214 Forestry Quarterly. 



protection against insects will become more important. At the 

 same time the opportunity for practical control will improve. 

 Through free use and ranger sales the small local infestations 

 can be disposed of as they appear. There is reason to believe 

 that eventually satisfactory insect control can be established, not at 

 prohibitive expense but even at an actual profit to National For- 

 ests. 



