The home of 20 Mule Team Borax, Borax.com will give you a quick education in the myriad of uses for borax... from agriculture to glass to insulation to pest control to wood protection.
Borax is definitely another option for insect control. The US Forest Service has used borax for years to control fungus in forests. NISUS Corp. in Rockford, Tennessee has a product called "Tim-Boor" which is effective in the control of wood-destroying insects. Borax-based, it has low toxicity to wildlife when diluted "in the wild"