iS tae 
TRUCK-CROP INSECT INVESTIGATIONS 
J. E. Graf, Entomologist, in Charge 
R. E. Campbell, Associate Entomologist, in charge of the Alhambra, 
Calif., laboratory, and also Secretary . of the Pacific Slope Branch of the 
American Association of Economic Entomologists, attended the meetings of the 
Association at Mills College, Oakland, Calif., June 16,t0 19, 1926. 
C. H. Popence, Associate Entomologist, of the. Washington office, 
visited Baltimore, Md., early in June, to investigate en oowsbreal of the 
Rise croym borer (Bembecia marginata). 
In June 5S. E. Dlendensé Agent, located at Saticoy, Calif., visited 
BerkeLsy, San Jose, Santa Cruz, and King City, Calif., to ascertain the 
distribution and host plants of the lima bean pod borer. 
MewaAs Vappula, ons the Agricultural Institute of Finland, recently 
Visited the Madison and Columbus, Wiss; laboratories, where he observed the 
methods used in the control of the pea aphis and other truck-crop insects. 
Dr. 0. G. Woodbury, of the National Cannerst Association, Vashington, | 
De Ceo, and W. E, Nicholoy, ‘Secretary of the Wisconsin Pea Packerst Association, - 
Visited the Columbus, J Wis., laboratory about the middle of June, and. saw. -) 
the new-model aphidozer in action. 
The following men have been given Pints eiudineeerne as Field 
Assistants and assigned to the laboratories indicated: D. M. DeLong, H. Il. 
Weatherby, and 0. E. Gobm, Mexican bean beetle investigations, Columbus, 
Ohio; Herman Beerman, truck=crop insect investigations, Philadelphia, Pa.; 
W. Je Douglass, Mexican bean beetle investigations, Estancia, N. Me; and A. 
C. Davis, truck-crop insect investigations, Alhambra, Calif. 
Dr. 'S.- Bs Fracker, State Entomologist of Wisconsin, Prof. R. 3B. 
Vaughan, of the University of Wisconsin, and Mr. Nudick, Chief of the Bureau 
of Plant Industry, Maine Department of Agriculture, were- visitors in June at 
the summer laboratory at Columbus, Wis. 
BEE CULTURE INVESTIGATIONS 
James I. Hambleton, Apiculturist, in Charge 
Prof. L..M. Bertholf, of Western Maryland College, Westminster, Mae’, 
and Carlton E. Burnside, of the University of Michigan, have accepted tem- 
porary appointments as Junior Biologists. Both are continuing investiga- 
tions previously begun, Professor Bertholf on the light responses af the 
honeybee, and Mr. Burnside on the fungus diseases of the honeybee. 
Visitors at the Bee Culture Laboratory in June included C. J. Carroll, 
Chief Engineer of the Szechuen Hankow Railway, Hankow, China, and George H. 
Rea, Extension Apiarist of Penns sylvania. 
