Bui. 262, U. 5. Dept. of Agriculture. 



Plate I. 



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a 



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Work of the Parandra Borer (Parandra brunnea). 



Fig. a. — Old apple tree broken in storm as a result of injury to the heart by Parandra borers. 

 Fig. 6.— Apple tree with heartwood and sapwood honeycombed by Parandra borers. 

 (Original.) 



