BORING IN THE TRUNK 237 



The Flat-headed Apple-tree Borer (Chrysohothris femorata Fab.) 



Fig. 305. 



The Flat-headed Apple-tree Borer. Work 

 and larva. Original. 



The flat-headed apple-tree borer works only in the sapwood, often 

 well up on the trunk, and completes its life round in one year. The 

 grub has a flattened and enlarged 

 segment just back of the head. Its 

 parent is a small, metaUic colored 

 beetle. The food plants include 

 apple, pear, peach, and various 

 forest trees such as oak and maple. 



Eggs are laid in June and July. 

 The grub makes shallow burrows, 

 for the most part just under the 

 outer bark. The insect hibernates 

 as a grub in the burrows. 



Remedies are the same as for the round-headed apple-tree borer, 

 but mechanical protectors must inclose the entire trunk. 



The Peach-borer (Sanninoidea exitiosa Say) 



An exudation of gum, often mixed with sawdust or frass, usually 

 close to or just beneath the surface of the ground, is the outward e\i- 



FiG. 306.— Adult of the Flat-headed 

 Apple-tree Borer. Original. . 



