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On a field in England, three robots have been given a mission: to find and zap weeds with electricity before planting seeds in the cleared soil. The robots – named Tom, Dylan and Harry – were developed by Small Robot Company to land of unwanted weeds with minimal use of chemicals and heavy machinery. Robot Tom can scan 20 hectares (49 acres) a day, collecting data which is then used by Dylan, a “crop-care” robot, to zap weeds. Then it’s robot Harry’s to plant seeds in the weed-free soil. Using the full system, once it is up and running, farmers could costs by 40% and chemical usage by up to 95%. “But you have to in mind we only have to go into the parts of the field where the weeds are.” Plants that are neutral or beneficial to the crops are left untouched.