Maintenance Guides / Pest & Wildlife

Inspect Deck & Eaves for Carpenter Bee Bore Holes

Difficulty: moderateTime: 45 minsEst. Cost: $20 - $300

Why it matters

Carpenter bees do not sting aggressively but bore galleries that weaken structural members; damage compounds yearly if untreated.

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How to do it

  • 1

    Inspect south-facing eaves, fascia, and deck undersides with binoculars or from a ladder

  • 2

    Look for quarter-inch perfectly round holes with minimal fraying

  • 3

    Mark holes and check nearby for sawdust or bee activity (March–June in East/Midwest)

  • 4

    Treat active holes with insecticide dust or seal holes after bees exit in autumn