Essentially, their tiny bug brains think the light is the sunset, so they keep turning to keep the "sun" at the same angle so they can go "straight." No matter how far they fly, they don't make any progress. They are trapped in this little hell we made just for them, not understanding why they can't get to where they are going.

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[–] alvvayson@lemmy.world 28 points 9 months ago* (last edited 9 months ago) (7 children)

I learned this back in the 90s, I'm surprised new research is needed.

The solution seems to be LED lighting. The right LED bulbs don't trigger the bug brains.

Edit to add source (below) and I forget the detail: it's about using LEDs with less blue light, since blue light affects the bugs.

https://phys.org/news/2022-10-impact-energy-efficient-streetlights-insects.html

[–] Shkshkshk@dice.camp 17 points 9 months ago* (last edited 9 months ago)

@alvvayson Existing research was about "how do we stop the bugs from circling our lights?". This is about *why* the bugs circle the lights. It artificially triggers the dorsal reflex, which disorients the bugs.

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