1% MONTHLY LETTER OF THE BUREAU ,OF ENTOMOLOGY 
) UNITED STATES DEPARTMENT OF AGRICULTURE 
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 Nutlber 160 | QNiugust, 1927 
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GIPSY MOTH AND BROWN-TAIL MOTH INVE 


A. F. Burgess, Senior Entomologist, In 

t Dr. I. M. Hawley, of Salt Lake City, Utah, J. @: Sanders, of 
"Philadelphia, and Gonzalo Merino, in charge of Pest Control and Plant 
» Quarantine at Manila, Philippine Islands, have recently visited the 
Beoey moth laboratory. S. A. Rohwer, E. B. O'Leary, and Dr. F. C. 
Craighead, of Washington, have also been in conference at the Melrose 
_ office within the month. | 
C. R. Addinall, chemist, of the Harvard Graduate School, has ac-— 
cepted a temporary appointment to conduct investigations of the injury 
caused by the reaction of lead and calcium arsenates on various types of 
foliage. : 
In the week of August 15 A. F. Burgess attended the annual meet- 
' ings of the Northeastern Entomologists. The meetings included trips 
through the orchard sections, and visits to the entomological laboratories 
Poin southern Pennsylvania, western Maryland, Virginia, and West Virginia. 
' On his return Mr. Burgess stopped for a day at Washington, to confer with 
Bureau officials. 
A. F. Burgess, H. L. Blaisdell, E. B. O'Leary, and H. L. McIntyre, 
‘Supervisor, Forest Pest Control for the State:of New York, held a meeting 
at Pittsfield, Mass., on August 24 to discuss cooperative plans of gipsy 
moth work in the State of New York. 
j J. V. Schaffner and C. M. Symonds, of the gipsy moth laboratory, 
conpleted on August 30 a two week's trip into New York State, collecting 
native larvae to determine the dispersion of an imported gipsy moth para- 
site, Compsilura concinnata. Although this tachinid is one of the best of 
the imported gipsy moth parasites, it is not dependent upon this host alone. 
It has been recovered from many native insects, and is known to be present 
at least 100 miles west of the gipsy moth dispersion line. Approximately 
150 different collections were made. These were obtained from the south- . 
~ eastern, central, and northeastern parts of the State, along a route which 
. ae Monroe, Binghamton, Cortland, Sherburne, Cazerovia, Oneida, 
Syracuse, Parish, Rome, Pulaski, Watertown, Antwerp, Ogdensburg, Gouverneur, 
Potsdam, Malone, Paul Smiths, Champlain and Plattsburg. During the fall 
many parasite records are made from these collections, but in some cases 
the hosts must be held through the winter to obtain the parasites after 
hibernation. 
