Around pipes or conduits, where 

 the> T pass along the wall or go 

 through it. 



Inside the motor compartment 

 of mechanical refrigerators. 



Behind window or door frames. 



Behind loose baseboards or mold- 

 ing strips. 



On undersides of tables and 

 chairs. 



In radio and television cabinets. 



Behind mirrors. 



On closet and bookcase shelves. 



When treating cupboards and 

 pantries, take everything from 

 shelves and remove drawers so that 

 food and utensils will not become 

 contaminated. 



Spray or dust the interiors. Al- 

 low the spray to dry, or clean up ex- 

 cess powder. Clean shelf surfaces, 

 or cover them with paper, before 

 replacing the articles. 



If drawers are cleaned thorough- 

 ly, it is not necessary to spray in- 

 side them; it will help to spray the 

 sides, backs, and undersurfaces. 



Other methods of 

 control 



Fumigation, boric acid and borax, 

 and phosphorus paste are some- 

 times used to control cockroaches 

 when sprays and dusts cannot be 

 used. These other methods may 

 not be completely effective but are 

 useful under certain conditions. 



Fumigation 



Fumigation immediately de- 

 stroys a roach infestation, but it is 

 dangerous in congested or com- 

 mercial areas, and it is expensive. 



* 



Female Australian cockroach. ( 1 '/> times 

 natural size.) 



Brown-banded cockroach: Above, female; 



below, male. ( 1 V2 times natural size.) 



Also, buildings in such areas are 

 likely to become reinfested within 

 a short time. 



Since effective residual insecti- 

 cides have become available, fumi- 

 gation is seldom used. Only a pro- 

 fessional pest-control operator 

 should fumigate. 



