AaSIie 
TROPICAL, SUBTROPICAL AND ORNAMENTAL PLANT INSECTS 
A. C. Baker, in Charge 
By invitation, E. A. McGregor addressed the Association of County 
Agricultural Commissioners at the annual meeting, held May 23 at Redding, 
Calif. The subject of the address was "Citrus pest control, with 
special reference to sulphur dusting." In connection with this trip into 
northern California, observations were made in citrus groves in the 
Oroville district. 
Dr. Baker left Washington on June 10 for Mexico City, to visit the 
laboratory there and to confer with the membersof the staff regarding 
the work under way on the Mexican fruit worm. 
W. E. Stone was transferred to this division, effective June 
16, joined Dr. Baker in Texas, and accompanied him to Mexico. He will 
have charge of the administrative work of the project of the Mexican 
fruit worm in Mexico. 
On June 19 and 20 E. A. McGregor, of the field laboratory at 
Lindsay, Calif., and Randall Latta, of Sumner, Wash., attended the 
annual meeting of the Pacific Slope Branch of the American Association 
of Economic Entomologists. 
F, J. Spruijt, in charge of the division's bulb-—insect labora-— 
tory at Babylon, N. Y., spent June 3 and 4 in Washington for consulta- 
tion with Bureau officials. 
James M. McGough has been appointed Junior Entomologist, to as-— 
Sist Paul A. Berry in Cuba in work on the parasites of the citrus black 
TY. 
In June A. J. Haas was appointed temporary Field Assistant, to 
assist in experiments relating to the studies on oil spray being con- 
ducted at the field laboratory at New Orleans. 
Dr. S. A. Watson, of Whittier College, L. C.. Fife, of theme 
State Agricultural College, R. P. Buckner, of Whittier College, and J. 
W. Mehl, of the California Institute of Technology, have been appointed 
temporary Field Assistants at the field laboratory at Whittier, Calif., 
where they will assist in the study of the resistance to hydrocyanic— 
acid gas of certain scale insects affecting citrus. 
C. H. Huff, of Ohio State University, has been given temporary 
appointment as Field Assistant, to help with the experimental work that 
is being done on bulb insects at Babylon, N. Y. 
T. R. Hansberry, P. M. Scheffer, and Dudley Young have been tem- 
porarily appointed Field Assistants at Sumner, Wash., to help in field 
experiments and studies on fumigation that are being conducted in the 
Northwest on bulb flies. 
