"...แมลงศัตรูป่าไม้..." indeeds!

Perhaps a view point like 'Interactions between (some) insects and forests' would be more neutral and indicative of a search for knowledge (rather than engagement in wars od species). Students should learn and be taught interactions and dependencies in "Nature".

A fact often overlooked is tha 'man' is the greatest destroyers of forests. Man should learn to interact with forests in better ways. Insects are there doing their interactions too.