THE PEACH WORM 



569 



itself into the tree, its castings being the only guide to its presence. 

 The best remedy is prevention by protection from sunburn, as de- 

 scribed in Chapter XL Whenever a borer is removed, the debris 

 and dead wood should be entirely cleaned out and the smooth sur- 



Peach twig showing winter burrow, natural size. 



face left, taking care to preserve the bark as much as possible. Then 

 the wound should be smeared over with grafting wax, and a rag 

 tied about it. In this manner young trees have been saved, but if 

 seriously attacked, it is better to put in a sound tree and protect it. 



Peach worm burrow laid open, showing how the worm begins its spring 



work. 



Sun-Scald Borer. Another borer which delights in sunburned 

 trees is a minute beetle, making a burrow hardly larger than a pin- 

 hole. It is known as the sun-scald beetle (Xyloborus .vylographus). 

 The remedy, as in the former case, is to prevent injury to the bark, 

 for this precedes the attack of the beetle. 



