In such instances a pest control op- 

 erator should be consulted. Sometimes 

 infestations are isolated in large tim- 

 bers and he can obtain results quickly 

 by injecting chemicals under pressure 

 through boreholes spaced at short in- 

 tervals. If the pests have spread into 



the walls, fumigation may be re- 

 quired — a dangerous job that must be 

 done by a qualified fumigator. Fumiga- 

 tion does not guarantee against rein- 

 festation, but it is the only proven way 

 of dealing with severe hidden attacks. 



What About Furniture And Other Moveable Hardwood Items? 



If such items are infested when 

 brought into the house, exit holes will 

 usually appear within 3 or 4 years. 

 Insecticides can be brushed or sprayed 

 on, preferably after removal of the 

 finish. If the attack is light, the in- 



secticides can be put into individual 

 holes with a small brush or a plastic 

 squeeze bottle equipped with a tube 

 that will produce a pinpoint stream. 

 Do not treat parts of furniture that 

 people will touch. 



F-521238 



Cross section through an 8- by 8-inch pine beam damaged by the beetle 

 called the old house borer. 



