A carpenter bee trap having at least one entrance hole, at least one plenum section connecting the at least one entrance hole to at least one receptacle adapter coupling, and least one removable receptacle attached to at least one receptacle adapter coupling, the at least one removable receptacle made of a material that admits ambient light to a greater extent than the material forming the plenum such that insects entering the trap follow a path of increasing intensity of ambient light that leads them to the receptacle. In one embodiment, existing carpenter bee nests are treated with a disclosed insecticide gel. The insecticide gel consists of a thixotropic, injectable, non-hardening, non-volatile gel blended with a pyrethroid insecticide, in effect converting the bee nest into a trap.
