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Carpenter bees (Xylocopa) drill 1/2 inch holes in unpainted wood to lay eggs. Common throughout Florida, they damage decks, eaves, fascia, and outdoor furniture. Here is the treatment guide.
How to identify carpenter bees
- Look like large bumblebees but with shiny black abdomen (bumblebees have furry abdomens).
- 3/4 to 1 inch long.
- Males hover aggressively but cannot sting.
- Females can sting but rarely do.
Signs of carpenter bee damage
- Perfectly round 1/2 inch holes in unpainted wood.
- Sawdust piles below entry holes.
- Yellow staining (urine) below holes.
- Hovering male carpenter bees defending entrance.
Where they target
- Unpainted cedar siding.
- Deck railings and posts.
- Eaves and fascia boards.
- Outdoor furniture.
- Wooden play structures.
Treatment protocol
Step 1: Treat existing holes
Spray Bifen IT or carpenter bee-specific dust into each hole at dusk. Wait 24 hours.
Step 2: Plug holes
Caulk or wood putty after treatment confirmed. Some bees may emerge through new wood — plug only after 1 week of no activity.
Step 3: Paint or stain wood
Carpenter bees avoid painted wood. The most-effective long-term prevention is painting or solid-staining all wood structures.
Step 4: Treat new wood preemptively
Before installing new outdoor wood structures, treat with Bora-Care wood preservative.
Repair hole damage
Wood putty + sanding + paint repairs cosmetic damage. For structural damage in load-bearing wood, replacement is required.
Verdict
Carpenter bees are best controlled via paint/stain on all exterior wood + spot treatment of existing holes with Bifen IT. Cedar and unpainted wood are most-vulnerable; consider painting before damage occurs.
Reminder: Always read product labels and follow manufacturer safety instructions.
Keeping carpenter bees out of your Panhandle home
In the Florida Panhandle, a warm, humid climate keeps pests like carpenter bees active for much of the year, so prevention is your best defense. A few habits stop most problems before they start:
- Seal entry points — close cracks around the foundation, gaps where pipes enter, and replace worn weatherstripping and door sweeps.
- Cut the moisture — fix leaks, clear gutters, and address AC condensate; humidity draws the majority of Florida pests indoors.
- Remove food sources — store pantry items in sealed containers, wipe up crumbs, and keep trash covered.
- Trim back the yard — keep shrubs, tree limbs, and mulch pulled away from the foundation so pests can’t bridge inside.
- Eliminate standing water — a must in our climate, especially for mosquitoes and other biters.
When to call a professional
DIY prevention handles most everyday issues, but call a licensed Florida pest control pro for a true infestation, structural pests like termites or carpenter ants, stinging-insect nests near the home, or anything that keeps returning after you’ve sealed and cleaned. In our climate, termites in particular are worth a professional inspection rather than a wait-and-see approach.
Frequently asked questions
How do I keep pests out year-round in Florida? Seal entry points, control moisture, remove food and water sources, and keep vegetation back from the house. Consistency matters more than any single treatment in our climate.
Can I handle this myself or do I need a pro? Prevention and minor problems are very DIY-friendly. Infestations, structural pests, and stinging-insect nests near the home are safer left to a licensed professional.
Why are pests so persistent in the Panhandle? The warm, humid, subtropical climate lets many species stay active nearly all year, so ongoing prevention beats one-time treatment.