when the fire risk is great. When burning trees which are 

 parallel with the contour of the hill, the fire should be 

 started on the upper fire line first, if the rnateris.1 is 

 dry. If it is very dry, e^tra precautions may be taken by 

 burning from the fire line on all sides before the tree it- 

 self is fired. The spreading of fire in burning "rLll be re- 

 garded aa an indication of careless and unsatisfactory work. 



Sale Arenas 



Infestations:- There seems little doubt that sale areas are 

 important factors in causing epidemic infestations. These 

 areas should be carefully watched for infestation, and if 

 such infestation appears, immediately reported- These re- 

 ports should consider two phases, one the infeetation on the 

 area, and the other the infestation in the virgin timber con- 

 tiguous to the area. Recent investigations have proved that 

 almost all freshly cut stumps are attached by the Red Turpen- 

 tine Beetle (Dendroctonus valens) and that each stump harbor- 1 : 

 a brood, They increase through successive years of cutting 

 and finally attack seed trees and poles and saplings remain- 

 ing on the area, sometimes becoming the primary agent in hil 1 . 

 ing them. These beetles undoubtedly show a preference for 

 these stumps and often will not attach live trees until cut- 

 ting ceases at the completion of the sale, or the cutting are 



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