Sierra Pacific Industries (SPI) plans to acquire Seneca and affiliates, combining two complementary, family-owned forest products businesses.  Both SPI and Seneca have a strong focus on sustainable tree management, also managing their timberland for thriving wildlife, healthy watersheds and soils, and world-class recreation.  Seneca CEO Todd Payne says, “At Seneca, we grow more than we harvest annually.  We have 92% more timber on our land today than we had 25 years ago.  SPI also grows more than they harvest. Under their forest management plan they expect to have more large trees on ...