United Statefe 

 Department of 

 Agriculture 



Forest Service 



Intermountain 

 Forest and Range 

 Experiment Station 



Research Paper 

 INT-281 



July 1981 



Monoterpenes of 

 Lodgepole Pine 

 Phloem as Related to 

 Mountain Pine Beetles 



Walter E. Cole, E. Park Guymon, and Chester E. Jensen 



