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TROPICAL, SUBTROPICAL AND ORNAMENTAL PLANT INSECTS 
A. C. Baker, in Charge 
Dr. Baker, after making a brief stop at the field laboratory at 
Whittier, Calif., for a conference with the members of the staff there, 
sailed from Los Angeles August 9 for Honolulu, to reorganize the field 
laboratory there, as was stated in the News Letter for July. 
Dr. Wm. H. Mitchell, jr., accompanied Dr. Baker to Honolulu, 
where he will be engaged in research work on the Mediterranean fruit 
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O. C. McBride was transferred from the Bureau of Entomology to 
the Plant Quarantine and Control Administration, effective August 15, 
and left Orlando, Fla., on August 25 en route for Honolulu, where he 
will be in charge of the work being organized there on the Mediterranean 
fruit fly. This work is to be carried on under the direction of the 
Bureau of Entomology, but paid for by funds provided by the Plant Quaran— 
tine and Control Administration. 
M. McPhail and C. B. Keck were also transferred to the Plant Quar- 
antine and Control Administration, as of August 1, and left Orlando, Fla., 
for Honolulu, to join the research workers on the Mediterranean fruit 
fly. En route they stopped at Whittier, Calif., to look over the equip— 
ment at the laboratory there. 
Ralph Marlowe, formerly connected with the research work at Or-— 
lando, will also join the staff at Honolulu; and expects to sail with 
Messrs. McBride, McPhail, and Keck early in September. 
s F. J. Spruijt, of the field laboratory at Babylon, L. I> siege 
was in Washington August 7, to confer with Bureau officials in regard to 
work of the project under his direction. 
Dr. C. A. Weigel spent August 26 to 29 in Babylon, L. I.) taking 
part in the inauguration of the heat and vapor treatments of narcissus 
and other bulbous stocks being conducted there. 
In response to requests from the citrus interests in southern 
California, E. A. McGregor was absent from his headquarters at Lindsay, 
Calif., from August 3 to August 25, inclusive. His chief purpose in 
visiting southern California was to study the aftereffect on scale con—- 
trol of the dusting of citrus groves with finely divided sulphurs. Cer-— 
tain positive conclusions were reached. In addition, scorings were made 
in 43 orange groves in 5 counties of Southern California with reference 
to occurrence of thrips and the red spider. 
