Carpenter Bee Traps: DIY Plans and User Success Stories

Building and Using Effective Carpenter Bee Traps

Carpenter bees drilling into decks and furniture are a spring nuisance. Traps offer a pesticide-free management option—and readers report excellent results.

How the Traps Work

Bees investigate the pre-drilled entrance hole, enter the wooden block, and fall into the collection jar below. They cannot fly vertically to escape. The trap mimics their preferred nesting sites.

Options

• DIY: Simple wooden block with angled holes and collection jar (mason jar or plastic bottle)
• Commercial: Best Bee Brothers (patented design)

Keys to Success (From Reader Reports)

• Location is critical: Mount high, near active drilling sites, under eaves or roof lines
• Patience: May take 1-2 weeks to catch first bees
• Multiple traps: 3-4 traps for average deck
• Mason jar advantage: Easier to empty, looks better than plastic bottles

Reader Results

• 7 bees in 11 days with 3 traps
• 15 bees in 10 days with 2 traps (roof-mounted best)
• Tennis racket method: 15 bees (immediate but labor-intensive)

Ecological Note

Carpenter bees are valuable pollinators. Traps target only the few damaging structures—consider leaving some areas undisturbed for their pollination services.

Basic carpenter bee trap construction

Completed trap with mason jar collector

Proper mounting under eave near bee activity