So the Photonic Fence is being developed!

I want one.

Lighting Science and Global Good to Develop Light-Based Alternatives to Pesticides

Basically, it uses a low power infra-red light to spot flying insects, then hits it with another low power laser that determines the wing beat frequency and then if it’s in a specific range – matching female mosquitoes – (males are different to females, and only females bite) then it gets hit with a higher power laser that kills the insect.

Living near a river with marshlands nearby, this would be a life-saver. Possibly without hyperbole.