THE LIVING ENEMIES OF CfiO/'S 



55 



(a] the egg, (b] the larva, (c) the pupa or cocoon, and (ft) 

 the imago, or adult stage. The larva, which looks like a 

 worm rather than like an insect, is the most destructive 

 stage. Except the fiber plants, there is no crop in the 

 Philippines which is not sometimes seriously damaged 

 by insect enemies. 



HOW INSECTS ARE FOUGHT 



Various Methods Used. There are many ways of fight- 

 ing insects. The uang, for instance, is fought by many 



$^;cV^--v^:; 



Fit:. 38. Catching a swarm of locusts with a net near Manila 



different means; such as, pulling him out with a bent 

 pin, and plugging his hole with manure. Locusts are 

 fought by smoke, by great nets, by driving them into 

 ditches where they can be killed, and in other ways. 

 The Bureau of Science has tried to bring into the 



