1934 ] 
Mosquito Investigations in Alaska 
201 
MOSQUITO INVESTIGATIONS IN ALASKA 
By George S. Tulloch 
Brooklyn College, Brooklyn, N. Y. 
During the summer of 1931 the United States Department 
of Agriculture and the United States Smelting Refining and 
Mining Company entered into a cooperative agreement in 
connection with investigations as to the “habits, biology and 
methods of control of mosquitoes in Alaska”. The writer 
was employed by the United States Smelting Refining and 
Mining Company to carry on the investigations under the 
technical direction of F. C. Bishopp of the Bureau of En- 
tomology. The investigations were carried on in the vicin- 
ity of Fairbanks, Alaska, with headquarters at the Fair- 
banks Exploration Company, a subsidiary of the United 
States Smelting Refining and Mining Company. Labora- 
tory quarters (Fig. 1) were located at Fox, eleven miles 
northeast of Fairbanks. 
The purpose of the investigations was to determine if 
practical control methods could be suggested which would 
reduce the annoyance of mosquitoes to men engaged in gold 
mining operations. In this region workmen must protect 
themselves from the attacks of these pests. Nets (Fig. 2) 
and gloves or similar means of protection (Fig. 3) serve 
this purpose during the periods in which mosquitoes are 
abundant. Although mosquito investigations have been 
carried on in many parts of the world, it is believed that this 
was the first attempt to study the control of mosquitoes in 
a practically arctic environment. 
The area in which the investigations were carried on lies 
between 64°-10’ and 64°-50’ north latitude and between 
147°-20’ and 147°-20’ and 147°-50’ west longitude in the Yu- 
kon-tanana region which forms a part of the central plateau 
of Alaska. Mr. James Crawford, research engineer of the 
