c 



s / 



BN-2290 



German cockroach: A, First stage; B, second stage; C, third stage; D, fourth stage; E, adult 

 female; F, female with egg case; G, adult with wings spread. (iy 2 times natural size.) 



Fumigation 



Fumigation immediately destroys 

 a roach infestation, but it is danger- 

 ous in congested or commercial 

 areas, and it is expensive. Also, 

 buildings in such areas are likely to 

 become reinfected within a short 

 time. 



Since effective residual insecti- 

 cides have become available, fumi- 

 gation is seldom used. Only a pro- 

 fessional pest-conlrol operator 

 should fumigate. 



Boric acid and borax 



Finely powdered boric acid and 

 borax (sodium tetraborate penta- 

 hydrate) act slowly and are gen- 

 erally less effective than other insec- 

 ticides against cockroaches. 



These materials are sometimes 

 mixed with ingredients that are at- 

 tractive to cockroaches, and com- 

 pressed into tablets to be used as 

 bait. The powders or bait tablets 

 may give satisfactory results when 

 used in places where there is little 



food for cockroaches, such as in of- 

 fice buildings. 



PRECAUTIONS 



Pesticides used improperly can be 

 injurious to man, animals, and 

 plants. Follow the directions and 

 heed all precautions on the labels. 



Store pesticides in original con- 

 tainers — out of reach of children 

 and pets — and away from foodstuff. 



Apply pesticides selectively and 

 carefully. Do not apply a pesticide 

 when there is danger of drift to 

 other areas. Avoid prolonged in- 

 halation of a pesticide spray or 

 dust. When applying a pesticide it 

 is advisable that you be fully 

 clothed. 



Do not apply oil sprays where 

 they could be ignited by a flame 

 (for example, the flame of a pilot 

 light) or by electric sparks. 



Do not use lindane, diazinon, 

 ronnel, chlordane, or dieldrin to 

 treat an entire room. Restrict the 

 use of these insecticides to places 

 where roaches run or hide. 



