Gipsy moth 

 Porthetria d i s p a r Linn. 



Practically clean stands of pine and maple near Metheun, Mass., June 

 30, 191 1. These areas were protected simply by cutting out tin- 

 favorite food plants and practically no injury resulted, as the young 

 caterpillars were unable to develop upon either the pine or maple. 



160 



