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

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Number 93 
e. _ January, 1922 
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4 } GIPSY AND BROWN-TAIL MOTH INVESTIGATIONS . | 
s | A. F. Burgess, Entomologist in Charge hanes 
At the end of January, 1922, S. S. Crossman and Dr, John N. Summers, 
who have been associated with this branch for several yearga, will leave this 
5 country to take up parasite work in Europe and Japan respectively, in con- 
tinuation of work along this line which was interrupted by war conditions. 


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 - Prior to the war, parasites from abroad were received in this coun- 
* try and were propagated and disseminated throughout the area infested with 
the gipsy and brown-tail moths. fany of the species imported were success- 
fully established and it was purposed to continue the work of importing, 
studying, and colonizing in the field all species of parasites which were 
found to aid in the control of the two pests in their native homes. 
The outbreak of the world war prevented a continuation of this ef- 
fort. It is believed that much benefit will be derived from further work 
_ abroad in importing beneficial parasites to aid in control in thig country. 
A number of species which were imported prior to the interruption of this 
work did not become established for various reasons, some of which are not 
well understood at this time. It seems certain that some of these species 
may be established if study is continued and earnest effort made through 
foreign work by scientists experienced in moth investigations in this 
country. 
Mr. Crossman will visit Portugal, Spain, Italy, Austria, Czecho- 
slovakia, France, and Germany in an endeavor to supplement the informa- 
tion which we now have regarding the gipsy and brown-tail moths in their 
Native homes, as woll as the parasites which attack them. 
‘ Dr. Summers will visit the localities in Japan which promise the 
greatest results. 
wa OY LLNS IEEE SENN LOT ETE ORG, 
CEREAL AND FORAGE INSECT INVESTIGATIONS 
W. R. Walton, Entomologist in Charge 



arry L. Parker, attached to the corn-borer investigations, for- 
- merly located at Arlington, Mass., sailed for France on January 17 for 
; the purpose | f assisting W. R. Thompson in the collection and shipment 
of arasites of the corn borer from France to the United States. Mr. 
rs address will be: European Parasite Laboratory, Domaine du Mont 
nouillet, Hyeres, Var, France. 
