Does Black Light Show Fleas: Uncovering Hidden Infestations With Uv

What insects are attracted to blacklights? Blacklights, which emit ultraviolet or near-ultraviolet wavelengths, are known to be highly appealing to a variety of night-flying insects such as moths, beetles, and other insect-related species. These insects are drawn to the blacklight’s glow, similar to the lights found in bug zappers but without the electronic grid for trapping. To study or observe these insects, you can find commercially available light traps in entomological supply catalogs or from specialized sources. These traps are commonly used by researchers and enthusiasts to collect and study nocturnal insects.

Which colors of light are particularly attractive to fleas? Fleas are most drawn to light in the green-yellow spectrum, specifically in the range of 500 to 530 nanometers. Interestingly, fleas cannot see red light that falls above 600 nanometers. Additionally, fleas have a unique response to light variations: when the light source is rapidly switched on and off, fleas interpret it as the movement of a potential host’s shadow. Consequently, intermittent light sources are incredibly effective at attracting fleas, luring up to eight times as many of these pests compared to a continuous light source. This preference for certain light conditions provides valuable insights into effective flea control strategies.