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MONTHLY LETTER OF THE BUREAU OF ENTOMOLOGY 
UNITED STATES DEPARTMENT OF AGRICULTURE 

Number 106 February, 1923. 
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SOUTHERN FIELD CROP INSECT INVESTIGATIONS 

J. L. Webb, Entomologist Acting in Charge 
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Dr. W. D. Hunter and B. R. Coad attended the meeting of the 
Southern Agricultural Workers, held in Memphis, Tenn., from February 
6 to 8. Mr. Coad delivered an address on boll weevil control. 
The following resolution was adopted at this meeting: 
"Whereas, the Cotton Belt is indebted to the United States 
Department of Agriculture through its representative, Mr. B. R. 
Coad, in charge of boll weevil investigation, for an effective 
method of boll weevil control and for the discovery of important 
entomological facts concerning the insect pests affecting cotton; 
"Be it resolved, that this Association expresses its high 
appreciation of Mr. Coad as a scientist and recognizes his in- 
valuable contributions to the cotton industry of the South.” 
Dr. Hunter also attended the meeting of the National Boll 
Weevil Conference held under the auspices of the American 
Cotton Association at Atlanta, Ga., February 20, and delivered an 
address on boll weevil control. Both Dr. Hunter and Mr. Coad were 
in Washington for several days following the Atlanta meeting. 
W. E. Haley has been starting experiments in southern Louisiana 
with the new hot-water treatment of sugar cane. It has been found 
that soaking the cane in water heated to a certain degree destroys 
borers in the cane and at the same time hastens the germination of 
the stalks when planted. 
J. W. Ingram, who has been in the sirup-producing section of 
southern Georgia for the winter, recently made a trip through Florida 
for observations on sugar-cane insects. He will soon go to Crowley, 
La., to start work on rice insects. 
T. E. Holloway has just returned from a six weeks trip to the 
west coast of Mexico, including Lower California. Dr. W. M. Mann of 
the bureau, H. C. Millender of the Federal Horticultural Board, and 
M. Alcazar, delegated by the Mexican entomological service, made the 
trip at the same time and are now in Southern Mexico. A visit was made 
to Los Mochis, where R. H. Van Zwaluwenburg, entomologist of the United 
Sugar Companies and a former employee of the bureau, is testing various 
control measures against the sugar-cane moth borer. 

