22 



BULLETIN 1490, U. S. DEPARTMENT OF AGRICULTURE 



The defect does not deteriorate furniture and inside-finish stock. 

 This defect is considered under " wormholes, no living worms or 

 decay," and in the interest of conservation and closer utilization, 

 timber with these defects should be used. 



Fig. 24. — A, grab holes made by a flat-headed borer (Buprestis arprioans) in the 

 pitchy " fatwood " of the basal log of long-leaf pine ; B, the same in a turpentined 

 tree 



PINHOLE INJURY TO IMPORTED LOGS 



Large quantities of tropical woods in the rough, round, or squared 

 log are yearly shipped into the United States from Central and South 

 America, the West Indies, Africa, and the Philippines. (Figs. 12, 13, 

 and 14.) Almost invariably such timber, if received within a year 

 after it is cut, contains mam' species of pinhole-boring beetles, but 

 these never live over the winter, except perhaps in the Gulf States. 





