What might happen if entry holes of carpenter bees are plugged without insecticide treatment?

If entry holes of carpenter bees are plugged without treating the area with insecticides, new holes may be created by new adult bees that emerge from the existing nests. Carpenter bees are known for their habit of nesting in wood, and if the previous holes are sealed, the bees may seek alternative means to create access points for nesting. This behavior can result in an increased number of holes in the structure, as the adult bees may drill new tunnels to establish their nests.

In contrast, while existing holes may seem to be sealed, they do not naturally close off or repair themselves effectively, and pest management through insecticide treatment is important to address the issue at its source. The other options do not accurately reflect the behavior of carpenter bees in relation to their nesting habits after exposure to plugging without treatment.