Table 4. --Average number of cigarette beetles taken in 
suction light traps in 2 screened, closed-type ware- 
houses of Turkish tobacco, 1 sprayed weekly with 
pyrethrum in oil from July 25 to September 26 and 
the other untreated. Richmond, Va., 1945 
Trapping 
period, 
week ending— 
Untreated 
Sprayed 
July 
19 
3 
600 
• 
5 
,600 
26 
6 
000 
10 
,000 
Aug. 
2 
6 
600 
10 
,700 
9 
7. 
800 
5 
,000 
16 
14. 
200 
3 
,000 
23 
21. 
000 
340 
30 
106. 
000 
150 
Sept. 
6 
116, 
670 
70 
13 
30. 
000 
300 
20 
16 
683 
24 
27 
23, 
300 
24 
Oct. 
4 
15, 
000 
35 
11 
2, 
000 
2 
18 
750 

25 
10 
,000 
16 
