20 THE GIPSY MOTH AS A FOREST INSECT. 



retard the progress of the moth into territory not as yet mfested, 

 the request for such cooperation would appear to be well justified. 



This project, to bring good out of the evil that has resulted through 

 the estabhshment of the gipsy moth, by combating it through 

 methods which would make American forests more valuable than 

 they have ever been before, is no mere vision. Evidence enough 

 of its practicability in the case of the mixed stands of oak and pine 

 already referred to is easily found and sufiiciently convincing. 

 That other types of natural forests may be handled so as to make 

 the outcome advantageous to the forest owner as well as to the 

 whole country, it is only reasonable to expect. 



The Forest Service and the Bureau of Entomology will attempt 

 to do their share of the work, through cooperative study of the 

 technical aspects of the problem. Experimental and demonstrative 

 work must precede definite recommendation, and in this the aid and 

 assistance of the forest owners themselves must be secured. If a 

 spirit of hearty cooperation can be established and maintained it 

 would seem as though the problem would all but solve itself. 



Approved : 



James Wilson, 



Secretary of Agriculture. 

 Washington, D. C, November 5, 1912. 



ADDITIONAL COPIES of this publication 

 -t\. may be procured from the SoPERrNTEND- 

 ENT OF Documents, Government Printing 

 OtBce, Washington, D. C, at 5 cents per copy 



