BN-—2290 
German cockroach: A, First stage; B, second stage; C, third stage; D, fourth 
stage; H, adult female; F’, female with egg case; G, adult with wings spread. 
(1% times natural size.) 
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 
excess powder. Clean shelf sur- 
Resistance of Cockroaches 
to Insecticides 
In areas where the German 
cockroach has developed resis- 
tance to some insecticides, poor 
control of affected infestations 
may become evident. German 
cockroaches can be controlled, 
however, with the proper use of 
approved insecticides. Frequently, 
poor control of cockroach infes- 
tations is due to improper use of 
insecticides and lack of good sani- 
tation practices in infested envi- 
ronments. 
ES 
8 
faces, 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 under- 
surfaces. 
OTHER METHODS 
OF CONTROL 
Registered baits containing ap- 
proved materials may be used in 
cockroach control programs. Buy 
these baits and place them in 
areas frequented by cockroaches. 
Do not use them where they can 
be reached by children or pets. 
Fumigation 
Fumigation immediately de- 
stroys a cockroach infestation, but 
it is dangerous in congested or 
commercial areas, and it is expen- 
sive. Buildings in such areas are 
likely to become reinfested within 
a short time. 
