NINTH ANNUAL REPORT STATE ENTOMOLOGIST 97 



the vicinity of Columbia Falls, in which the utilization for fuel, 

 etc., of about lo.ooo Douglas fir infested by the Douglas fir beetle 

 resulted in the complete control of depredations by this beetle, 

 which, during the preceding lo to 15 years, had caused the death 

 of more than a million trees in the general area involved. This 

 was accomplished without ultimate cost to the owner or the State. 



"The other denwnstration was in the new Olacier Xational 

 Park in co-operation with the Interior Department, in which the 

 Department paid the expenses of treating the infested trees under 

 the immediate supervision of Mr. Brunner. The disposal, according 

 to our recommendations, of 819 "white pine" trees infested with 

 the mountain pine beetle at a cost of about 50 cents per tree has 

 evidently stopped depredation by this beetle, which, during the 

 past 10 to 15 years, caused the death of over 10,000 trees. 



"Two important control projects are now under way; one known 

 as the Swan Lake Project, conducted under our recommendations 

 and instructions in co-operation with the Forest Service, the State 

 <if Montana, and the Anaconda Copper Mining company; the other, 

 known as the Tongue River Project, located in the Tongue River 

 Indian Reservation, in which the timber is being cut and barked 

 or utilized for lumber principally by Indian labor. Some $10,000 

 will be expended on this project to protect timber having an esti- 

 mated stumpage value of over $125,000 and the value of the utilized 

 ])ro(luct will go far towards balancing this direct cost. There is 

 everv prospect that this demonstration will be a success. 



■'The work that is being conducted ])y the Branch of Forest 

 insects of this Bureau, thrcnigh borest Insect Field Station 1 at 

 Columbia Falls. Montana, includes the States of Montana and part 

 of Idaho, with a temporary assignment of Wyoming and Colorado. 



"The objects as set forth in Amended Project 37, 191 1 (copy of 

 which was sent to you with my letter of June 20, 19T1) are as fol- 

 lows : 



"I. Co-operate with federal and state officials and private 

 owners in efiforts to prevent losses from insect depredations on 

 forest trees and forest products. 



"2. Co-operate with federal and state officials and ]:»rivate own- 

 ers in conducting control work to demonstrate the efficiency of 

 recommended methods. 



