; 
20 and 21, 
=~ O = 
M, E, Ryberg, a recent graduate of the University of Minnesota, has been 
Bppesnted agent and assigned to the Boyce-Thompson Institute of Plant Research, 
at Yonkers, N. Y,, for duty in connection with a cooperative project between 
the Institute and the Bureau, 
___ 4 portion of the foreign parasites of the corn borer which have been 
shipped from Arlington to the middle West for liberation in the field have in- 
cluded adults of Angitia punctoria Roman, which were reared from corn borer 
material Collected in New England, This foreign paragite of the corn borer, 
originally introduced into New England, has been recovered in increasing 
numbers each year in’ that area, and is now being used for recolonization. 
. +. Dy J, Caffrey returned to Headquarters at Arlington, Mass,, on duly 2, 
after spending the greater part of April, May, and June in the middle West, in 
Connection with the corn borer cleansup campaign and the various corn borer re- 
search projects under way in that segtion, 
, Adults of the imported corn borer parasite Exeristes roborator Fab. have 
been recovered jin the parasite conservation cages at Monroe and Erie, Mich. , 
and at Sandusky, Ohio, 
-.-D, W. Jones and B, E, Hodgson were at Amherst, Mass., on May 31, for a 
conference with Director S, B, Haskell relative to the cooperative project be- 
tween the Massachusetts Experiment Station and the Bureau, 
Recent visitors at the Monroe, Mich., corn borer laboratory included Prof, 
H, F, Wilson, of the University of Wisconsin; Prof. J, J. Davis and Dr. Kraybill, 
of Purdue University; Prof. 0. W, Wogdworth, of the University of California, 
and Dr. Herbert Qsborn and Herbert Qgborn, Jr., of the Ohio State University. 
. T, E. Holloway, in charge of the New Orleans, La., field station, was in 
Washingten July 8 to ll, inclusive, for conference relative to dusting operations, 
Dr. W. H, Larrimer attended the corn borer conference at Toledo on July 
F, W. Poos, of the Virginia Truck Crop Experiment Station, spent a few 
hours in the Washington office on July 23. He was formerly connected with the 
European corn borer research work of this bureau. 
L, H. Worthley, of the Toledo office, was in Washington July 9, for con- 
ference on matters relating to corn borer control,. _ | 
—_ 
