Which types of wood are specifically mentioned as being susceptible to infestation by the Old House Borer larvae?

Answer

Softwood like pine, spruce, or fir

The larvae are known to chew galleries deep into seasoned lumber, with a specific affinity noted for softwoods such as pine, spruce, or fir.

Which types of wood are specifically mentioned as being susceptible to infestation by the Old House Borer larvae?
insectwoodpestborerhouse borer