owe ess 
. the Federal Horticultural Board, and attending to various Bureau matters, 
including the airplane dusting experiments in Louisiana. 
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a fer Us Gaines, of the boll weevil force, accompanied Doctor Hunter to 
ge ington to confer with the statisticians of the Bureau of Agricultural 
Lconomics who are Cooperating with the Boll Weevil Laboratory in working 
up statistics relating to the boll weevil and its depredations, 
B.C, Bishopp, in charge of the Dallas, Tex., Laboratory, recently 
made a trip to Middietom, N. Y., in connection with ox-warble investigations. 
He was in Washington June 29 and 30 for conferences with several Department 
officials. 
Temporary employes have been added to the field force as follows: 
Boll Weevil Laboratory, Tallulah, La.-- 
Wm, C, Gideon Albert L. Monroe 
Jos. Nolan Harvey Jr. R, W. Necaise 
Sterling B, Hendricks Sherrill Sevier 
L. P. Hodges 
Tobacco Insect Laboratory, Clarksville, Tenn.-- 
L. N. Judah F. C, Plummer 
scott C. Lyon W. B. Weakley 
screwworm Substation, Uvalde, Tex.-- 
Graden Barnett 
_~ 

TRUCK-CROP INSECT INVESTIGATIONS 
J. E, Graf, Entomologist Acting in Charge 
David E, Fink, Riverton, N. J., visited Washington en route to Norfolk, 
Va., where he investigated the value of ladybirds in controlling various 
aphids affecting truck crops in that region. This work was undertaken to 
check up results obtained from the introduction of ladybirds by the Bureau 
of Entomology in 1912-1914, Mr. Fink reports that ladybirds were found 
abundantly in all fields. 
EK. G. Smyth reports from Guatemala that he has not yet found any 
specimens of the Mexican bean beetle, although a few adults of Evilachna 
borealis Fab. have been noted on cucurbits in the field, He states that 
throughout a large part of northern Guatemala beans are blooming, so that 
it may be reasonably expected that E, corrupta Muls. will soon be in evidence, 
According to Biologia Centralia-Americana, this species was collected both 
at Guatemala City and at Duenas in Guatemala, Mr. Smyth is especially intereste¢ 
in an effort to obtain parasites of the eggs and pupae of this insect, 
C. H. Popenoe is engaged at Sligo, Md., in a study of chemotropism, 
with especial attention to the discovery of attractants or repellents for the 

