The BoniRob is ready to make your Roundup obsolete through the magic of pattern recognition and a mashing tool. Built by Bosch, the gardening / farming bot add-on recognizes weeds by their leaf shape and smashes them deeper into the ground, where the lack of sunlight kills them off.
The robot is being developed as a sort of multi-platform agriculture bot that can be lightly modified to suit the needs of its owner. The weed control components are just one facet of the BoniRob, a buyable (or rentable) module that can be added to the BoniRob platform.
It's fascinating to watch the weed controller in action, if only because it's so quick that it's barely perceptible what's going on. A 1 cm wide tool drills the targets into the ground as it moves along. It's a brilliant alternative to laborious weed picking or misdirected weed killing chemicals, and one that uses the magic of technology to do the job more precisely.