Resistant Roaches 



Koaches develop resistance to 

 chlordane, dieldrin, and lindane ; re- 

 sistance is especially widespread in 

 German cockroaches. 



Diazinon, ronnel, and malathion 

 will control resistant roaches. Apply 

 diazinon in spot treatments only 

 over the infested places as a 0.5-per- 

 cent emulsion or oil solution spray. 

 Malathion may be used at 2- to 3- 

 percent strength in similar formula- 

 tions. Konnel may be used at 

 2-percent strength. 



PLACES TO TREAT 



For best results, apply insecticides 

 to places where cockroaches hide. 



To find the hiding places, enter 

 a dark room quietly, turn on the 

 lights, and watch where the cock- 

 roaches run. 



They may hide — 



Around the kitchen sink and 

 drainboard. 



In cracks around or underneath 

 cupboards and cabinets, or in- 

 side them — especially in upper 

 corners. 



Around pipes or conduits, where 

 they 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 thor- 

 oughly, it is not necessary to spray 

 inside them; it will help to spray 

 the sides, backs, and undersurf aces. 



OTHER METHODS OF 

 CONTROL 



Bait containing either Kepone or 

 Baygon may be used in cockroach 

 control. Purchase such a bait and 

 place it in areas frequented by cock- 

 roaches. Do not use it in places 

 where it can be reached by children 

 or pets. 



BN-2291 



Brown-banded cockroach: Above, female; 

 below, male. {V/ 2 times natural size.) 



