Tiny Weed-Killing Robots Could Make Pesticides Obsolete

Edit: "Editor’s note: While it’s generally true that pesticides are used to kill pests and herbicides are used to kill weeds, the U.S. Environmental Protection Agency defines both agents for killing pests and weeds as “pesticides.” By the government’s definition, pests can be both bugs and weeds." Still. The EPA does not get to redefine English, outside their own publications.