TRUCK-CROP INSECT INVESTIGATIONS 
J. H. Graf, Senior Entomologist, in Charge 
B. iG. Boyden, of the Tampa, Lew labora tory, attended the sixth 
annual meeting of farmers and fruit growers at Sainesville, Fla., August 
8 to 13, where he presented a paper on the sweet potato weevil, 
J. EB. Graf visited Riverton, N. J., on August 9, where tests in 
rapping and controlling the Japanese beetle were imder way at the Jap- 
anese Beetle Labora ntory. ; 
N. FP. Howard, of the Columbus, Ohio, Mexican bean beetle labora- 
tory, attended the meetings of the Northeastern Entomologists held at 
Gettysburg, Pa., and other points, August 17 to 19. Before returning to 
Gdlmbud he visited Washington for conference, 
H. White visited the Chadbourn) ‘N. C,, laboratory August 18 to 
23, to discuss with W. A. Thomas res earch on the strawberry root louse, 
and other problems under way there. Sérious losses to strawberry plant- 
ings have occurred in the Chadbourn Section, and the cause has not been 
definitely determined, The indications Bett omer een that the strawberry 
root louse is. a factor, and experiments will be inaugurated shortly to 
determine the extent of its responsibility. 
the temporary appointment of Dr. Clay.G. Huff, who was appointed 
to undertake an investigation of the effect of bacteria on the development 
of the seed corn maggot at the Chadbourn, “N. C., laboratory, was terminated 
On August 22, Dr. seas Will nov be associated with the Zoological Depart- — 
ment of the University of Georgia, at Athens. 
C. F. Henderson, Agent, who spent several months in the Argentine 
Republic, studyi ng the natural enemies. of the sugar-beet leafhopper, re- 
turned to the United St a owe New York in the early part of August. En 
rouve to Berkeley, Calif., where he will continue his investigations on 
the sugar-beet daeeeeh ie He stopped off at Washington and discussed with 
some of the entomologists the results Of his survey. He was unable ‘to 
Locate the sugar-beet leafhopper in Argentina, 
- L. Cockerham, of Biloxi, Miss., reports that EB. Mortensen, As- 
istant se ager £ist, representing the Commonweelth of Australia, paid his 
1a visit on August 24. Mr. Mortensen is engaged in investigations 
ue te <ly pear, and has svent some time in this country collecting 
imens, 
». E. Crumb, of Clarksville, Tenn., and F. S. Chamberlin, of 
Fla., are now temporarily located at Tampa, Fla., where they are 
ae exPerimenys on vacuum fumigation for the control of the cigarette 
Quincy , 
conduc t 
beetle, 
pus 
EE —— 
