seven 
assistants, has been collecting the regular annual comparative data concerning the infesta— 
tion of the European corn borer in New England. 
B. E. Hodgson and D. W. Jones, also of the Arlington field laboratory, recently 
visited, at Yarmouth, Me., the Maine experimental project for studying the European corn 
borer. 
B. E. Hodgson and his assistants have recently made a survey in the region about New 
York Bay to determine the present intensity of infestation of the corn borer and to ascer— 
tain the number of generations in that area. 
Recently C. H. Batchelder, of the Arlington field laboratory, visited the Boyce— 
Thompson Institute, Yonkers, N. Y., in connection with his chemotropic and chemotactic in- 
vestigations, after which he and Milton Ryberg went to New Brunswick, N. J., and conferred 
with T. J. Headlee, State Entomologist of New Jersey. 
From October 6 to October 21 W. R. Walton, of the Washington office, was in Toledo, 
Ohio, at the headquarters of the. corn borer control organization, assisting in the prepara— 
tion of various reports upon the progress of the work. 
A shipment of 1,700 specimens of EXERISTES ROBORATOR Fab. has been sent from the 
Monroe, Mich., field laboratory to Guam, to aid in the fight there against an increasing 
infestation of the European corn borer. 
The third annual conference of the International European Corn Borer Organization was 
held September 21 to 235 in Ohio, Michigan, and Ontario, with a final meeting in Detroit. 
Among the participants from the Bureau of Entomology were D. J. Caffery, Philip Luginbill, 
D. WW. Jones, L.rH:. Patch, H, N.cBartley; sand sib ameco uu 
From October 6 to 14 D. J. Caffrey, L. H. Patch, P. A. Howell, N. Trade, and Fred 
Sleeth, of the corn borer investigations at Toledo and Sandusky, Ohio, A. B. Baird and 
other entomologists of the Canadian staff, and R. B. Gray, David Isler, Frank Irons, and 
Henry Clay, engineers, conducted field experiments with machinery for control of the corn 
borer in a badly infested cornfield near Amherstburg, Ontario. 
Delos L. Van Dine, jr., son of D. L. Van Dine, the well-known entomologist, was 
killed in an accident at Jaronu, Cuba, on October 20. Asa temporary appointee of the 
Bureau of Entomology he was rendering excellent service in collecting and forwarding from 
Cuba to Louisiana and Florida certain parasites of the sugar-cane moth borer. 
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