Smithsonian Report, 1941. — Craighead 



Plate 6 



1. Treating White pine Trees Infested v\ i t h Broods of the Mountain pine 

 Beetle by burning Decks of Infested Logs. 





Treating White Pine Trees Killed by the Mountain Pine Beetle by peel 

 iNG Bark from infested Portion of Bole. 



When exposed, the insects are destroyed by ants and small mammals. 



