Healed over bore holes in red oak indicate what and what can occur?

Healed over bore holes in red oak indicate what and what can occur?

• A. They show higher moisture content.
• B. They indicate previous damage and can lead to mineral stain.
• C. They have no significance for veneer.
• D. They prevent mineral staining.

Answer: (B)

Main idea: healed bore holes show a history of prior damage in the tree, and in red oak that history can lead to mineral stain in the wood. When a tree is wounded by borers or other injury, the growth tissue can close over the hole, leaving a scar. This healed area marks past damage. In red oak, the tannin-rich wood around such scars is prone to reacting with iron and minerals that the wood encounters during processing, drying, or handling. That reaction creates mineral stain, a dark discoloration that can run from the wound into surrounding wood and reduce veneer quality. So, healed bore holes indicate previous damage, and they can set the stage for mineral staining to occur if the wood is exposed to metal, moisture, or certain conditions during milling and finishing.

Main idea: healed bore holes show a history of prior damage in the tree, and in red oak that history can lead to mineral stain in the wood.

When a tree is wounded by borers or other injury, the growth tissue can close over the hole, leaving a scar. This healed area marks past damage. In red oak, the tannin-rich wood around such scars is prone to reacting with iron and minerals that the wood encounters during processing, drying, or handling. That reaction creates mineral stain, a dark discoloration that can run from the wound into surrounding wood and reduce veneer quality.

So, healed bore holes indicate previous damage, and they can set the stage for mineral staining to occur if the wood is exposed to metal, moisture, or certain conditions during milling and finishing.