640 



AMERICAN FORESTRY 



, : 



ml 









# 





Twisted Growth Indicating Presence of Pine-Shoot Moth 



only found within definite parts of 

 certain kinds of trees, namely, in the 

 next year's buds of pines, makes 

 effective control work much easier than 

 is the case with insect pests which are 

 general feeders and which are not 

 confined to definite parts of the food 

 plant, as, for example, the gipsy moth 

 or the brown-tail moth. While the 

 European pine-shoot moth is confined 

 to nurseries and private parks and has 

 not spread to the native pines, it should 



prove a comparatively easy task to 

 eradicate the species absolutely within 

 any limited area. At the present time 

 it would even seem possible completely 

 to stamp out this dangerous pest in 

 America, and forestall the infestation of 

 our native pine forests, provided that 

 the danger of new infestation is removed. 

 But when once the species has multiplied 

 sufficiently to become generally distri- 

 buted on the native pines the possibility 

 of eradication will be past. 



