MONTHLY LETTER OF THE BUREAU OF ENTOMOLOGY | 
UNITED STATES DEPARTMENT OF AGRICULTURE 


Number 110 June, 1923 
LIBRARY 
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FRUIT INSECT INVESTIGATIONS 


A. L. Quaintance, Entomologist in Charg 
Dr. D. T. Fullaway of Hawaii has been appointed specialist in para- 
sites of white grubs and has sailed for Yokohama, Japan, where he will be 
- associated with C. FP. Clausen in the Bureau's search for parasites of the 
Japanese beetle. Dr. J. F. Illingworth also is now in Japan for the 
purpose of searching for parasites of this beetle. 
QO. I. Snapp, in charge of peach insect investigations at Fort Valley, 
Ga., reports that specimens of Conotrachelus anaglypticus Say and C. ecribricollis Say 
are being taken occasionally when jarring for the flum curculio, C. nenuphar 
Herbst. C. anaglypticus breeds in peach, and the life cycle is very similar to 
that of C. nenuphar. 
Adults of the first generation of the plum curculio started to emerge 
June 7. They were leaving the soil in numbers during the 10 days following, 
as indicated by an increase of over 100 per cent in the number collected 
during that time by jarring. On account of the lateness of the peach crop 
this year, it is.believed that the Hileys as well as the Georgia Belles and 
_Elbertas.will be attacked by second-generation larvae. 
Parasites of Conctrachelus nenuphar are in evidence this year. Chief among 
these are Jviaspis curculionis Fitch. Some boxes containing larvae of C. nenuphar 
show TZ. curculionis parasitism as high as 14 per cent. 
Fred E. Brooks, of the French Creek, W. Va., station, was in Washing- 
ton during the week of June 10 for a conference regarding control of nut 
weevils in the Department's experimental chestnut orchards at Bell, Md. He 
also visited nut-tree nurseries and orchards in Dinwiddie County, Va., where 
there has been a serious outbreak of the hickory twig-girdler, Oncideres cingulata 
Say. 
Dr. E. D. Ball, accompanied by Dr. A. L. Quaintance, recently visited 
the boll weevil station at Florence, S. C., being conducted by the Bureau 
of Entomology in cooperation with Clemson College. A visit was also made 
to the extensive plant-breeding farms of David R. Coker at Hartsville, S. C. 
SOUTHERN FIELD-CROP INSECT INV&STIGATIONS 
J. L. Webb, Entomologist Acting in Charge 
Doctor Hunter spent a few days in Washington during the month conferring 
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