ae A 
CEREAL AND FORAGE INSECT INVESTIGATIONS 
We H. Larrimer, Entomologist, in Charge 
From July 7 to July 9,inclusive, Dr. W., H» Larrimer was in the Boston, 
Masse, area for consultation with L. H. Worthley and D. J. Catfrey regardine 
the corn borer work, He exemined the field and laboratory experiments in 
progress and made a tour of: inspection in -the field, 
An imported species of European corn borer parasite, Angitia (Dioctes) 
punctoria Roman, was recovered in encouraging numbers in June and “July in the 
New England area. A total of five imported species have now been recovered 
in this area, Ten species have thus far. been liberated in the field. 
Dr. C. Le Marlatt, A. F. Burgess, and D. M. Rogers, and Dr. Stepan 
Soudek, of sas College of Agriculture and Forestry at Brno, Czecho slovaleias 
were recent sitors at the Arlington laboratory. 
On July 14 RB. C. Ellis, of ‘the Arlington laboratory, left for tHe 
Monroe, Mich., corn borer. laboratory, where he will install and, in cooperation 
with Dr. Luginbdiil, supervise an extensive rearing campaign of Exeristes 
roborator Fab. and Habrobracon brevicornis Wesm., two of the imported para= 
sites of the corn borer. This work will supplement and reinforce the colonies 
of these two species liberated in Michigan, Ohio, Pennsylvania, and western 
New York in the last three years. E.roborator was recovered in northwestern — 
Ohio in the autwm of 1925. Mr. Ellis will remain at Monroe until about 
September l, 

In July many specimens of the larva of the lined stalk-borer, Hadena 
fractilinea Grote, were sent from locelities in Michigan, Ohio, Connecticut, 
and Rhode Island to the Arlington corn borer laboratory. The appearance of 
the larva, and its characteristic injury to young corn, bear a superficial 
resemblance to those of P. nubilalis, 
K. We Babecck and As M. Vance, of the Arlington laboratory, now en= 
gaged in ecological investigations-in Europe, report that weather conditions 
during May and June were untfevorable for field work in Hungary, Jugoslavia, 
Germany, and Poland. The seasonal development of the corn borer has been de= 
layed in the areas under observations 
Commissioner C. P. Norgord, of the New York Department of Agriculture, 
visited the Silver Creek, 'N. Y., corn borer laboratory on July 2<O for con= 
sultation with H. N.. Bartley, in charge, and.to become familiar with corn 
borer conditions in western New York, 
W. R. Walton was at the Silver Creek corn borer laboratory on July 19 
and <0, for conferences rezarding the work in that area. 
~ 
C. Wl. Ainslie, of the Iowa station, spent the week of July 9 making 
a survey of conditions in Minnesota relating to the green bug and other insects, 
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