Scientists at a university in the United States experimented with six commercially available light bulbs, such as incandescent bulbs and LED lights. They found that incandescent bulbs are the easiest to attract insects, while warm-colored LEDs outperform insect-repelling lamps, and the ability to attract insects is relatively poor.
According to the ScienceAlert website, Michael JusTIce, who has a Ph.D. from the University of North Carolina, recently published the report at the American AssociaTIon for the Advancement of Science (AAAS) conference.
The research team set up a funnel trap light outdoors, a light bulb in the funnel, and alternated with 6 different bulbs each night, and then counted the types and quantities of insects in the funnel in the morning. And to avoid experimental interference caused by moonlight, the researchers also plotted the moon cycle in advance to ensure that each bulb exposed to the same amount of moonlight in the experiment.
JusTIce also pointed out that in order to reduce the climate disturbance, and also to study the weather forecast in advance, after 3 months of experiment, a type of 8,887 insects were captured, and the ability of various bulbs to attract insects was also found to be different.
On the whole, incandescent bulbs attract the most insects, followed by energy-saving light bulbs (CFL), halogen lamps and cool-colored LED lights. The second most insulting insects are insect repellent lamps, but the first champion is warm-colored LEDs. light.
JusTIce also pointed out that the insect repellent effect is not only inconsistent with the advertising claims, but also more likely to attract specific insects to the door, such as the Hemiptera including the bed bugs and the earwigs.
He also said that this is the first direct comparison study of the main types of bulbs for outdoor use. After the LEDs are widely used, the effects of light pollution on insects can be greatly reduced.
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