4 
SOUTHERN FIELD CROP INSECT INVESTIGATIONS. 
W. D. Hunter, In Charge. 
G. A. Runner spent several days during the month in the laboratories of the General Electric 
Co., Schenectady, N. Y., conducting experiments in the destruction of the cigarette beetle 
(Chalcodermus xneus). 
August Busck will leave Washington about the first of May to spend six months in the 
Hawaiian Islands in the study of the Gelechia gossypiella. Special conditions regarding the 
habits of this species are required in connection with the proposed action to prevent the estab- 
lishment of the species in the United States. 
KE. A. McGregor returned,to. his station-at,.Batesburg, 5. C., early in the month. 
W. D. Hunter and G; B. Sudworth > wf the Horticultural Board, had a conference at Pitts- 
burgh, Pa., on April 14 with the designers of a machine which may be adapted for the fumigation 
of bales of cotton. EL askt Lbs oie 
On April 20 a conference: was held at the department regarding the proposed action of the 
Horticultural Board requiring the fumigation of all foreign cotton received in this country to 
destroy the immature stages of Gelechia gossypiella: Representatives of cotton mills from all 
parts of the country were present: .... : 
J. L. Webb left Washington on April 25 for Tallulah, La., where he will be attached to the 
boll-weevil laboratory. 
Messrs. R. W. Wells, M. J. Stanley, and G. H. Cowan have been appointed temporary field 
assistants in the work against the spotted-fever tick in Montana. ; 
A new project relating to the control of the house fly and other insects in establishments 
operating under the meat inspection act has been approved by the Secretary. This is a joint:- 
investigation in cooperation with the Bureau of Animal Industry, which will pay the traveling . 
expenses involved. The headquarters for the work will be at the Dallas laboratory and F. C: — 
Bishopp will be in direct charge. A conference will be held at Washington early in May at . 
which the detailed plans for the investigation will be discussed. 
TRUCK CROP AND STORED PRODUCT INSECT INVESTIGATIONS. 
F. H. CuirrenpeEn, In Charge. 
In regard to the first appearance of the pea aphis (Macrosiphum pisi Kalt.) and the food 
plants on which it occurs, Mr. D. E. Fink, under date of April 15, 1915, writes that while investi- 
gating the spinach aphis (Myzus persice) at Portsmouth, Va., he found that about 75 per cent 
of the aphides on spinach there were Macrosiphum pisi, and sent quite a lot, both mature and 
immature. This species was very abundant. About a month earlier Mr. Thomas H. Jones 
found this species in the vicinity of Baton Rouge, La., in all stages on Canada field pea. Finding 
the species on spinach in such numbers was somewhat of a surprise, but the writer had recently 
made the statement that in different localities the species might make its first appearance on 
other food plants than some which already have been recorded. 
WASHINGTON ; GOVERNMENT PRINTING OFFICB ; 1915 
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