I have been known to grumble that mosquitoes are a creature I would not be too worried about if they appeared on the endangered species list. Mosquitoes and gnats are more than just a pest. They spread diseases such as dengue fever, filariasis, Japanese encephalitis, malaria, West Nile virus, and yellow fever.
Understandably I have high hopes that this invention becomes widespread.
The comment about power supply is rather daft. This technology could easily be combined with solar power. Mosquitoes are a problem in urban areas too. I recall the unpleasant sight of a whole ferry bulkhead covered in mosquitoes in Venice. Hopefully mosquito lasers will become a common item of street furniture in tropical towns and cities. They would be a welcome feature of hotel rooms and bedrooms. And if they could also be programmed to zap ugly buzzing house flies too, so much the better!