Southern Pine Sawyer Beetle: Harmless House Visitor

Question: Large beetle in home identified as southern pine sawyer. Dangerous? More inside? Lay eggs in house or only trees?

Southern pine sawyer beetle

Answer: Not a Problem—Just Lost

• Attacks only dead/dying pines or cut logs with bark
• Part of natural decomposition
• Will not damage houses (no bark on structural wood)
• Attracted to lights → porch/window encounters
• Eggs laid in cambium of dead wood only

Life Cycle

• Eggs in bark niches → larvae feed cambium → bore into sapwood/heartwood
• Pupate → adults chew round exit holes
• 3+ generations/year in South

Action

Escort outside. No infestation risk. No treatment needed.