Occasional Notes. 355 
posited by them, they must be ruthlessly destroyed where 
possible ; in faft the trees should be carefully watched 
so as to prevent as many of the inserts as possible from 
laying. All affe&ed young shoots which shew signs of 
withering, should be cut off below the point at which the 
central perforation is visible ; and these shoots should be 
burnt, not buried — so as to ensure the destru6lion of the 
grubs and pupae. It is very advisable that those who 
have charge of cocoa plantations should observe care- 
fully the method of egg-laying, and the incipient stages 
of the work of these inse6ls ; for not until this know- 
ledge is at hand, will it be possible to know what is the 
most efficacious and advantageous method of warfare 
that can be adopted. 
