Bui. 261, U. S. Dept of Agriculture. 



Plate i. 



Work of the American Plum Borer (Euzophera semifuneralis). 



a, I'lu in orchard in which the trunks of the tree are being Injured by the plum borer; i>, crack 

 In bark of apple tree through which larva "i the plum borer entered; c, galleries and young 

 larva <>f the plum borer. (Oi Iginal, I 



