bay ps 
TROPICAL AND SUBTROPICAL PLANT INSECT INVESTIGATIONS 
A. C, Baker, Senior Entomologist, in Charge 
Dr. C. A. Weigel returned late in March from a month's trip to 
the Pacific Coast, in the course of which he conferred with Dr. F. R. 
Cole, of Santa Cruz, Calif., and C. F. Doucette, of Puyallup, Wash., in 
regard to the work of the field laboratories at those places on bulb flies 
and other pests of narcissus and other flowering bulbs. 
While on the Pacific Coast Dr. Weigel attended the fifth annual 
convention of the Northwest Florists' Association, held March,4, 5 and 6 
at Vancouver, B. C., and gave an address on "Insect pests of florists’ 
stock grown under glass." He also discussed the subject of "Bulb insects 
and their control" before the Bulb Growers' section of this association, 
at a meeting held in conjunction with the parent organization. 
Dr. Weigel met informally groups of narcissus growers at Portland, 
Oreg., March 12, and Los Angeles, Calif., March 21, and at each meeting 
problems relating to narcissus-bulb insects were discussed. 
E. A. McGregor, in charge of the citrus thrips field laboratory 
at Lindsay, Calif., has addressed Farm Bureau meetings at various places 
in California, including Orange Cove January 13, Ivanhoe March 13, and 
Sanger March 14. Such meetings, addressed by Mr. McGregor, are usually 
well attended and followed by considerable discussion. Mr. McGregor 
reports that, because of their sufferings from thrips in 1927, California 
citrus growers are turning more and more to remedial measures. A mime— 
Ographed progress report by Mr. McGregor seems to have crystallized a 
desire by. growers to have the facts presented to them.orally. As a re= 
sult, the annual spray program in California is being modified. 
Dr. Adolph Dampf, of the Mexico Department of Agriculture, has been 
appointed collaborator and will assist in the research work on the Mexican 
fruit worm. His headquarters will be in Mexico City. A temporary lab— 
oratory has been constructed at Cuernavaca, Mexico, where certain field 
work will be conducted. 
Die A.C. Baker has spent the entire month of March in Mexico, 
organizing the research work on the Mexican fruit worm. Until a suitable 
specialist can be selected, Dr. C. I. Bliss will have charge of this work, 
as well as of the work which is being conducted in the field laboratory 
at New Orleans. 
