PORCUPINES 



On many national forest areas the oontrol 

 of porcupines is imperative from the standpoint of 

 timber reproduction. This is especially true on 

 out-over areas and "where fires have destroyed all 

 seedlings. Porcupines will often destroy up to 90 

 percent of the seedlings and, through continued 

 girdling of young trees 15 to 25 years of age, will 

 destroy all chance for commercial timber for many 

 years to come. 



Typical porcupine den. Picture 

 taken on Pike National Forest in 

 Colorado, in area where porcupine 

 control work was conducted under 

 the Forest Service E. C. W. program. 



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