CONTROL OF THE CIGARETTE BEETLE O 



caught, but this method was abandoned because the beetles varied 

 considerably in moisture content, and to dry them out in an oven 

 required too much time. Measuring the beetles in calibrated glass 

 containers (fig. 4), graduated from 500 to 500,000, was then tried 

 and found to be satisfactory. 



Figure 4. — Calibrated glass graduates used for determining the approximate number of cigarette beetles 

 caught in the suction light traps. These graduates are calibrated as follows: 1,000, 10,000, 25,000, 50,000, 

 and 503,000. The volume of 1,000 cigarette beetles is about 3 cc. 



NUMBERS OF BEETLES CAUGHT 

 EXPERIMENT 1 



In the first experiment trapping was conducted in warehouses 

 containing Turkish tobacco totaling 1,105,000 cubic feet and in 

 warehouses filled with domestic flue-cured tobacco totaling 4,199,000 

 cubic feet. These buildings were located near each other, and one 

 trap was used for each 110,500 cubic feet of warehouse space. Ten 



