How does the Bug Lamp work?
Insects and humans have different visual perceptions. This allows for people to have better control of nocturnal insect nuisances by adjusting the color of lighting. The human visual system is activated by radiant energy in the color range from deep blue to dark red, which we call light. The vision of flying insects, however, is shifted away from long-wavelength red toward the shorter blue and near ultraviolet (black light) wavelengths of the electromagnetic spectrum. Sources which radiate ultraviolet energy and blue light are most attractive to flying insects, while those with a deficiency of ultraviolet and blue are less attractive. Insects see black light fluorescent, mercury, and metal halide best. Lamps which insects have a difficult time seeing include incandescent, high-pressure sodium, and bug light incandescent (yellow). RESIDENTIAL AREAS Homeowners can reduce insect annoyance by using incandescent “bug lamps”, gold fluorescent, or high-pressure sodium near entrances. Unfortun
