i double checked after I saw your comment:

The original project “Photonic Fence” is real and theoretically work however it never turned into a product because it requires very expensive components to identify and kill a mosquito in the fraction of a second it passes in front of the device not to mention the risk of that laser reflecting on something and blinding a passing person.

However other products with same concept are for sale currently and those are the fraud.

I apologize for the misinformation in my original comment