FOREWORD 



Killing destructive insects with their own diseases 

 is a pest control method now used to some extent in the 

 United States and other countries. The method has some 

 distinctive advantages and is regarded as a worthwhile 

 addition to other methods of pest control. Research is 

 in progress to learn more about its merits for protect- 

 ing forest trees and agricultural crops. 



This report compiles information designed pri- 

 marily to inform Extension and other agricultural 

 leaders about research developments in microbial pest 

 control- -a method not very familiar to farmers or the 

 general public. 



Information in this report was provided by the Entomology Research 

 Division of the Agricultural Research Service and the Division of Forest 

 Insect Research of the Forest Service. 



