FARMERS BULLETIN 845. 

 NATIVE ENEMIES. 



Few insect enemies of the gipsy moth native to New England cause 

 any noticeable reduction in its numbers. This is shown by the fact 

 that between the years 1900 and 1905, when no systematic effort 

 was made to suppress the insect, alarming injury resulted, and native 



insect enemies did not increase to any marked degree. The same is 

 true of the work of native insectivorous birds. While they undoubt- 

 edly feed to some extent on gipsy-moth caterpillars, there is no case 

 on record where they have been able to control the species. The 



