European Com Borer 



Pyrausta nubilalis Hubn. 



1 One ear of com badly damaged by caterpillars. Note the 

 borings into the kernels and the damage to the stalk. There is also 

 a portion of an ear from which a part of the com has been removed 

 showing injury to the cob itself. 



2 Vial containing caterpillars taken from one hill of com. As 

 many as 311 have been found in one hill. (Reproduced by courtesy 

 of the Massachusetts Department of Agriculture) 



252 



