Carpenter bee control in Western North Carolina

Western North Carolina's older housing stock, abundance of natural wood, and wooded surroundings make it prime territory for carpenter bees. They're drawn to unpainted or weathered softwoods - the kind found in older decking, fascia boards, window trim, pergolas, and wooden outbuildings that are common across the region.

Activity picks up significantly in spring as temperatures rise and carpenter bees emerge to mate and establish new nesting galleries. The hovering and dive-bombing that homeowners notice is almost always male carpenter bees being territorial - they look alarming but don't actually have a stinger. It's the females doing the drilling that are worth paying attention to.

• Decking and porch fascia boards
• Roof eaves and soffits
• Window and door trim
• Wooden fence posts and railings
• Pergolas, gazebos, and outdoor furniture
• Barns, sheds, and outbuildings with unpainted wood

Carpenter bees drill near-perfect circular holes, roughly the diameter of your finger, into wood surfaces to create nesting galleries. The entry hole goes straight in for a short distance before turning to run with the grain of the wood, sometimes extending several inches or more - and existing galleries get reused and extended year after year.

On their own, a few galleries aren't a structural crisis. But left untreated over multiple seasons, the cumulative damage to fascia boards, eaves, and structural trim can become significant and expensive to repair. The other issue is woodpeckers - they're attracted to carpenter bee larvae inside the wood and will aggressively peck into the same boards to get at them, accelerating the damage considerably.

• Perfectly round holes, roughly half an inch in diameter, in wood surfaces around your home
• Coarse sawdust beneath entry holes, often on decking or the ground below fascia boards
• Yellow pollen and excrement staining below entry holes
• Large, robust bees hovering persistently around the same area of the house - particularly in spring
• Woodpecker activity on wooden eaves or fascia, which often indicates an active carpenter bee infestation underneath

Carpenter bees are often mistaken for bumblebees since they're similar in size. The key difference is the carpenter bee's abdomen — it's smooth and shiny black, while a bumblebee's is fuzzy and yellow.