Scientists stunned by results after putting weed-zapping laser to the test: 'We wanted to know'

Scientists stunned by results after putting weed-zapping laser to the test: 'We wanted to know'

Farmers on the East Coast can now fight weeds with laser beams that work just as well as chemical sprays on peas, beets, and spinach. As Cornell University detailed, these smart machines move along crop rows, snap pictures, and use computer smarts to distinguish between crops and weeds.  When it spots a weed, the machine fires a laser that kills only the unwanted plant without damaging nearby crops. Farmers can choose which weeds to target first…