https://www.vice.com/en_us/article/dy743w/scientists-create-ai-powered-laser-turret-that-kills-cockroaches

Everyone wants to be able to just zap a bug and have it go away. But now, thanks to a recent development from Ildar Rakhmatulin, a research associate at Heriot-Watt University interested in machine learning and engineering, this dream is now a reality.

In the study—which was conducted last year but published in Oriental Insects last week—Rakhmatulin and his co-authors used a laser insect control device automated with machine vision to perform a series of experiments on domiciliary cockroaches. They were able to not only detect cockroaches at high accuracy but also neutralize and deter individual insects at a distance up to 1.2 meters.