Which type of lighting is less attractive to pests?

Sodium vapor lights are known for their effectiveness in attracting fewer pests compared to other types of outdoor lighting. This is largely due to their specific wavelength emissions, which are less appealing to insects. Sodium vapor lights produce a yellowish light that tends to attract fewer flying insects like moths, which are commonly drawn to brighter white or blue wavelengths of light.

In contrast, flood lights create a bright, broad-spectrum illumination that may attract a variety of pests. Mercury vapor lights also produce a wide spectrum of light but tend to emit higher-intensity light that can be more attractive to insects. LED lights, depending on their design and color temperature, can either repel or attract pests, but many bright white LEDs attract insects similarly to flood lights, particularly if they emit light in the blue spectrum.

Thus, sodium vapor lights are the preferred choice in many pest management situations to minimize pest attraction, making them a suitable option for outdoor areas where pest control is a concern.