Hi-Tech Weed-Killer

Makarand writes "Instead of making improvements to automatic mechanical weeders, Engineers at UC Davis have been busy developing the next generation robotic weeder which will use computerized images of crop rows to identify weeds and zap them. The system can identify weeds from the regular crop by assessing shape, color, size and other variables from the captured images of the crop row. A robotic cultivator will then blast weeds with a weedkiller using syringes mounted on a tractor. A GPS allows the system to calculate weed type densities within the field and the amounts of chemicals dispensed in the area."