Jrkb2012
UKC Forum Member
Registered: Nov 2013
Location: Convoy,Ohio
Posts: 1693 |
quote:
Originally posted by Sam Davis
Kindly goes back to the old country folks around where I was raised. After dark and after a hard days work people would sit on the porch with porch lights on - in those day people tinted their porch lights yellow and no other color, why because yellow attracted bugs less than any other color. Here is something I pulled from the internet that explains in short what color insects see:
What light is attractive to insects?
Humans can see light wavelengths in the electromagnetic spectrum from 400-800 nanometers (nm), which ranges from violet to red in color, but does not include ultraviolet (UV) light at 350 nm. Insects can perceive light in the 300-650 nm range, but prefer light that is between 300-420 nm which includes UV light. A light’s UV output is probably the most important factor in its attractiveness to insects. Since most insects are attracted to UV light, this is why most ILTs (Insect Light Traps, including bug zappers) utilize UV/blacklight bulbs as their source of attraction.
Insects generally see 3 colors of light, Ultraviolent (UV), blue and green. Bright white or bluish lights (mercury vapor, white incandescent and white florescent) are the most attractive to insects. Yellowish, pinkish, or orange (sodium vapor, halogen, dichrom yellow) are the least attractive to most insects. When white incandescent bulbs were all that was available, the advice was to change them to yellow incandescent bug bulbs. Yellow and “warm white” bulbs tend to be more like sunlight and are less attractive to insects than “cool white” bulbs that have a more bluish tone. Red bulbs are even less attractive to insects than yellow, but red provides little visible light to humans and it carries an “undesirable” social stigma from decades ago.
In addition to the color or wavelength of light, insects are also attracted to the brightness and to the heat from lights. The greater the bulb’s wattage rating, the brighter the light and the greater the drawing distance. Also, the greater the wattage, lights that use glowing filaments (incandescent, halogen, etc.), generate an increasing amount of heat. Cool lights that generate light from flowing gas (LED, sodium vapor, mercury vapor, florescent, etc.) generate less heat.
I don't see how they can claim that green attracts bugs,,I try to use my white flood LED walking light on my HORIZON light and I get attacked from every direction,,so I flip on the green LED flood light and BAM,,they disappear,,I've only used it 5 to 6 times so far,,but every time I flip on the green light,,the bugs,skeeters,etc. disappear,,to me the green light is a blessing for walking and keeping the bugs away
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